Category Archives: Level Transmitters

Q: Radar level transmitter

Radar level transmitter , also called Radar level gauge. Non-contact Continuous level measurement in liquids and solids with free space radar sensors . Non-contacting radar, based on microwave technology, detects only surfaces that reflect energy. These transmitters work on the principle of a radar by using radio wave emissions. Mounted at the top of a tank filled with a liquid. The transmitter sends a radar signal into the liquid, and receives a reflection of the signal. The transmitters then analyze the current fill level of the tank based on the time taken by the transmitted signal to return.

Q: GWR level transmitter

Guided Wave Radar (GWR) Level Transmitters , also called wave guided radar level transmitter. Using guided wave radar technology, GWR level transmittershave no moving parts. They can measure both level and the interface between two media. Continuous level measurement in liquids and solids with guided wave radar sensors. These transmitters work by sending a microwave pulse through a sensor cable or rod. The signal hits the surface of the liquid, and travels back to the sensor, and then to the transmitter housing. Based on the time taken by the signal to travel down the sensor and back up again. The electronics integrated in the transmitter housing determine the filling level.

Q: Hydrostatic level transmitter

Hydrostatic level transmitters , also called submersible level transmitter, or pressure level transmitters. For Hydrostatic level measurement, Continuous level measurement in liquid applications with pressure sensors . These transmitters help in determining fluid level of a container. By measuring the pressure of resting body of the fluid within it. Read more about: Hydrostatic Submersible Level Transmitter-Straight Rod Insertion

Q: Ultrasonic level transmitter

Ultrasonic Level Indicator , also called Ultrasonic level sensor, or ultrasonic level transmitter . In this type of transmitter, an ultrasonic transducer is mounted at, or near the top of a container containing liquid. The transducer sends out an ultrasonic pulse. The pulse hits the surface of the liquid, and gets reflected. The sensor then calculates the fill level based on the time between the transmitted and received signal.

Level Transmitters are sensors with an electrical transmission output,

or remote sign of liquid, powder or bulk level.

Capacitive, float, mechanical, submersible,

and ultrasonic models are the different types available of level transmitters.

Sino-Instrument offers over 50 level transmitters for level measurement.

About 50% of these are differential pressure level transmitters,

40% is the liquid level sensor,

and 20% are Ultrasonic Level Transmitter and radar level transmitter.

A wide variety of level transmitters options are available to you,

such as free samples, paid samples.

Sino-Instrument is a globally recognized supplier and manufacturer of level measurement instrumentation,

located in China.

The top supplying country is China (Mainland),

which supply 100% of the level transmitters respectively.

Sino-Instrument sells through a mature distribution network,

that reaches all 50 states and 30 countries worldwide.

Level transmitter products are most popular in Domestic Market,

Southeast Asia, and Mid East.

You can ensure product safety by selecting from certified suppliers,

with ISO9001, ISO14001 certification.

If you want to know What is the level transmitter working principle?

You should know:

What are the different types of level transmitters?

There are many different kinds of level measurement transmitters, including:

Capacitance
Hydrostatic
Magnetic
Radar
Ultrasonic
Guided Microwave

Each of these transmitters works in different ways, making them useful for different types of processes.

Capacitance Level Transmitters:

These transmitters use liquid stored in a tank or container,

as a dielectric medium between two or more electrodes.

The energy capacity of the capacitor circuit increases,

when there is more liquid and decreases if there is less liquid. By measuring the variations in the capacitance value,

capacitance level transmitters can calculate the current fill level of the tank or container.

Capacitance Level Transmitters:

Hydrostatic Level Transmitters::

Also known as pressure level transmitters,

these transmitters help in determining fluid contents of a container,

by measuring the pressure of the resting body of the fluid within it. The greater the force of liquid, the greater the volume of fluid.

Magnetic Level Transmitters:

These transmitters use a magnetic object,

which is suspended in a buoyant float.

This is usually in a narrow auxiliary column,

to restrict lateral movements of the float.

While the float is on top of the liquid,

the movement of the float is measured by a different magnetic device.

This allows a precise and stable fill level to be transmitted.

This method is suitable for continuous measurement,

owing to the tendency of the float to rise or sink based on the liquid level.

Radar Fill Level Transmitters:

These transmitters work on the principle of radar by using radio wave emissions.

These transmitters are normally mounted at the top of a tank filled with a liquid.

The transmitter sends a radar signal into the liquid and receives a reflection of the signal.

The transmitters then analyze the current fill level of the tank based on the time taken by the transmitted signal to return.

Ultrasonic Level Transmitters:

In this type of transmitter, an ultrasonic transducer is mounted at,

or near the top of a container containing liquid.

The transducer sends out an ultrasonic pulse.

The pulse hits the surface of the liquid and gets reflected.

The sensor then calculates the fill level based on the time between the transmitted and received signal.

Guided Microwave Level Transmitters:

These transmitters work by sending a microwave pulse,

through a sensor cable or rod.

The signal hits the surface of the liquid,

and travels back to the sensor,

and then to the transmitter housing.

The electronics integrated into the transmitter housing

determine the filling level based on the time,

taken by the signal to travel down the sensor and back up again.

These types of level transmitters are used in industrial applications,

in all areas of process technology.

Choose the right level transmitter for your application:

Magnetostrictive Level Transmitters

Posted on June 3, 2020 by KimGuo11

Magnetostrictive Level Transmitters are level sensors for continuous level measurement. It is the best technology for monitoring and controlling liquid level interface.

Magnetostrictive Level Transmitters are used for continuous measurement of liquid level and interface. Magnetostrictive level measurement is currently the best liquid level measurement and control technology.Sino-Inst’s Magnetostrictive Level Transmitters can provide two independent outputs: interface; overall level. It can be applied when the difference in specific gravity drops to 0.02. Magnetostrictive Level Sensors Commonly used for the measurement of the oil-water interface. And others include acid tanks, propane containers, desalter and sewage tanks. Magnetostrictive Level Transmitters are composed of three parts: probe rod, circuit unit and magnetic float. The flexible cable type and the outer buoy type are derived from the basic model. And has a variety of communication modes 4~20mA, 0~5V, 0~10V, HART, RS-485 and so on.

Sino-Inst offers a variety of magnetostrictive level transmitters for industrial level measurement. If you have any questions, please contact our sales engineers.

More Level Sensors

Featured Magnetostrictive Level Transmitters

LD series Rigid Probe Magnetostrictive Level Transmitter

LR series Integral flange Magnetostrictive level sensor

LT series Digital Display Magnetostrictive liquid level sensor

LP series Magnetostrictive Tank Level Indicator-PVDF/ PPH/ PTFE/ PFA/ PP

MH series Magnetostrictive Cylinder Position Sensor

Features of Magnetostrictive Level Transmitters

Magnetostrictive Level Transmitters are divided into three types: flexible probe type, hard probe type, and outer float isolation detection. The watch body contains two main parts: the electronic part and the sensing part. The advantages of Magnetostrictive Level Transmitters are:

Strong reliability:
Because the magnetostrictive liquid level gauge adopts the principle of waveguide, there is no mechanical movable part. Therefore, there is no friction and no wear. The entire converter is enclosed in a stainless steel tube and is not in contact with the measurement medium. The sensor works reliably and has a long life.
High precision:
Because the magnetostrictive liquid level gauge works with waveguide pulses. In the work, the measured displacement is determined by measuring the time of the start pulse and the end pulse. Therefore, the measurement accuracy is high and the resolution is better than 0.01%FS. The accuracy achieved.
Good security:
Magnetostrictive liquid level gauge has high explosion-proof performance. Intrinsically safe explosion-proof and safe to use. Especially suitable for the measurement of chemical raw materials and flammable liquids There is no need to open the tank lid during the measurement. Avoid the unsafeness of manual measurement.
Easy to install and maintain:
The magnetostrictive liquid level gauge is generally installed through the existing pipe opening on the top of the tank. It is especially suitable for the installation of underground storage tanks and storage tanks that have been put into operation. It can not affect normal production during the installation process.
Facilitate system automation:
The secondary instrument of the magnetostrictive liquid level gauge adopts the standard output signal. It is convenient for the computer to process the signal. It is easy to realize the network work and improve the automation degree of the entire measurement system.

Sensing part (ie probe rod):

The probe has a diameter of 5/8” and the end is sealed. The inside of the probe is hollow and equipped with precision magnetostrictive wires. In addition to the magnetostrictive wires, the probe can also hold up to 8 RTD The sensor is used to detect the temperature. The maximum length of the probe can be 23 meters, and the flexible cable structure is used above 6 meters.

Electronic part (ie controller):

The shell is made of aluminum alloy or 304 stainless steel. It is a double-chamber type (that is, the transmission part is separated from the wiring part). One of the chambers is a micro-processing module and a circuit board, and the micro-processing module has operation buttons. The other chamber is a binding post. There is a wire connected between the circuit board and the probe processing board. This wire should not be loosened without authorization from the manufacturer.

magnetostrictive level transmitter working principle

The magnetostrictive liquid level/boundary transmitter is designed using a physical phenomenon – the principle of magnetostriction. The specific working principle is as follows:

A fine magnetostrictive wire is installed in a non-magnetic sensing tube. A piezoelectric sensor is connected to one end of the magnetostrictive wire. The piezoelectric sensor sends 10 current pulse signals to the magnetostrictive wire every second. and time it.

The current pulse travels down the magnetostrictive wire. A circular magnetic field is generated that moves downward.

Magnetostrictive Level Sensor Operating Principle

The annular magnetic field interacts with the magnetic field of the magnetic float. A torsional stress wave is generated on the magnetostrictive line. This torsional stress wave travels from the float position up and down the magnetostrictive line at a known speed. Knowing The piezoelectric magnetic sensor receives this torsional stress wave signal.

The time interval between the initial current pulse wave and the return torsional stress wave can be known through the timing circuit. The position of the float can be determined according to the time interval. Since the float always floats on the liquid surface, the liquid level can be accurately determined s position.

Applicaitons of Magnetostrictive Level Transmitters

Industries served:	Applications:
Oil and Gas	Position Sensing
Petrochemical	Sanitary Service
Chemical	Valve Positioning
Power Generation	Inventory Control
Water and wastewater treatment	Corrosive Process
Pulp and Paper	Underground Tanks
Biotech	Primary Level/Interface
Marine	Process Temperature and Level

Extended Reading: Low Cost Float Level Sensor for Tank Liquid Volume Monitoring

magnetostrictive level transmitter advantages and disadvantages

When the sensor of the magnetostrictive liquid level transmitter works, the circuit part of the sensor will excite a pulse current on the waveguide wire. When the current propagates along the waveguide wire, a pulsed current magnetic field is generated around the waveguide wire.

Magnetostrictive level transmitter advantages:

The magnetostrictive liquid level gauge is suitable for liquid level measurement of clean liquid level with high precision requirements. The precision reaches 1mm, and the product precision can reach 0.1mm.
It can be used to measure the interface between two different liquids.
The biggest advantage of magnetostriction lies in its extremely high resolution, which can be at the micron level. A typical application is to measure the position of a rolling mill load hydraulic cylinder. But the design here is not the same as level measurement. The position measurement of the hydraulic cylinder is not that the hydraulic oil drives the magnetic ring (ie, the floating ball). Instead, the movable part of the cylinder body drives the magnetic ring to move through the mechanical structure, so the position is very clear. Usually, the precision requirements of the rolling mill for the thickness of the sheet are usually several to tens of microns. Therefore, the resolution of the magnetostrictive sensor must reach the micron level.
The explosion-proof intelligent electronic circuit design can calculate the volume
The movable part of the magnetostrictive liquid level gauge is a float, and the maintenance is extremely low. It is used in liquid level measurement of various storage tanks and has the characteristics of strong environmental adaptability and convenient installation.

Compared with liquid level gauges such as radar, it has a very high cost performance and many functions in short-range measurement. The display screen has current, temperature and interface display. This is exactly why the magnetostrictive level gauge can become one of the most common products used on metering tanks such as gas stations today.

Disadvantages of magnetostrictive level transmitter:

The anti-interference ability is slightly poor (generally it is not recommended to be used in places with strong electromagnetic radiation such as power plants).
It must be a contact measurement, but the real measurement unit is not in contact with the liquid, and only its protection tube is in contact with the liquid.
The medium is in direct contact, and the floating ball sealing requirements are strict, and the viscous medium cannot be measured.
Installation is limited. Higher installation and maintenance requirements, so the market is not widely used.

Extended reading: How To Select Hydraulic Flow Meter?

Magnetostrictive level transmitter price

The price of a magnetostrictive level transmitter is determined based on the measurement conditions. Sino-Instrument is a manufacturer of magnetostrictive level gauges. We offer magnetostrictive level gauges at the right price.

Selection considerations:

1. The selection of the level gauge should be consistent with the environment of the media on the site. Including ambient temperature, pressure, vibration, shock, compatibility of structural materials and media, etc.

2. When the temperature of the measured medium is high (100 ～ 200), it is recommended to choose a probe with an outer float type and use a side flange installation. When the temperature is higher (200 ~ 300), it is recommended to choose a probe with a side-bundled type with an outer float, and install it with a side flange.

3. There are measurement dead zones at the upper and lower ends of the measuring rod of the magnetostrictive level gauge, which should be considered when selecting the range.

4. The size of the stainless steel magnetic float commonly used for level gauges is Ф45 × 56 × Ф15, and flange connection of DN50 or above is required. For the liquid level gauge with thread connection, users need to install flange or bracket.

More Level Senors for Tank Level Measurement

Radar level transmitter, also called Radar level gauge. Non-contact Continuous level measurement in liquids and solids with free space radar sensors. Non-contacting radar, based on microwave technology, detects only surfaces that reflect energy. These transmitters work on the principle of a radar by using radio wave emissions. Mounted at the top of a tank filled with a liquid. The transmitter sends a radar signal into the liquid, and receives a reflection of the signal. The transmitters then analyze the current fill level of the tank based on the time taken by the transmitted signal to return.

Guided Wave Radar (GWR) Level Transmitters, also called wave guided radar level transmitter. Using guided wave radar technology, GWR level transmittershave no moving parts. They can measure both level and the interface between two media. Continuous level measurement in liquids and solids with guided wave radar sensors. These transmitters work by sending a microwave pulse through a sensor cable or rod. The signal hits the surface of the liquid, and travels back to the sensor, and then to the transmitter housing. Based on the time taken by the signal to travel down the sensor and back up again. The electronics integrated in the transmitter housing determine the filling level.

Hydrostatic level transmitters, also called submersible level transmitter, or pressure level transmitters. For Hydrostatic level measurement, Continuous level measurement in liquid applications with pressure sensors. These transmitters help in determining fluid level of a container. By measuring the pressure of resting body of the fluid within it.

Ultrasonic Level Indicator, also called Ultrasonic level sensor, or ultrasonic level transmitter. In this type of transmitter, an ultrasonic transducer is mounted at, or near the top of a container containing liquid. The transducer sends out an ultrasonic pulse. The pulse hits the surface of the liquid, and gets reflected. The sensor then calculates the fill level based on the time between the transmitted and received signal.

Frequently
Asked
Questions

Help Center

Magnetostrictive liquid level transmitter is a kind of liquid level sensor. But it uses the principle of magnetostrictive operation internally. And combines modern electronic technology to measure the time value between pulse waves to achieve the purpose of accurately measuring the liquid level . The magnetostrictive liquid level meter works with waveguide pulses. During the work, the measured displacement is determined by measuring the time of the start pulse and the end pulse, so the measurement accuracy is high.

1.The device electronics generates a low energy current pulse at fixed intervals.
2.The electrical pulses create a magnetic field which travels down a specialized wire inside the sensor tube.
3.The interaction of the magnetic field around the wire and the magnetic float causes a torsional stress wave to be induced in the wire. This torsion propagates along the wire at a known velocity, from the position of the magnetic float and toward both ends of the wire.
4.A patented sensing element placed in the transmitter assembly converts the received mechanical torsion into an electrical return pulse.
5.The microprocessor-based electronics measures the elapsed time between the start and return pulses (Time of Flight). And converts it into a position measure-ment which is proportional to the level of the float.

The level of the liquid medium in the container is called the liquid level. And the instrument that measures the liquid level is called the liquid level transmitter. Level transmitter is a kind of level instrument. There are two types of level transmitterss, one is continuous and the other is point-off. The continuous level transmitter is a real-time monitor of the height of the liquid in the container. The point type, which generally takes two points, high and low, and outputs an alarm signal when the medium in the container reaches these two points.The types of liquid level transmitters is very wide. Specific include: magnetic flap liquid level gauge, tuning fork vibration type, differential pressure type, pressure type. Ultrasonic, magnetostrictive liquid level gauge, magnetic flap, radar and so on.
Levels of media such as: water, viscous fluids, and fuels, or dry media such as bulk solids and powders can be measured using the transmitter.
Level measurement transmitter are used in a myriad of applications that require level measurement within containers or tanks. These transmitters often find their application in material handling, food and beverage, power, chemical, and water treatment industries.
Learn More

Radar level transmitter is a kind of liquid level transmitter which uses the principle of radar operation.
Radar Level Sensor also called radar level transmitter, are the indicating transmitter for liquid level.
Non-contact Continuous level measurement in liquids and solids with free space radar sensors.
RADAR (Radio Detection And Ranging) is a device which can detect the presence of faraway objects by obtaining a reflection of electromagnetic waves emitted from the device itself. Although invented much earlier, wide deployment of radar was done by Britain during the Second World War to detect oncoming German bombers.
Radar level measurement is a safe solution. Even under extreme process conditions (pressure, temperature) and vapors. Various antenna versions for every kind of radar applications are available.
In continuous non-contact level measurement with radar, the sensor sends microwave signals towards the medium from above. The surface of the medium reflects the signals back in the direction of the sensor. Using the received microwave signals, the sensor determines the distance to the product surface and calculates the level from it.

Magnetostrictive probe technology provides underground storage tank and above ground storage tank owners a highly accurate device to measure and transmit water height, fluid height and temperature to a monitoring device. In addition, Veeder-Root probes support in-tank leak detection to assist in compliance management.

LP series Magnetostrictive Tank Level Indicator

Posted on June 3, 2020 by KimGuo11

Tank Level Indicator is important for liquid level monitoring of industrial storage tanks. Magnetostrictive Tank Level Indicator is suitable for corrosive liquids. PVDF/ PPH/ PTFE/ PFA/ PP are optional.

Tank Level Indicator is based on the basic model of magnetostrictive level sensor, using corrosion-resistant materials. The shell structural parts are all made of anticorrosive materials such as PVDF/PPH. It is widely used in the media conditions of strong acid and alkali such as petrochemical industry and new energy. For fuel oil tank, explosion proof is optional.

Sino-Inst offers a variety of Magnetostrictive Tank Level Indicators for industrial level measurement. If you have any questions, please contact our sales engineers.

More Magnetostrictive Level Measurement

Featured Tank Level Indicators

Rigid Probe Magnetostrictive Level Transmitter

Integral flange Magnetostrictive level sensor

Digital Display Magnetostrictive liquid level sensor

Portable Ultrasonic Liquid Level Indicator

Differential pressure(DP) level transmitter

Features of Magnetostrictive Tank Level Indicator

The shell is made of Teflon (Teflon) and other materials, resistant to strong acids and bases. Suitable for super corrosive environment.
The effective stroke is 0～20000mm, and the range can be customized.
There are voltage, current, analog/485 digital/can bus, and various signal output options.
Built-in imported waveguide wire as the measuring unit. After DSP digital signal processing. High precision, no temperature drift, no contact. Life span up to 20 years;
Strong adaptability to temperature environment; the pole can withstand high temperature 300C°.
Pressure resistance and corrosion resistance, float pressure 1.5MPa. It can be applied to most corrosive liquid level measurement applications such as strong acids and bases.
Protection grade IP68
Strong anti-interference ability
High precision
Low power consumption and high cost performance;
Easy to disassemble and install;
Non-contact measurement, high stability.
The absolute value displacement measurement is not affected by power failure;
Can replace LVDT, electronic ruler, encoder and other displacement sensors.

Specifications of Magnetostrictive Tank Level Indicator

Range (mm)	50～2000mm or customized according to customer needs
Power supply voltage:	+11VDC~+36VDC
Output form/working voltage:	Analog signal: 4~20mADC, 0~5VDC, 1~5VDC, 0~10VDC (+15VDC~+36VDC) Digital signal: RS485
Load capacity:	Voltage signal output load ≥1KΩ. Current signal output load ≤1KΩ
Non-linear error:	±0.05%FS; maximum error 100μm below 200mm
Repeatability error:	better than 0.005%FS
Resolution:	better than 0.005%FS
Hysteresis:	better than 0.002%FS
Working temperature:	0~+70℃ -15~+60℃ -25~+70℃ -40~+85℃
Rod material:	0Cr18Ni9 (304) 316 stainless steel (special customization)
Electronic enclosure shell material:	0Cr18Ni9 (304) 316 stainless steel (special customization)
Lead way:	PVC shielded cable. Default length: 1m, also available according to user requirements. Aviation plug (not applicable to explosion-proof products) terminal
Enclosure protection level:	IP68

Tank level indicator float type

Float level sensor (float switch) is one type continuous level sensor for industrial level measurement. Float level sensor has a magnetic float that rises and falls as liquid level changes. The movement of the float creates a magnetic field. Through the magnetic coupling effect, the internal resistance of the sensor changes linearly. The resistance change is converted into a standard current signal of 4 ~ 20mA by an intelligent converter. The percentage of the liquid level, 4 ~ 20mA current and liquid level value, can be displayed on site. Applications like: water tank, fuel tank, level measurement and level control. Vertical, horizontal, and side mounted, all can be satisfied

Extended reading: Industrial Tank level indicators and Tank Level Gauges.

Large water tank level indicator

The water level sensor of your water tank is an essential component. If not repaired or replaced, a sensor can become damaged over time and fail entirely. Too much water can cause a malfunction and too little water means inadequate water pressure. Either way, repairing or replacing holding tanks is an expensive task you shouldn’t have to undertake because of sub-par sensors.
With Sino-Inst’s water tank level sensors, there’s nothing to break down or rust and our models have a 99% success rate!

In the high unlikely event that you experience any issues with your product, call us and we’ll replace or repair it immediately at no charge.

About Level Sensor Types and how they work, OMEGA Engineering has a good explanation. Video source: https://www.youtube.com/watch?v=bHxEXlIHSHY&feature=emb_logo

Propane tank level indicator

Propane, three-carbon alkane, chemical formula is C3H8, structural formula is CH3CH2CH3. Colorless, liquefied gas is slightly soluble in water, soluble in ethanol and ether Mixed with air to form explosive mixture. Exist in natural gas and petroleum pyrolysis gas. The chemical properties are stable, and chemical reactions are not easy to occur. Used as refrigerant, internal combustion engine fuel or organic synthetic raw materials.

A propane gauge shouldn’t be hard to pick, and it shouldn’t cost a lot of money. We know that, so we’re going to show you how to pick the best propane tank gauges.

See if there is stirring in the tank. If there is a mixer, then add a measuring tube on the side of the tank. Generally, the magnetic flap level gauge, float level gauge or magnetostrictive level gauge are commonly used.

It also depends on your working conditions, such as temperature and pressure to measure the density of the medium, and whether your spherical tank is supported.

The external measuring liquid level gauge is also called an externally attached ultrasonic liquid level gauge. Its working principle is ultrasonic echo ranging. That is, the ultrasonic wave is transmitted through the tank wall in the liquid medium and returned to the liquid level to be received by the sensor. Through its time difference To calculate the liquid level height, on-site OLED display.

At the same time realize the remote transmission of the monitoring liquid level and realize automatic control. Also suitable for liquid level measurement of liquefied gas, propylene, propane, ethane spherical tank.

💡 Industrial Propane Tank Level Indicators for Industrial Tank Level Measurement

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FAQ

What is magnetostrictive level transmitter?

Magnetostriction means that the change of the magnetization direction in ferromagnetic substance will cause the change of the medium lattice spacing. As a result, the length and volume of the ferromagnetic substance change.
Magnetostrictive level transmitter is a level transmitter based on the principle of magnetostriction. It is a high-precision, high-resolution transmitter driven by a magnetic float.

How does a magnetostrictive sensor work?

1. When the sensor of the magnetostrictive level transmitter works, the circuit part of the sensor will excite a pulse current on the waveguide wire.
2. When this current propagates along the waveguide wire, a pulsed current magnetic field is generated around the waveguide wire.
3. There is a float outside the sensor rod of the magnetostrictive liquid level gauge. This float can move up and down along the rod with the change of liquid level.
4. Inside the float there is a set of permanent magnetic rings. When the pulsed current magnetic field and the magnetic ring magnetic field generated by the float want to meet. The magnetic field around the float changes so that the waveguide wire made of magnetostrictive material generates a torsional wave pulse at the position of the float.
5. This pulse is transmitted back along the waveguide wire at a fixed speed and detected by the detection mechanism.
6. The position of the float, that is, the position of the liquid surface can be accurately determined by measuring the time difference between the pulse current and the torsional wave.

What is flow and level sensor?

1. Flow sensor is a kind of detection instrument used to detect the flow parameters of liquid, gas and other media and convert it to other forms of signals for output. The flow sensor has many advantages such as small size, light weight, intuitive and clear reading, high reliability, and no pressure loss.
1. Level sensor is a sensor that can replace manual measurement. The liquid level sensor can convert the height of the liquid level into an electrical signal for output, so as to achieve the purpose of controlling the liquid level.

Sino-Inst offers over 10 Tank Level Indicators for level measurement.

About 50% of these are Magnetostrictive liquid level sensors, 40% is the tank level sensor. A wide variety of level meters options are available to you, such as free samples, paid samples.

Sino-Instrument is a globally recognized supplier and manufacturer of level measurement instrumentation, located in China.

Tank Level Indicator products are most popular in North America, Domestic Market, and South America. You can ensure product safety by selecting from certified suppliers, with ISO9001, and ISO14001 certification.

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KimGuo11

drurylandetheatre.com

Hydrostatic Level Measurement

Posted on May 26, 2020 by KimGuo11

Hydrostatic level measurement is often used for tank level measurement. Hydrostatic level measurement is one type of continuous level measurement.

What Is Hydrostatic Pressure?

Hydrostatic pressure sensors are used to measure the level or fill height of liquids. Hydrostatic pressure measurement is suitable for liquid level measurement due to the static pressure effect of non-flowing fluids. This physical principle describes the effect of the gravity of a stationary (i.e. non-flowing) liquid on the measurement point. This gravity is often described as “hydrostatic pressure”.

Sino-Inst offers a variety of Hydrostatic level senors for industrial level measurement. If you have any questions, please contact our sales engineers.

More Pressure Transmitters

Select a Featured hydrostatic level sensor for your application

**SI-151 Hydrostatic Level Sensor**
Hydrostatic Level Sensor (Best Price), also called Hydrostatic level transmitter. Continuous level measurement in liquid applications with pressure sensors.

**SI-10 Liquid pressure sensor**
Liquid pressure sensor is widely used for pressure measurement of various liquids. Like water or oils. IP68 waterproof.

**SI-PCM261 Submersible Pressure Transducer**
Submersible pressure transducer with 4-20mA output,
is normal submersible pressure transmitter for level measurement.

**SMT3151TR Submersible Level Transmitter**
Hydrostatic level transmitter is also called hydrostatic level gauge. The rod-type Hydrostatic level transmitter 4-20mADC standard signal output. Flange or threaded installation. Can withstand high temperatures up to 450 ℃.

**SI-PCM260 Deep Well Water Level Sensor**
Well water level sensor is to apply Hydrostatic Level Sensor to deep well. Well water level sensor submerged in deep well work together with submersible water pump. Range 300m ～ 1000m.

**SI-302 Anti-corrosive Submersible Level Transmitter**
Submersible Level Transmitter is made of Anti-corrosive all-tetrafluoroethylene(PTFE) material. It has high temperature resistance, corrosion resistance and anti-clogging.

**Wireless Level Sensor – LoRa** The Wireless Level Sensor upgrades the LoRa wireless transmission function based on the Hydrostatic Level transmitter. Measure water or oil level.

**Pressure Guided Submersible Level Transmitter**
Stainless Steel Level Sensor-Pressure Guided Submersible Level Transmitter. The sensor part and the signal processing circuit are inside the junction box. It is used for high temperature, corrosive liquid, sewage, etc.

The above level sensors are Submersible Level Transmitters. According to your measurement needs, we can provide various customizations. For example: measuring range, installation method, output method, explosion-proof, lightning protection, anti-corrosion, etc.

If you cannot use a level probe, we recommend that you use a pressure level sensor.

Extended reading: sludge level measurement

Hydrostatic level measurement with Pressure Transmitters

Flange Mounted Differential Pressure Transmitter

Extended Diaphragm Seal DP Level Transmitter

Remote Seal Differential Pressure Transmitter

In open and closed tanks, there may be special conditions such as high temperature and corrosion. At this time, use a pressure or differential pressure transmitter, with flange, diaphragm, capillary, etc. We can achieve the static pressure measurement of the tank liquid level.

Image source: https://new.siemens.com/global/en/products/automation/process-instrumentation/level-measurement/continuous/hydrostatic-level-measurement.html

Pros & Cons of Hydrostatic level measurement system

About Hydrostatic level transmitter advantages and disadvantages, we do a simple analysis here. If you want to know more about the advantages and disadvantages of level transmitters. Please refer to Sino-Inst Level Transmitters.

Advantages

High measurement accuracy;
The ultra-high range can be customized up to 1000 meters.
Easy to install;
The signal can be transmitted remotely;
The corrosion of various media can be resisted by choosing different materials;
Suitable for explosion-proof occasions;
Low cost;

Disadvantages

The measurement signal needs to be converted;
When the measuring range is greater than 5 meters, it is impossible to measure the high temperature medium temperature exceeding 125 ℃;
The density of the measuring medium must be uniform.

Hydrostatic level sensor installation guide

If you choose a submersible pressure transmitter. You must lower the device into the medium by cable. Until you reach the bottom of the tank, reservoir or underground resources, or until you reach the required zero level. Then, run the cable from the oil tank or water tank to the control system. Connect the level probe to the PLC accordingly.
If you have turbulent media, you should use an extra tank weight to stabilize the level probe in the media. To obtain a stable pressure reading. To prevent the cable from any mechanical damage. You can use the cable clamp to fix the cable on the top of the water tank. Or when connecting the cable to the control system.
If you choose a standard pressure transmitter. Simply screw the transmitter into the threaded hole on the bottom or side of the tank. Then, connect the transmitter to the PLC with the appropriate cable connector. Or if cable connection is selected, connect the transmitter directly to the control system.

Hydrostatic level sensor can also be used with paperless recorder.

Capacitive vs Hydrostatic level sensor

Capacitive liquid level transmitter is the core sensor working principle of a transmitter. Refers to an instrument that measures differential pressure by detecting changes in capacitance on both sides of the sensing diaphragm. Theoretically, it can measure the pressure and differential pressure in any form, including liquid level. The reason why it is called a liquid level transmitter is only because its installation method is specially designed for liquid level measurement. The essence of the capacitive liquid level transmitter is a differential pressure transmitter.

Hydrostatic level sensor refers to a method of measuring liquid level using the principle of Hydrostatic pressure. Liquid level height × medium weight = pressure difference between liquid level and upside. This method of measurement requires the use of a differential pressure transmitter. If this differential pressure transmitter is designed to be more suitable for liquid level measurement, it is called a liquid level transmitter.

Extended reading: Hydrostatic Pressure Transmitter

Frequently
Asked
Questions

Help Center

A submersible pressure transducer or a flush pressure sensor measures the height-dependent weight-force of the liquid column, also known as hydrostatic pressure.
This pressure measurement is directly proportional to the liquid level respectively liquid column, at the measuring point of the pressure sensor.
It is, therefore, necessary, for the measurement of level, that the pressure sensor is placed as close as possible to the level of the vessel’s bottom.
The measured hydrostatic pressure then directly corresponds to the height of the liquid column, from the ground-level measurement point to the surface-level of the medium.
So, the filling height is calculated from the distance of the medium surface, to the measuring point by the pressure measurement.
The weight force of the liquid column, thus the hydrostatic pressure, however, is not only directly proportional to the filling height but also varies with the specific gravity of the medium and the force of gravity.
Read more about: Differences! Static pressure vs dynamic pressure vs total pressure

Hydrostatic pressure is the pressure that a homogeneous fluid acts on an object.
This is a omnidirectional force that is evenly applied to all parts of the surface of the object. Increased hydrostatic pressure will reduce the volume of the stressed object, but will not change its shape

Hydrostatic level transmitter is actually a type of pressure transmitter. Hydrostatic level transmitter is the application of pressure transmitter to liquid level measurement. The submersible Hydostatic pressure level transmitter is based on the principle that the measured liquid static pressure is proportional to the height of the liquid. Piezoresistive effect using diffused silicon or ceramic sensitive elements. Convert static pressure into electrical signal. After temperature compensation and linear correction. Convert to 4-20mADC standard current signal output. In order to achieve liquid level measurement.

Usually we measure the liquid level by measuring the pressure.
When the liquid level transmitter is put into a certain depth in the measured liquid, the pressure formula of the sensor facing the liquid surface is: Ρ = ρ.g.H + Po. In the formula:
P: the pressure on the liquid face of the transmitter
Ρ: measured liquid density
G: local gravity acceleration
Po: atmospheric pressure on the liquid surface
H: Depth of transmitter into liquid
At the same time, the pressure of the liquid is introduced into the positive pressure chamber of the sensor through the air-conducting stainless steel. Then connect the atmospheric pressure Po on the liquid surface to the negative pressure chamber of the sensor. To offset Po on the back of the sensor, the pressure measured by the sensor is: ρ.g.H. Obviously, by measuring the pressure P, the liquid level depth can be obtained.
Of course, if the liquid level is measured, the pressure value can also be converted.
Read more What is a diaphragm seal?

Yes. If it is an open tank use a transmitter. If it is pressurized, 2 pressure transmitters must be used (the difference in the software is the liquid level height). The range unit of the transmitter is preferably mmH2O.
If the medium is not water, its density must also be known. This allows for span correction (top transmitters do not do span correction). Generally, a double-diaphragm differential pressure transmitter is used to detect the liquid level.

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Hydrostatic level sensor price

Compared with other liquid level transmitters, Hydrostatic level esnsor has lower cost. The price of Hydrostatic level sensor is mainly affected by the measurement situation. Such as:

Range range;
Medium temperature;
The medium is corrosive;

Sino-Inst is a manufacturer of Hydrostatic level sesnor. Sino-Inst provides customers with the best Hydrostatic level measurement price. For example, the general-purpose Hydrostatic level transmitter has a reference price of USD70. If you want to know the exact price, please contact our sales engineer.

Sino-Instrument offers detailed product specifications and data sheets for review. Our application engineers, can help ensure you choose exactly what you need for your specific installation. Or if you need the RFQ instantly, we can offer you with the submersible level transmitter price immediately.

Extended Reading: bin level measuring system

Sino-Inst offers over 50 Hydrostatic level sensors at best price.

About 50% of these are Submersible Pressure Transducer, 40% are Differential Pressure Gauge, and 40% are Diaphragm Seal Pressure transmitters.
A wide variety of Submersible Pressure Transducer options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of
Submersible Pressure Transducer, located in China. Sino-Inst sells through a mature distribution network that reaches all 50 states and 30 countries worldwide. Submersible Pressure Transducer products are most popular in Domestic Market, Southeast Asia, and Mid East.

You can ensure product safety by selecting from certified suppliers, with ISO9001, ISO14001 certification.

Readd more about: [What is and How it Works]Hydrostatic Level Sensor

Request a Quote

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KimGuo11

drurylandetheatre.com

SI-302 Anti-corrosive Submersible Level Transmitter

Posted on May 25, 2020 by KimGuo11

Submersible Level Transmitter is made of Anti-corrosive all-tetrafluoroethylene(PTFE) material. It has high temperature resistance, corrosion resistance and anti-clogging.

Submersible level transmitter made of PTFE is perfect in the harshest applications. Like Acid and alkali environment, Sludge and Slurries. Anti-corrosive Submersible Level Transmitter utilizes the linear change law of liquid height, density and pressure. It converts the change of liquid level into linear 4-20mADC standard signal output. Integrate temperature compensation calibration technology. Easy installation. Anti-corrosive Submersible Level Transmitter adopts two-wire system. 4 ～ 20mA output. 24V DC power supply. ATEX, 3 wire, remote mount transmitter optional.

Sino-Inst offers a variety of Submersible level transmitters with 4-20mA for industrial level measurement. If you have any questions, please contact our sales engineers.

More Hydraostatic Level Sening

Features of SI-302 Anti-corrosive Submersible Level Transmitter

Corrosion resistance, high precision, low cost, high temperature resistance, anti-clogging;
Convenient installation. Directly put the lowest point of the liquid level of the measured medium. Very convenient to use;
Solid structure. No moving parts. High reliability. Long service life;
Widely used to measure the liquid level of any liquid. Except for the medium corrosive to tetrafluoroethylene;
From water, oil, acid, alkali, salt to paste with high viscosity can be measured with high accuracy. It is not affected by the foaming, deposition and electrical characteristics of the measured medium.
With power supply reverse polarity and overload current limit protection.

Specifications of Submersible Level Transmitter

Measuring range:	0~200m
Accuracy:	0.5
Signal output:	4~20ADC, 0~20mA
Loading resistance:	0~600Ω
Transmitting distance:	>1000m
Working voltage:	24VDC
Working temperature:	-50~ +80 °C; -50~ +450 °C;
Environmental temperature:	-40~ +50 °C
Relative humidity:	≤85%
Contacting liquid material:	Stainless steel, PP, PTFE
Installation type:	Flange: DN32 (HG/T20593,20595-97) RF sealing face ； G2″ thread（customize）
Electrical connection:	M20×1.5
Explosion-proof grade:	Exia II CT6Ga; Exd II CT6Gb

Extended reading: sludge blanket level detector

Applications of Anti-corrosive Submersible Level Transmitter

Anti-corrosive Submersible Level Transmitter liquid contact material uses PTFE. Fully sealed welding of stainless steel shell. If customer needs, can be customized full PTFE material. Industry standard 4 ～ 20mA or 0 ～ 10mA signal output. Basically, no maintenance is required, and the wetted part is made of full PTFE material, which is extremely resistant to corrosion.

Anti-corrosive Submersible Level Transmitter is widely used in harshest applications such as Sludge and Slurries.

Product Applications:
Sulfuric acid, hydrochloric acid, hydrofluoric acid;
Corrosive liquids such as liquid alkali, xylene and acetone;
Wastewater;
Sludge pits, clarifiers, digesters;
Alum tanks;
Chemical storage tanks;
Oil tanks;
Lime slurry;
Sumps;
Reservoirs;

Extended reading: Applications of Radar Corrosive Liquid Chemical Level Sensor

How do Submersible Level Transmitters Work?

The basic working principle of Hydrostatic Level Sensor is static pressure level measurement.

In liquid, the pressure generated at a certain depth is generated by the weight of the medium itself above the measurement point. It is proportional to the density of the medium and the local acceleration of gravity.

The formula P = ρgh reflects the proportional relationship between them.

Where P = pressure, ρ = medium density, g = gravity acceleration, h = depth of measurement point.

Therefore, the physical quantity measured by the input liquid level gauge is actually pressure. It can be understood by the calibration unit mH2O of the input level gauge. The actual liquid level must be obtained by conversion after knowing the two parameters of density and gravity acceleration. In the industrial field, such conversion is usually performed by a secondary instrument or PLC.

The Hydrostatic Level Sensor mainly measures corrosive liquids such as hydrochloric acid, hydrogen peroxide, etc. Or chemical and electroplating wastewater. Mainly used in measuring corrosive media. It has the advantages of strong corrosion resistance and stable performance.

More Submersible Pressure Transmitters for level measurement

Submersible Level Transmitter Calibration

Unscrew the protective cover and you will see the zero and full range resistors. External standard power supply and ammeter (above 0.2 level) can be adjusted. Proceed as follows:

When the transmitter has no liquid. Adjust the zero resistor to make the output current 4mA;
Transmitter is filled to full scale. Adjust the full range resistor to make it output current 20mA;
Repeat the above steps two or three times. Until the signal is normal;
The adjustment is completed. Tighten the protective cover.

Submersible Level Transmitter installation and precautions

The transmitter probe has an M20 × 1.5 interface, which can be screwed directly on the wall of the container or pipeline. Can also put the transmitter into the pool or other liquids. Cable lead to display instrument, secondary instrument or control room. Note that the cable part on the ground needs to be protected or elevated. If there is sediment at the bottom of the liquid to be tested. The transmitter should be raised or filtered for protection.

A. Instructions for installation of input liquid level sensor:

Sludge and oil residue are easy to deposit on the bottom of the tank. It is recommended to move the measuring probe at a certain height away from the bottom of the tank (cabin). To avoid debris blocking the probe.
When the medium in the tank fluctuates greatly and the air guide cable is very long. The probe should be fixed with a sleeve. To prevent the probe from swinging and affecting the measurement accuracy.
When the transmitter is installed, the bending radius of the air guide cable should be greater than 10 cm. Avoid excessive bending to damage the air guide cable.
The ground terminal of the input liquid level transmitter should be reliably grounded. The power shield should be connected to it.
The installation direction of the transmitter is vertical. The installation position of the input type (probe) should be far away from the liquid inlet and outlet and the agitator.
If the medium in the tank has large vibration, wire should be wrapped around the transmitter (probe). Use steel wire to reduce shock to avoid breaking the cable.

B. How to install the input liquid level sensor (probe) to prevent damage to the diaphragm?

When the Submersible Level Transmitter is installed in a stationary deep well or pool. Usually the steel pipe with inner diameter Φ45mm is fixed in water. Make small holes at different heights on the opposite side of the liquid flow direction, so that the medium can enter the tube smoothly. Then put the input liquid level transmitter into the steel pipe and use it.

Learn More About Submersible Level Transducer.

How to use Submersible Level Transmitter ?

It is best to choose a regulated power supply to supply power separately. The stability of the power supply affects the performance index of the transmitter. It is best to control its error to less than one-fifth of the allowable error of the transmitter. For products with special power supply requirements, special power supplies must be connected.
The signal cable of the liquid level transmitter should adopt shielded cable. Prevent electromagnetic interference.
Connect the transmitter according to the correct wiring method. The power-on time should be between 15 and 30 minutes.
If the liquid level transmitter is installed in the pool, water tower and other occasions. You can sink its probe underwater. Keep away from locations where the water velocity is too fast.
In the installation of liquid level transmitters with large fluctuations such as submersible pumps, it is best to use the method of inserting steel pipes. The steel pipe should be fixed firmly. A hole should be made in the steel tube at every interval. The position of the steel pipe should be far away from the water inlet and outlet.
The junction box should be fixed firmly. Or install a fixed bracket. It must be protected from dry and shaded places and must not be exposed to rain.
Protect the ventilation cable. It must not be bent, blocked or damaged. Extra cables can be coiled nearby.
The liquid level transmitter installed outdoors must also take lightning protection measures.

Submersible Level Transmitter for Wastewater

The wastewater treatment process involves many occasions where the liquid level needs to be measured. Also due to the characteristics of the sewage treatment process itself. Need to choose the appropriate level sensor according to the characteristics of each process and medium.

The sensor must be suitable for measuring sewage. The acid, alkali and small particles in the sewage have no effect on the measurement accuracy and life. The sensor has high measurement accuracy. Easy to install. Easy to adjust. The level gauge display is intuitive and has analog output and alarm output functions.

Generally speaking, magnetic float level sensor, ultrasonic level sensor and Submersible Level Transmitter can be used to measure the sewage level.

The magnetic float level sensor is to convert the displacement of the magnetic float with the change of liquid level into a simulated linear standard signal output. The measurement accuracy can generally reach 1.5. When used for sewage measurement, the oil and suspended particles in the sewage will gradually adhere to the wall of the level gauge pipe. Over time, the amount of floating objects increases and the friction increases. The floating ball cannot rise and fall freely as the liquid level changes. It cannot be measured.
The ultrasonic level sensor is based on the relationship between the distance from the ultrasonic probe to the surface of the measured object and the time. This type of liquid level gauge is almost not limited by the measured medium, but has a blind zone, which is suitable for the level measurement of the large “H” value of the storage silo. For the level measurement of sewage pits, due to the existence of blind areas, it has a greater impact on the accuracy of the measurement.
Submersible Level Transmitter (cable static pressure liquid level transmitter) uses ceramic or diffused silicon sensors. The sensor goes directly into the measured liquid. The static pressure of the liquid medium directly acts on the sensor diaphragm. The static pressure is proportional to the height of the measured liquid. This level transmitter is small. Easy installation and low cost.

Compare the advantages and disadvantages of the above level gauges. Most customers will choose Submersible Level Transmitter.

Extended reading: Sludge flow meter for sewage treatment return activated sludge system

FAQ

What is hydrostatic level sensor?

Hydrostatic pressure level sensor (Submersible Level Transmitter) is a pressure sensor that measures liquid level based on the principle of static pressure measurement. It can also be called “static pressure liquid level gauge, liquid level transmitter, liquid level sensor, water level sensor”

What is the water level sensor?

The water level sensor is an instrument that can convert the water level parameter of the measured point into the corresponding power signal in real time. It is mainly composed of a fully sealed isolation membrane oil-filled sensor and a built-in high-performance microprocessor.
There are many types of water level sensors. There are three common types of ultrasonic liquid level sensors, servo liquid level sensors and static pressure liquid level sensors. Due to the differences in their working principles and performance, their applications are also different.

What is ultrasonic level sensor?

The ultrasonic level sensor is a non-contact liquid level sensor. Ultrasonic sensors are sensors developed using the characteristics of ultrasound. Ultrasound is a mechanical wave with a vibration frequency higher than that of sound waves, which is generated by the vibration of the transducing wafer under the excitation of voltage. It has high frequency, short wavelength and small diffraction phenomenon. In particular, it has good directivity, and can be ray and directional propagation. Ultrasound has a great ability to penetrate liquids and solids. Especially in the opaque solids of sunlight, it can penetrate a depth of tens of meters.

Sino-Inst offers over 10 Submersible Level Transmitters. About 50% of these are Submersible Level Sensors, 40% are water level meters, and 40% are liquid treatment.
A wide variety of Submersible Level Transmitter options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of Submersible Level Transmitter, located in China.

Sino-Inst sells through a mature distribution network that reaches all 50 states and 30 countries worldwide.
Submersible Level Transmitter products are most popular in Domestic Market, Southeast Asia, and Mid East. You can ensure product safety by selecting from certified suppliers with ISO9001,ISO14001 certification.

Request a Quote

Please enable JavaScript in your browser to submit the form

KimGuo11

drurylandetheatre.com

SI-ML Portable Ultrasonic Liquid Level Indicator

Posted on March 2, 2020 by KimGuo11

Portable Ultrasonic Liquid Level Indicator allows you to conveniently detect the level of liquid available in a container /cylinder/pipe/tank. Ultrasonic principle, Non-contact.

Portable ultrasonic liquid level indicator is best choice for tanks or pipes level measurement. It is designed to measure the presence or absence of liquid at a certain height position in a tank or in pipelines. Non-contact ultrasonic detection technology. SI-ML works perfect for detection of dangerous toxic or corrosive liquids. Under ordinary conditions, the maximum wall thickness of measurable containers is 30mm. The product is suitable for the detection of various types of liquids. Liquids are non-crystalline or other particulate matter. For example CO2 Tank. Thanks to non-contact detection technology, this level indicator is ideal for detecting hazardous toxic or corrosive liquids.

Please feel free to contact us for Techinical Support, or Request a quote for Portable ultrasonic liquid level indicators (customization available).

Features of Portable Ultrasonic Liquid Level Indicator

SI-ML Portable Ultrasonic Liquid Level Indicator is mainly used for liquid level detection of various tanks and pipes.

Detect the storage capacity of fire extinguishing agent storage containers in gas fire extinguishing systems (eg, original Indo-European, haloalkane, CO2, etc.). Measure the presence of liquid level in a cylinder or container at a certain height position, such as haloalkane, CO2, etc. It can also indicate the presence of a liquid level in the container.

The material of the measurable container can be various metals, glass or non-foam. And the measurable wall thickness is usually not less than 30mm. This measurement technique is not affected by factors such as medium density, dielectric constant, electrical conductivity, reflection coefficient, pressure, temperature, sediment, and so on.

The product can be used to detect all liquids that do not crystallize and contain no particulate matter. Because it uses non-contact detection, it is ideal for fire detection of toxic and corrosive hazardous liquids and acceptance testing of gas fire suppression systems.

No contact with medium
Suitable for toxic, corrosive, orinvasive medium
No need for drilling or welding on tank wall
Advanced ultrasonic sensor technology
Reliable measurement results
Easy and convenientt ooperate and maintain
Ultrasonic adaptive detection algorithm.
High-contrast OLED color display, suitable for outdoor use under strong light.
Newly added ultrasonic waveform display function facilitates parameter testing, waveform comparison and other functions to ensure measurement accuracy in complex situations
Gooduser interface design
The comprehensive software displays the measurement results, and the method is simple

Working principle of Portable Ultrasonic Liquid Level Indicator

The portable ultrasonic cylinder liquid level indicator couples high-frequency ultrasonic pulses generated by the sensor to the outer wall of the container. An ultrasonic signal is then returned from the container wall. Different media attenuate the received ultrasonic signals differently. The received reflected wave generates an electrical signal. The magnitude of the electrical signal can be displayed by the digital value of the LCD on the panel, and the LED corresponding to the liquid level is lit.

Different sensors have different sensitive devices. When measuring, different containers and different liquids will produce slightly different readings, so this reading is not absolute. But the same thing is that when the sensors are connected to the respective inside and outside of the container, the reading of the level indicator will change significantly. In this way, you can determine whether there is liquid at a certain height position in the container by changing the indicator on the instrument and the value displayed on the LCD.

Extended reading: The Secret of Ultrasonic Level Measurement

How to use Ultrasonic Liquid Level Indicator?

Operation Guide for Ultrasonic Liquid Level Indicator:

Structure of Portable Ultrasonic Liquid Level Indicator

Applications of Portable Ultrasonic Liquid Level Indicator

Liquid level detection of dangerous chemicals in storage tank
Liquid level detection for CO2 storage tank of the fire fighting system in the off shore drilling platform
Liquid level detection in common tank

Note: Usable for calibration of liquid level meter

Extended reading: GWR Corrosive Liquid Chemical Level Sensor

Portable ultrasonic liquid level indicator for Co2

Co2 cylinder specifications (external diameter division):

The CO2 cylinders measured by this meter are divided into the following 4 specifications: 215mm-225mm diameter cylinders. 270mm-280mm diameter cylinders. 345mm-355mm diameter cylinders. 395mm-405mm diameter cylinders. There are no excessive requirements for the height of the medium and the tank.

If you need to purchase liquid level gauge for CO2 Cylinders, you may like:

CO2 Cylinder | Portable Liquid Level Gauge

Procurement Guide: Ultrasonic liquid level sensors

Co2 cylinder measurement operation:

Select “co2 cylinder”-“Choose a suitable cylinder diameter” through the menu and enter the measurement interface.
Hold the probe vertically and tightly on the tank, and press the <Measure> button to measure.
Measurement results are based on measurement parameters and level indicator lights (red is “no liquid”, green is “with liquid”)
Generally, the measurement is started from the bottom of the storage tank (measurement with liquid position). If the measurement parameter is> = 2, the current level is considered to be a liquid-free position. And <2 is considered to be a liquid level. if it is floating around 2, It is considered that the liquid level of the horizontal plane is approaching the liquid surface (usually about 5 cm).
Take multiple points on the same horizontal plane for measurement. And take the result with the highest probability as the final result (avoid the interference of welds and unknown factors).
Find the liquid level position step by step through the approximation measurement.

Co2 cylinder measurement Note:

Due to the irregular shape of the air outlet and the many welding kits on the top of the carbon dioxide cylinder, the bottom and top measurement results are invalid. (If the fuel tank is full, the top is usually empty).

FAQ

What is ultrasonic level measurement?

Ultrasonic liquid level measurement is non-contact liquid level measurement. Commonly used for non-contact liquid level measurement. Such as tank level, river level, etc.
Based on the principle of ultrasonic time difference, the ultrasonic liquid level sensor is used to complete the ultrasonic liquid level measurement.
Read more: Guide: Non-contact Ultrasonic Level Sensing transmitters

How does an ultrasonic level transmitter work?

To put it simply, the ultrasonic wave sent by the ultrasonic sensor hits the bottom of the tank or the liquid surface vertically. The sensor then receives the reflected return signal. The time difference between one trip and one trip back and forth. Through intelligent calculation inside the instrument. The calculation formula is as follows: h = H-v * t / 2. Where: h is the required liquid level height. H is the distance between the ultrasonic probe and the bottom of the container. v is the speed of ultrasonic sound. t is the ultrasonic propagation time. It can be seen that the measurement accuracy of liquid level depends on the measurement accuracy of ultrasonic sound velocity v and ultrasonic propagation time t.
Extended reading: Guide to Ultrasonic Level Transmitters

How does water level sensor work?

The water level sensor is an essential component. If not repaired or replaced, a sensor can become damaged over time and fail entirely. Too much water can cause a malfunction and too little water means inadequate water pressure. Either way, repairing or replacing holding tanks is an expensive task you shouldn’t have to undertake because of sub-par sensors.
With Sino-Inst’s water tank level sensors, there’s nothing to break down or rust and our models have a 99% success rate!
In case you encounter any problems with the product, please call us and we will immediately replace or repair it for you for free.
Read more about our water tank level sensors and control systems.

How does a level transmitter work?

There are 7 main types of level transmitters that Sino-Inst offers. Each type of transmitter works in a different way, and makes it useful for different types of processes.
Capacitance Level Transmitters
Hydrostatic Level Transmitters
Magnetic Level Transmitters
Radar Fill Level Transmitters
Ultrasonic Level Transmitter
Guided Microwave Level Transmitters
Magnetostrictive Liquid Level Transmitters

Other Non-Contact Level Measurement

**ULT-100A Ultrasonic Level Transducer**

**ULT-200A Ultrasonic fuel tank level sensor**

**HS-2000 Ultrasonic Tank Level Sensor-External Mounted**

**HS-ULC Ultrasonic Level Switch-External Mounted**

**HS-ULC-Pro Ultrasonic Non-contact Liquid Level Controller**

More about: Ultrasonic Level Sensor Applications

Sino-Inst offers Ultrasonic Liquid Level Indicators for tank level indicate. Portable co2 bottle liquid level gauge uses ultrasonic non-contact measurement technology. Detect and display the presence or absence of the Co2 cylinder liquid level.

The Digital portable Ultrasonic Liquid Level Indicators are designed to offer a simple, accurate, rapid and reliable method. Determining the liquid level of high or low pressure CO2, Halon, FM200, Propane, Novec 1230 and any liquefied gas under pressure. No need to move or weigh the cylinders.

Request a Quote

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KimGuo11

drurylandetheatre.com

SI-U05 Cable Float Level Sensor & Swtich

Posted on February 21, 2020 by KimGuo11

Cable Float Level Sensor (Float level switch) for water/level switch control.

Cable Float Level Sensor (Float level switch) is a high performance level control switch. It can control the work of the liquid pump, adjusting the liquid level. And it can also be installed in the submersible pump to control and protect the motor. High sealing performance is guaranteed by polypropylene injection. It is a switch that can adjust the liquid level in a bucket, tank or well. Cable Float Level Sensor is self-adjusting, easy to operate, easy to install and maintenance-free. It has a resistance to sewage. It is used in mines, oil, irrigation containers, etc.

Please feel free to contact us for Techinical Support, or Request a quote for float level sensors (customization available).

More Float Level Sensors

The Cable Float Level Switch is designed using the principles of gravity and buoyancy. Cable Float Level Sensor has a simple and reasonable structure. Including: A floating body. A large-capacity miniature switch set in the floating body.

A driving mechanism capable of turning the switch on and off. And a three-core cable connected to the switch. The outstanding feature of this product is its stable and reliable performance. Cable Float Level Sensor has no malfunction caused by the fluctuation of the liquid surface.

At the same time, it has the characteristics of convenient installation, low price and long service life. This product can be used with various liquid pumps, and automatic control of water levels in water supply, drainage and rotten liquids.

Features of SI-U05 Cable Float Level Sensor

Cable Float Level Sensor can be matched with various liquid pumps. And is widely used for automatic control of water levels in water supply, drainage and corrosive liquids.

Simple construction.
Reliable performance. The product can send switch control signals under normal conditions. Strong reliability.
Durable and long life.
Easy installation method. Convenient adjustment method. Adjustable water level control range.
Simple circuit. Economical and practical operating voltage 220v. Current 10A. Simple circuit and low cost.
Resistant to corrosion.

Specifications of SI-U05 Cable Float Level Sensor

Float Materia:	PP, SUS304
Contact Capacitance:	10A/250VAC(PP),2A/250VAC(SUS304)
Contact type:	1A,1B or 1AB(PP),SPDT(SUS304)
Cable specification:	Rubber cable and PVC(PP),Silicone:0.75mm²×3C(SUS304)
Suitable temperature:	Rubber cable: -10℃~80℃,PVC cable:0℃~60℃,Silicone: 0~170℃
Gravity:	>0.6g/cm³(PP),>0.5g/cm³(SUS304)
Lead length:	2m 3m 4m 5m 10m, etc. Other lengths can be customized
Applicable medium:	Clean water, sewage, oils and acid-base liquids below medium concentration

Applicaitons of Cable Float Level Sensor & Swtich

Water level monitoring
Tank level control
High or low level alarm
Municipal water control
Industrial water control
Filling or draining reservoirs and tanks
Pump automation
General pump control
Pump control in wastewater
Suitable for low specific gravity materials
Can handle high operating temperatures
Clean fluids with small process connections
Water and wastewater
Petrochemical
Chemical

Extended reading: Ultrasonic Level Switch-External Mounted

Working Principle of Float Level Sensor

The Cable Float Level Switch is with simple structure of using micro switch or proximity switch or reed switch to control the contact. And it is user friendly design for level measurement. The switches will send out ON or OFF contact signal output. The floating angle is larger than a certain degree. Then the state of the iron ball and reed switch will be changed for actuation. For wastewater and applications at different temperatures, the material of the float can be selected from plastic to stainless steel. Cable float level switch controls long distance and multi-point contact detection. Cable float level switch can be used for transparent liquid and granular liquid industries.

Float Level Sensor Installation

Pass the wire of the float switch from the concave circle of the center of the weight. Push the weight gently to make the plastic ring embedded above the round hole fall off due to the thrust of the wire head. You can also use a screwdriver to remove this plastic ring. Then put the dropped plastic ring on the cable to set the water level by the weight you want.
Gently push the weight to pull out the cable until the center of the weight holds the plastic ring. As long as the heavy hammer is lightly buckled in the plastic ring, it will not slip. If the plastic ring is damaged or lost, it can be replaced with a light bare copper wire into the cable.
Please pull the cable directly to the control box. Avoid using the intermediate connector as much as possible. If there is a connector as a last resort, never immerse the cable connector in the water.

Image source: https://instrumentationtools.com/cable-float-level-switch-working-principle/

Other types of Float Level Switches

**SI-U02 Multi-Point Liquid Level Float Switch**

**SI-U03 Float Switch Water Level Controller**

**SI-U04 Magnetic Float Level Sensor-Reed Switch**

Liquid level float switch is a commonly used liquid level controller. For water Tank & Pump alarm and level control. Can be divided into Continuous Float Level Sensor and Point Level Float Switch. Read more about Guide for Liquid level float switches.

Q&A

What is float level switch?
How do you adjust a float switch?
What is liquid level sensor?
How many types of level switches are there?

The float level switch is based on the principle of buoyancy. The float ball moves a distance with the liquid surface, and this movement plays a limit role. A magnetic floating ball is used to generate a switching action with a reed switch, output a switching signal, and then control the liquid level through wiring.

The float level switch only needs to re-calibrate the water level line before we install it. The switch itself cannot be adjusted. At this time, use a multimeter to measure the switch state, and it will be turned on and off with the water level near the waterline, which means that there is no problem. Just make sure that the water level line of the thermal equipment is consistent during the installation. For example, the liquid level switch of SOR is generally attached to the water level line on the wall of the cylinder. We soak the switch in the water tank and slowly sink, so that the water surface gradually approaches the marking line. When it is closest, we will hear the micro switch action the sound of.
It should be noted that the working temperature of the high-level liquid level switch is high, and the water temperature inside is also high; the density of high-temperature water is less than that of room temperature water. Therefore, the action line of room temperature water is lower than the switch identification line.
Low level alarm is connected to normally closed (NC), high level is connected to normally open (NO). This type of switch is not difficult to install. The liquid level switch itself will have more than two pairs of micro-switches, which respectively output two pairs of normally open and two pairs of normally closed contacts, which are usually “on alarm” when applied.

The liquid level sensor converts the liquid level signal in the container into a switching signal or a voltage and current signal, and then through an external circuit, allows the surveyor to accurately know the liquid level in the container.
There are 7 main types of level transmitters that Sino-Instrument offers. Each type of transmitter works in a different way, and makes it useful for different types of processes.

Level Transmitters

Liquid level switch, also known as water level switch, liquid level sensor. The liquid level switch is a switch used to control the liquid level. It is mainly divided into contact type and non-contact type. Capacitive liquid level switches are commonly used in non-contact switches. And contact float type liquid level switches are most widely used. Electrode level switches, electronic level switches, and capacitive level switches can also be implemented using contact methods.

There are currently 6 medium level switches:

Float level switch: The magnetic float of the float level switch rises or falls with the liquid level. So that the sensor detects the position of the reed switch chip in the tube, and sends a contact on / off switch signal. Because of its simple structure and economic benefits, it is widely used in the market, mainly for civilian use. But its stability is relatively poor compared to industrial-grade products.
Capacitive liquid level switch: After the probe is wetted, it detects the change in capacitance value and outputs a contact signal, which has certain advantages in the measurement of slightly viscous media.
Electrode type liquid level switch: The electrode type liquid level switch uses the conductivity of the liquid to detect the level of the liquid. Once the measured medium touches the pole, it will conduct electricity and detect the signal. After the signal of the controller is amplified, a contact signal is output to realize the control of the liquid level.
The photoelectric liquid level switch: The photoelectric liquid level switch uses infrared detection, using the principle of refraction and reflection of light. The reflection or refraction of light at the interface between two different media. When the measured liquid is at a high level, the measured liquid forms a kind of interface with the photoelectric switch. When the measured liquid is at a low position, air and the photoelectric switch form another interface. These two interfaces make the intensity of the reflected light received by the light receiving crystal inside the photoelectric switch different. That is, correspond to two different switching states. Generally speaking, compared with other measuring instruments, the applicability of photoelectric switches is poor.
Tuning Fork Liquid Level Switch: It outputs a switch signal by detecting the change in the frequency and amplitude of the fork’s vibration, which is highly versatile. For the viscous working conditions, please consult with the manufacturer to determine the working conditions that are easy to crystallize.
Ultrasonic external liquid level switch: The instrument probe emits ultrasonic waves and detects its residual vibration signal in the container wall. When liquid passes through the probe, the amplitude of this aftershock signal becomes smaller. This change is detected by the meter and outputs a switching signal. It is a non-contact type and is often used in high-risk situations where it is difficult to open holes on the site, but the cost is relatively expensive.

Techinical Support

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Case: High Temperature Radar Level Transmitter for Melted Salt-Solar Photovoltaic Power Station

Sino-Inst is float level sensor manufacturer. On the premise of ensuring product quality, we offer you the best price.

Sino-Instrument offers over 10 level transmitters for level measurement.

About 50% of these are liquid level meters,

40% is the tank level sensor.

A wide variety of level meters options are available to you,

such as free samples, paid samples.

Sino-Instrument is a globally recognized supplier and manufacturer of level measurement instrumentation, located in China.

Request a Quote

KimGuo11

drurylandetheatre.com

SI-U04 Magnetic Float Level Sensor-Reed Switch

Posted on February 19, 2020 by KimGuo11

Magnetic Float Level Switches & Sensors with Magnetic Reed Switches for Continuous Level Measurement.

Magnetic Float Level Sensor works with Reed Switch, is a continuous level sensor. SI-U04 Magnetic Float Level Sensor-Reed operatess on a direct, simple principle. As the magnetic float rises and falls as liquid levels change. The magnetic field generated from the inside of the float drives the sealed reed switch installed in the stem. The stem is made of non-magnetic metal or strong engineering plastic. Magnetic Float Level Sensor gets the liquid level signal, transfers it into digital current signal and switching signal. Generally speaking, there are two structures of magnetic floats. Besides, the Magnetic Float Level Sensor supports multiple mounting methods. Such as top-mounted, side-mounted. So SI-U04 Magnetic Float Level Sensor can be applied to a variety of tank level measurements.

Please feel free to contact us for Technical Support, or Request a quote for float level sensors (customization available).

More Float Level Sensors

Features of Magnetic Float Level Sensor

Simple structure, stable and reliable, good repeatability;
Realize the connection measurement of the liquid level
Not affected by the physical and chemical state of the measured medium. Such as: the effects of conductivity, dielectric constant, foam, pressure, temperature, evaporation, boiling, and bubbles;
Use different materials, which can be used in various strong and weak corrosion, flammable and explosive, toxic, strong radioactive, and foul media environments;
Liquid level measurement or interface measurement of two different density media;
Explosion-proof structure design, suitable for use in explosive environments.
Two-wire 4-20mA current output, with 0.56 “LED digital display, convenient for long-distance observation at night.

Applications of Magnetic Float Level Sensor

Industries:

Marine (commercial ships)
Petrochemical
Food/beverage
Water/wastewater
Chemical and textile industry
Dyeing and finishing
Level control in shipping industry

Applications:

Liquid level measurement in hostile environments
For use in many toxic and corrosive chemicals
Tanks where up to three switch points are needed
Situations where vertical space is limited]
Boilers and Process Vessels
Control of industrial processes and dosing tanks

Any liquids including water, oil, and chemicals：

Diesel or Lube Oils
Vegetable Oils
Petroleum products
Water, Wastewater
Acids
Caustics
Fuels

Specifications of SI-U04 Magnetic Float Level Sensor-Reed Switch

Measuring range	200~6000mm(>6M customize)
Resolution factor	10mm,5mm,20mm
signal output	4~20mA(two-line)2000/m(1/2″,3/8″)
Loading resistance	500Ω
Transmitting	>1000m
Working power supply	16~30VDC
Density	≥0.5g/cm3
Pressure	PN2.5~PN160(×0.1MPa)(Max pressure PN320)
Operating temperature	-40 ~ 80 °C, ≤120 °C, ≤150 °C
Float ball diameter	Φ30~Φ120(depending on pressure and density)
Flange installation	DN40~DN150/RF/PL(HG/T20592~2009) customize2” thread(downward install)1/2” thread (upward install, resistance signal output) 3/8” thread(upward install, resistance signal output)
Installation angle	≤±25°
Electrical connection	M20×1.5 female thread three-lines screening cable
IP grade	IP65
Explosion-proof grade	Exia II CT6Ga,EXd IICT6Gb

Extended reading: Food grade flow meters for Food & Beverage industry

Operation Principle of Magnetic Float Level Sensor

Magnetic Float Level Sensor is composed of a reed switch, a precision resistor and a single-chip microcomputer circuit. When the magnetic force line of the magnetic float acts on a certain position of the liquid level gauge, the reed switch in that position is closed. The magnetic float follows the level change of the liquid level (interface). Linear 4 ~ 20 mADC signal output and relay contact output. Realize the detection, transmission and alarm control of the liquid (boundary) surface position signal.
The magnetic float level sensor uses imported high-quality sensing elements and signal conversion devices, which has excellent long-term stability and reliability.

Types of Magnetic Float

Magnetic floating ball (column type)
1.фmm (321, 316L stainless steel)
2.ф40mm (4 fluorine on stainless steel)
3.ф50mm (PVC, PP)
Note: The specification is the diameter of the floating ball, and the length depends on the density of the medium.

Magnetic floating ball (through the core)
ф76 × ф21 × 76
ф51 × ф15 × 51
ф28 × ф10 × 28
ф63 × ф25 × L (mm) is made of PVC and PP. L is determined by the density of the medium, and the diameter can be made according to user requirements.

Other types of Continuous magnetic float level switches

Float level sensors are continuous level sensors featuring a magnetic float that rises and falls as liquid levels change. The movement of the float creates a magnetic field that actuates a hermetically sealed reed switch located in the stem of the level sensor, triggering the switch to open or close.
Float level sensor is composed of float, plunger and so on. The float level sensor is installed on the top of the container through the connection flange. The float floats on the liquid surface according to the principle of discharging the liquid volume phase and so on. When the liquid level of the container changes, the float also moves up and down. Due to the magnetic effect, the reed of the ball level sensor is magnetically attracted to change the position of the liquid level into an electrical signal. The actual position of the liquid is displayed digitally by a display instrument. The floating ball level gauge achieves long-range detection and control of the liquid level.

Learn more on Wikipedia

A magnetic float switch is a magnet fixed in a floating ball in the middle. Put the magnetic float on a stainless steel rod. Place a magnetic element (usually a reed switch) inside a rusty steel rod. When the levitation ball moves on a stainless steel rod, the magnetic elements will attract and break.

The purpose of a float switch is to open or close a circuit as the level of a liquid rises or falls. Most float switches are “normally closed,” meaning the two wires coming from the top of the switch complete a circuit when the float is at its low point, resting on its bottom clip or stop (for example, when a tank is dry).
Most float switches utilize a magnetic reed switch to open or close the circuit. The reed is encased in a glass tube, which is cemented into a plastic or stainless steel stem with epoxy. The illustration to the left demonstrates how a magnet can be used to open or close a circuit by moving it closer to or farther away from a reed switch. When the magnet comes close to the two contacts, they draw together and touch, allowing current to pass through. When the magnet is moved away, the contacts demagnetize and separate, breaking the circuit.
In a float switch, the magnetic reed switch is hermetically sealed in a stem, most often made from plastic or stainless steel. The float encases a sealed magnet, which moves up and down the length of the stem as a fluid level rises and falls.
As the magnet passes by the contacts in the encased reed switch, they draw together and complete a circuit between the two lead wires, as shown in the cutaway to the left.
The operation shown can usually be reversed by removing the bottom clip from the switch, inverting the float and replacing the clip. When this change is made, the switch circuit will be open when the float is resting on the bottom clip and closed when the float rises.
Properly used, float switches can deliver millions of on/off cycles, for years of dependable operation. Failures are normally due to overloading, frequently caused by spiking voltage.

Liquid level switch, also known as water level switch, liquid level sensor. Liquid level switch is used to control the liquid level switch. It is mainly divided into contact type and non-contact type. Capacitive liquid level switches are commonly used in non-contact switches, and contact float type liquid level switches are most widely used. Electrode level switches, electronic level switches, and capacitive level switches can also be implemented using contact methods.

Technical Support

**Level Senors for Tank Level Measurement**

**SI-100 Magnetostrictive Level Sensor**

**SI-LT Magnetostrictive level transmitter with Local Digital Display**

Magnetic float level sensor manufacturer

The float level sensor is a fully customized product. Different measurement needs will cause price changes. So before determining the price of the float level sensor, we need to confirm:
1. Junction box style

Connection method
Probe diameter
Float distance
Probe length
Material selection

Sino-Instrument is float level sensor manufacturer. On the premise of ensuring product quality, we offer you the best price.

Sino-Instrument offers over 10 level transmitters for level measurement.

About 50% of these are liquid level meters, 40% is the tank level sensor.

A wide variety of level meters options are available to you,

such as free samples, paid samples.

Sino-Instrument is a globally recognized supplier and manufacturer of level measurement instrumentation, located in China.

Request a Quote

Please enable JavaScript in your browser to submit the form

KimGuo11

drurylandetheatre.com

SI-U03 Float Switch Water Level Controller

Posted on February 14, 2020 by KimGuo11

Float Switch Water Level Controller for Continuous Liquid Level (interface) Measurement and Automatic Control. Explosion-proof and water proof.

SI-U03 Float Switch Water Level Controller

Float switches, also known as float level switches. Float Switch Water Level Controller is mechanical water level indicators that depend on moving parts to trigger a switch.

Float switch water level controller can be directly installed on various tank equipment (water tank). Float switch water level controller is especially suitable for hot heavy oil in oil refinery (temperature ≤500 ℃, pressure ≤4.0MPa). Viscous and dirty media, asphalt, grease and other oil products. As well as flammable, explosive, corrosive and other media’s Liquid level (interface) continuous measurement and automatic control.

Please feel free to contact us for Techinical Support, or Request a quote for float level sensors (customization available).

More Float Level Sensors

Float Switch Water Level Controller Features

It can be installed horizontally on the side wall of the barrel, or vertically on the top of the barrel;
The structure is simple and reasonable, the performance is stable and reliable, and the installation is convenient;
Both 220VAC and 24VDC circuits can be used;
The control part is completely isolated from the measured liquid medium, which can be applied to high temperature and high pressure environment;
A variety of materials (SUS304, SUS316, PP), a variety of connection methods can meet environmental needs;
Lightweight (compact type) and long working life.
Suitable for various tank installations.
Suitable for viscous dirty media;
Available in explosion proof and non-explosion proof

Specifications of SI-U03 Float Switch Water Level Controller

Type	SI-U03-A	SI-U03-B	SI-U03-C
Protection level	dIIBT4	dIIBT4	dIIBT4
Pressure	1.0 MPa	1.0 MPa	1.0 MPa
Tenperature(℃)	Normal：≤100℃ High Temperature：≤350℃
Net weight	1.5～2.0Kg
Switching difference(mm)	≤8	25～550	8～1000
Setting method	Not adjustable	Stepwise adjustable	Stepless adjustable
Installation form	Horizontal	Horizontal	Vertical
Power supply and contact capacity and life	AC：220V/1.5A、110V/2.5A DC：24V/2.5A、240V/0.5A Life：5×100^2

Know more about: Guide for Liquid level float switches

How to install float switch in water storage tank?

The flange of SI-U03 series electric float liquid level transmitter is installed on the side wall of the medium tank.
Before installation, it should be considered in combination with the structural characteristics of the transmitter. It is convenient to operate, observe and maintain to determine the installation position and direction. If the floating ball transmitter is installed on the left side of the flange, it is installed on the left side, otherwise it is installed on the right side.
Assume that the current state is the right installation. If you want to change to the left installation, use the HART Communicator to move or set the transmitter’s zero position and range.
And (PV range), follow the prompts on the HART communicator display to enter URV (upper range value). LRV (lower range value). And display USL (upper sensor limit)With LSL (Low Sensor Limit). Reset the lower range value corresponding to 4mA and the upper value corresponding to 20mA and send it. If other parameters are not changed, you can change to the left installation.
Floating ball and club installation: First, the floating ball and the club are tightened and welded. For the club installation operation of the new connection structure of SI-U03-A small-angle floating ball liquid level transmitter, the club is installed. Screw into the inner screw hole of the connecting rod at the end of the protective rod sleeve.
Pay attention to tighten the top wires on both sides of the connecting rod into the annular grooves on the club. And then tighten the lock nuts on the top wire. For SI-U03-B large-angle floating ball liquid level transmitter, screw the ball into the inner screw hole at the end of the swing arm. And then tighten the top wire and lock nut on it in the same way.
Note: “If the site conditions are poor, in order to prevent the floating ball, club, swing arm and other connecting parts from loosening. It is recommended to place the top wire and the lock nut on the joint and tighten the float and the club After welding directly to the coupling. “
The transmitter is directly installed on the flange of the side wall of the medium container under test through a flange. The requirements for the straight pipe section of the connection flange are as follows: SI-U03-A L ≤ 160mm;
The transmitter head is connected to the radiator through the connection plate. When installing, insert the spindle head into the coupling hole of the transmitter head, and the coupling should not be distorted. The meter head can be installed on the left or right side.
For correct installation, please refer to the indicator dial on the back of the transmitter case. If the transmitter is installed on the left, turn the end pointer behind the meter head to the “left 0” scale. If the transmitter is installed on the right side, turn the pointer on the back of the meter to the “right 0” scale line. And when the float is moved to the lowest measurement position, tighten the set screw of the coupling and the spindle.
Install the balance rod (mechanism) into the dental insert and square hole. Tighten the top wire to fix the balance rod. Loosen the shaft nut and adjust the dental insert to make the balance rod and the ball in the same plane. And put the axial head nut.
Tighten the position of the balance weight and adjust the balance weight to the optimal state to fix the balance weight. Note: “For liquids of different densities due to the different buoyancy forces experienced by the float, the balance can be adjusted. The position of the hammer on the balance bar to achieve the goal of normal measurement. “
In the process of adjusting the balance weight, when the feel is light, you can adjust the two M10 compression bolts of the waist-shaped compression sleeve inside the radiator to tighten the expansion force of the sealing gasket. Otherwise, you can adjust the waist-shaped compression sleeve when the feel is light Two M10 bolts loosen the expansion of the gasket until it does not leak!

How does a float switch water level controller work?

The float ball level switch structure is mainly designed and produced based on the principles of buoyancy and static magnetic fields. The position of the floating ball with a magnet (floating ball for short) in the measured medium is affected by buoyancy. The change of the liquid level causes the position of the magnetic float to change. The magnet in the float and the sensor (reed switch) function to generate a switching signal.

Similar to the principle of the float level sensor. But the float level sensor outputs a quasi-continuous electrical signal, while the float level switch outputs a discrete switching signal.

Water Tank Level Controller

Water level controller refers to the control of high and low water levels by mechanical or electronic methods. It can control solenoid valves, water pumps, etc., and become water level automatic controllers or water level alarms. To achieve semi-automation or full automation.

Commonly used water (liquid) level controllers include reed switch water level controllers, float magnetic switch liquid level controllers, electrode type water level controllers, pressure type water level controllers, etc.

Read more about: Types of water level controllers

Water Level Sensors for Water Tanks

Water level transducers are also called Water Level Sensors, or water level transmitters. Water level transducers are used to monitor water usage and quality. The water level signal is output through 4-20mA and other signals, which is convenient for people to monitor the water level.

There are many types of water level transducers. Common ones are input type, ultrasonic, radar and so on.

Sino-Inst offer a wide range of solutions with various pressure ranges, cable lengths and output options.

For remote monitoring and recording of water level data in groundwater pumping and sludge testing, stormwater flood analysis and runoff, and surface water irrigation canals, streams and river measurements.

Read more about: Types Of Water Level Sensors

Water Tank Level Control System

Water level control refers to the control of high and low water levels by mechanical or electronic methods. It can control solenoid valves, water pumps, etc. to become an automatic water level controller or water level alarm, thereby realizing semi-automation or full automation.

Water level control is generally used for high-level tank water supply and sump drainage. The device that converts the water level signal into an electrical signal to control the start and stop of the water pump is called a water (liquid) level controller. Commonly used water (liquid) level controllers include reed switch water level controllers, float magnetic switch liquid level controllers, electrode type water level controllers, pressure type water level controllers, etc.

Read more about: Water tank level sensor system

Generally, we can monitor the liquid level of the water tank remotely. You can choose wired or wireless remote monitoring.

Wired remote transmission, generally the output signal of the liquid level sensor. Such as 4-20mA, RS485 and so on. Through the signal line, the liquid level information can be displayed remotely.

Wireless remote transmission, generally a liquid level sensor through a wireless signal. The use of LORA debugging method and NB-IoT communication method can greatly increase the communication distance. It can be widely used in the field of short-distance Internet of Things wireless communication in various occasions. Real-time monitoring of on-site liquid level data, alarm processing, statistical analysis and other functions.

The appropriate remote water tank level sensor can be configured according to the actual needs of users.

Read more about: Wireless Level Sensor – LoRa

The principles of liquid level sensors may vary, and their applications vary widely. Electronic or mechanical, remote or on-site display, contact or non-contact, it’s dizzying.

In addition to the way of connecting the measured container to visually display the liquid level, the mechanical liquid level gauge is used. Another way to measure is to use the buoyancy of the liquid surface. So that the buoy or float can follow the change of the liquid level, which is converted into the display of the liquid level. These two methods are simple though. But very stable and reliable.

The biggest feature of the mechanical level gauge compared to its electronic level gauge is that the internal structure is very simple and the counting is intuitive. A variety of materials are available, which can achieve anti-corrosion and explosion-proof, and can adapt to various installation environments.

Magnetic flap level gauge, glass tube level gauge, glass plate level gauge, float level gauge, etc. These are the most widely used mechanical liquid level display instruments on the market. They are widely used in petroleum, metallurgy, chemical, paper and other industries.

What about electronic? Generally speaking, the ones that need power supply are basically electronic. Float, capacitive, radar, ultrasonic, remote magnetic flap including liquid level transmitter and so on.

It’s easy to tell them apart, whether it’s powered internally or externally, whether it’s 24V or 220V. In short, the electronic must be powered to work.

Unlike the mechanical type, the working principle of the electronic level gauge is varied. For example, the radar level gauge uses microwaves, the magnetostrictive level gauge uses current pulses, the static pressure type uses the pressure generated at the bottom of the measured medium, and the ultrasonic level gauge uses ultrasonic waves to measure the liquid level.

High precision, easy installation, and adaptability to various installation environments are the characteristics of electronic liquid level display instruments. Compared with the mechanical type, they have a higher level of technology, but at the same time, the price is much higher than the mechanical type.

External Tank Level Indicator refers to an externally mounted level sensor. It is used to install on the outside of the liquid storage tank to measure the liquid level of the tank. When measuring with External Tank Level Indicator, install the ultrasonic probe just below the outer wall (bottom) of the container under test. No need to cut holes, easy to install. Does not affect on-site production. It can realize accurate measurement of various toxic substances and various pure liquids in high temperature and high pressure airtight containers.

Frequently
Asked
Questions

Help Center

The Float water level sensor uses a float to track the rise and fall of the water level, and directly drives the record in a mechanical way. The use of the float water level sensor requires logging equipment (including the water inlet pipe), which is suitable for the low sandy river section with stable bank slope and little river bed erosion. The float water level sensor is widely used in China.

The price of the water level float switch is mainly determined by some parameters:
structure type;
Wetted material
Pressure Level;
Flange specifications
Explosion-proof type
temperature;
Measuring range;
Insertion length
Medium density
Other contents such as density, operating temperature, operating pressure, electrical interface, etc., must be specified in the specification so that we can use them as reference data when designing the output.

Water level float switch is generally used for high level water tank water supply and sewage tank drainage. The device that converts the water level signal into an electrical signal to control the start and stop of the pump is called a water (liquid) level controller. Common water (liquid) level controllers include:Reed switch water level controllers. Float magnetic switch liquid level controllers. Electrode type water level controllers. Pressure type water level controllers, etc.

Liquid level controller refers to the control of high and low liquid level by mechanical or electronic methods. It can control solenoid valves, water pumps, etc. to achieve semi-automatic or full automation. There are many methods, depending on the choice of different products different.

Extended reading: Capacitive water level sensor

Notes on installation and adjustment of float level switch:

Just make sure that the water level line of the thermal equipment is consistent during the installation. For example, the liquid level switch of SOR is usually attached to the water level line on the wall of the cylinder. We soak the switch in the water tank and slowly sink to make the water surface gradually approach the marking line. When you get closest, you will hear the micro switch the sound of.

Note that:
High-temperature liquid level switches, etc. have high operating temperatures and high water temperatures. The density of hot water is lower than the density of room temperature water, so the action line of room temperature water is lower than the switch marking line. Low level alarm is connected to normally closed (NC), high level is connected to normally open (NO). This type of switch is not difficult to install. The liquid level switch itself will have more than two pairs of micro-switches, which respectively output two pairs of normally open and two pairs of normally closed contacts, which are usually “on alarm” when applied.

Control the high and low water levels by mechanical or electronic methods. It can control solenoid valves, water pumps, etc. to become an automatic water level controller or a water level alarm, thereby realizing semi-automation or full automation.

Liquid level switch is a general term. There are many types of level switches. Such as ultrasonic liquid level switch, electrode liquid level switch, capacitive liquid level switch, etc. The float level switch is also one of them.

The float level switch is a controller used to control the detection and control of the water level.

The float level switch is a liquid level control part with a simple structure and convenient use. It has no complicated circuits and will not be disturbed. As long as the material is selected correctly, any liquid, pressure and temperature can be used.

Related Products

**Ultrasonic Oil Level Sensor-External Paste-Truck Fuel Tank**

**SIRD-701 Guided Wave Radar Level Senso**

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Sino-Inst offers over 10 Float Switch Water Level Controllers for level measurement. About 50% of these are liquid Float Switch Water Level Controllers, 40% is the tank level sensor.

A wide variety of Float Switch Water Level Controllers options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of level measurement instrumentation, located in China.

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KimGuo11

drurylandetheatre.com

SI-U02 Multi Level Float Switch

Posted on February 13, 2020 by KimGuo11

Multi level float switch is also called multi point level switch. Support 1-4 liquid level measurement switch point customization.

Multi level float switch is a custom multi point float level sensor & switch. These versatile level switches are available in many materials. Like: Stainless Steel, Brass & Buna, PVC, Polypropylene or PTFE and can be ordered with an integrated temperature sensor. Use these multi-level float switches with a tank level alarm or liquid level control relay for a turnkey solution. Explosion-proof available.

Call us now to talk with a sales engineer or fill out our easy to use request for quote form by following the steps below.

More Float Level Sensors

Features of SI-U02 Multi Level Float Switch

Can be used for multi-point control. The position of the control switch can be customized according to user needs.
No power is required to use the reed switch, and the life of the contact can reach 2 million times.
All the switch outlets are in the same junction box, and the external construction wiring cost is low.
Compared with other types of liquid level switches with multiple switch control points, the RF unit has the lowest unit price.
The protection level of the junction box is above IP-65.
It is made of PP and SUS316 metal, so regardless of acid and alkali liquid, solvent or various fuels, there are suitable products for use.
The magnetic reed switch is completely isolated from the wires and liquid. So it can be used safely on high temperature and high voltage equipment.
Connecting rod type float level switch set, suitable for high temperature and high pressure occasions.
60VA dry contact reed switch, can choose normally open or normally closed by floating ball installation position.
316 SS float, conduit and mounting interface, suitable for harsh environment.
American standard (NEMA 4X) polypropylene housing with rotatable base for electrical centering adjustment.
Customizable catheter length and switch set point size.

Specifications of SI-U02 Multi Level Float Switch

PP and PVDF materials are suitable for strong acid and alkali places; SUS304 / 316 metal materials are suitable for high temperature and high pressure tank
The most complete specifications of the junction box, including plastic, aluminum alloy, stainless steel explosion-proof type, protection level IP-65 or higher
Contact capacity 50W / 250VAC SPST or 40W / 250VAC SPDT
Connection flanges have JIS, DIN, ANSI specifications; teeth have NPT, PF, BSP and other specifications
Multi-point control, easy installation and cost saving
Length: 7.6Cm to 2.4m
Accuracy: ± 3mm
Repeatability: ± 1mm
Specific gravity: minimum 0.55
Installation position: vertical installation ± 30 degrees
Switch set point: 1-5 (factory setting)
Contact type: SPST reed
Contact capacity: 240VAC / VDC @ 60VA
Electric shock output: normally open
Working temperature: -40 degrees to 200 degrees
Ambient temperature: -40 degrees to 60 degrees
Installation height: 13.2Cm
Pressure: 13.8bar
Protection level: IP65
Housing material: PP.UL94VO
Terminal strip: 12 posts, socket
Electrical interface: 1/2 ”NPT
Installation interface: 2 “NPT
Grade: Universal
Certification: CE
Special specifications can be customized according to customer needs

Extended reading: Ultrasonic Level Switch-External Mounted

SI-U02 Multi Level Float Switch Types

In order to adapt to different measuring liquids, customers can choose different wetted materials.

Types	Wetted material	Operating temperature	Working pressure
Standard type	Stainless steel 1Cr18Ni9Ti, 304SS, 316L	-30 ~ 120 ℃	≤2.5MPa
Anticorrosive	Polypropylene PP	-30 ~ 80 ℃	≤0.4MPa
Corrosion-resistant	Teflon PTFE/PVC	-30 ~ 160 ℃	≤1.0MPa

How does a float level switch work ?

The Multi-Point Liquid Level Float Switch operates magnetically, without mechanical connections. And it is simple and reliable.

When the floating ball switch measures the floating medium of the test medium, the float moves the main body. And at the same time, the magnet on the other end of the float will control the magnet on the switch operating lever.

Set one or more reed switches in a closed metal or plastic tube. And then pass the tube through one or more, hollow and floating ring with ring magnet inside. And use the fixed ring to control the floating ball and the magnetic spring.

The switch is in the relevant position, which makes the float float up and down within a certain range. The magnet in the float is used to attract the contacts of the reed switch, which generates the opening and closing action.

More about: Float level sensor working principle

Applications of Multi-Point Liquid Level Float Switch

The Multi-Point Liquid Level Float Switch is suitable for:Control the pump operation to maintain the liquid level. Control the automatic loading and unloading of the tank. Control the liquid level or supply signals. Such as oil tanks, automatic cleaning systems, hydraulic tanks, low-pressure boilers, sewage treatment systems.

Shipbuilding Industry
Generator Facilities
Petrochemical Industry
Food/Beverage Industry
Waste Water/Water Purified Facilities
Electronic Industry
Dyeing and Finishing Industry
Chemical Industry
Rubber/ Plastic Industry
Hydraulic.

SI-U02 Multi Level Float Switch Dimension

Installation Precautions

Multi-core cables are recommended for wiring. The load of the controlled line must match the contact capacity of the float switch.
The installation position should be far from the water inlet, otherwise the switch will cause malfunction due to the fluctuation of the water inlet.
If the switch device is on the wall of the container, an L-shaped steel bracket can be added.
When the float switch is used in a circuit with an inductive load such as a motor, relay, solenoid coil, etc., it is recommended to protect the circuit in parallel at both ends of the load such as: RC (buffer), rheostat, diode, etc.
After the wiring is completed, please tighten the box cover and fix the connection port to ensure the junction box is waterproof.
The identification numbers on the terminal block of the terminal board correspond to the contacts of the floating balls from top to bottom.

More Featured liquid Level Sensors and Switches

**SI-U05 Cable Float Level Sensor & Swtich**

Sino-Inst offers over 10 level transmitters for level measurement.

About 50% of these are liquid level meters, 40% is the tank level sensor.

A wide variety of level meters options are available to you, such as free samples, paid samples.

Sino-Inst is a globally recognized supplier and manufacturer of level measurement instrumentation, located in China.

Request a Quote

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KimGuo11

drurylandetheatre.com

SI-U01 Float Level Sensor

Posted on February 12, 2020 by KimGuo11

Float Level Sensors with Magnetic Reed Switches for Continuous Level Measurement.

Float level sensor (float switch) is one type continuous level sensor for industrial level measurement. Float level sensor has a magnetic float that rises and falls as liquid level changes. The percentage of the liquid level, 4 ~ 20mA current and liquid level value, can be displayed on site. Applications like: water tank, fuel tank, level measurement and level control. Vertical, horizontal, and side mounted, all can be satisfied.

Please feel free to contact us for Techinical Support, or Request a quote for float level sensors (customization available).

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More Float
Level Sensors

Description of SI-U01 Float Level Sensor

SI-U01 float level meter is composed of three parts: magnetic float, sensor and transmitter. When the magnetic float changes with the liquid level, it floats up and down along the duct. The magnetic steel inside the float attracts the reed switch at the corresponding position in the sensor. So that the total resistance (or voltage) of the sensor changes. The changed resistance (or voltage) signal is converted into a current signal of 4-20mA and output. And the upper and lower limit alarms can be set on the display to achieve the position control of the liquid level.

SI-U01 floating ball liquid level gauge consists of a liquid level sensor and an intelligent HART board (current converter). The floating ball and the liquid level change synchronously, and the reed switch is controlled to open and close. This makes the resistance in the sensor change linearly. The change of resistance is converted by the converter into 4 ~ 20mA standard current signal or superimposed HART digital signal output.

Float level sensor can also be used with paperless recorder.

Features of SI-U01 Continuous Float Level Sensor

Intelligent electronic components are composed of a motherboard and an LCD screen;
You can adjust the range and zero point by pressing the button on the spot;
It can use HART communicator or microcomputer to communicate with this smart meter on both sides without interrupting the output signal.
It is suitable for explosion-proof or inconvenient installation and disassembly of the meter. Instrument measurement, process parameters, equipment configuration, calibration, diagnostic information HART protocol access or change;
Two-way communication with the host in the distributed control system using the HART protocol;
With EEPROM, no data is lost due to power failure.
Simple working principle, wide applicability, safe, convenient and maintenance-free
Realize the connection measurement of the liquid level without being affected by the physical and chemical properties of the measured medium. Such as: temperature, pressure, conductivity, dielectric constant, etc.
The use of different materials can achieve the measurement of highly corrosive media
It can be used to measure the interface of two different density liquids.
Good repeatability.

Specifications of SI-U01 Float Level Sensor

Max insert depth	L=6m(>6m customize)
Max control scope	L-120mm
Min control scope	50mm(<50mm customize)
Medium density	>0.5g/cm3
Working pressure	PN2.5~ PN160(Max pressure PN320)
Working temperature	-40~80 °C, -40~120 °C, -40~150 °C (250°C customize )
Float diameter	D28~D120(depending on pressure and density)
Installation type	Flange: DN40~DN150 Flange standard: HG/T20592~2009 (pressure>PN25, Flange>DN125) G2” thread Other method (consulting)
Maximum switch frequency	<1×105
Inaccuracy	±8±2mm
Working power supply	220VAC/380VAC
Max voltage of switch	<250VAC
Max current of switch	5A
Installation angle	< ±25°
Wiring box	M20×1.5 female thread
IP grade	IP65
Explosion-proof grade	Exd II CT6Gb

Float Level Sensor Operating Principle

Float level meter is an instrument for measuring liquid level. It is widely used in the field of liquid measurement. Many industries will choose to use it for measurement equipment. Such as the petroleum, chemical, and pharmaceutical industries.

Float level sensor is designed and produced based on the principle of buoyancy and static magnetic field. The position of a floating ball with a magnet (floating ball for short) in the measured medium is affected by buoyancy.

The change of the liquid level causes the position of the magnetic float to change. The role of the magnet and sensor (reed switch) in the floating ball changes the number of components (such as fixed resistance) connected in series to the circuit.

Thereby changing the electrical quantity of the instrument circuit system. That is, changes in the position of the magnetic float cause changes in the electrical quantity. The change of the electrical quantity is detected to reflect the liquid level in the container.

The float level sensor is installed on the top of the container through a connection flange. The float ball floats on the liquid surface according to the principle of discharging the liquid volume phase and so on.

When the liquid level of the container changes, the float ball also moves up and down. The reed switch of the ball level gauge is magnetically attracted to change the position of the liquid level into an electrical signal.

The actual position of the liquid is displayed digitally by the display instrument. The floating ball level gauge can achieve long-range detection and control of the liquid level.

Applications of SI-U01 Float Level Sensor

Float level sensors provide reliable readings in a range of operating environments.

Float level sensor can be widely used for continuous measurement of the liquid level (boundary level): High temperature. High pressure. Viscous, dirty media. Asphalt, wax-containing oil products and flammable, explosive, corrosive media.

Float level sensor can be used for industrial level measurement and control of various liquid tanks. Such as: Petroleum, chemical raw material storage. Industrial processes, biochemicals, medicine, food and beverage. Tank farm management and underground storage at gas stations.

The float level sensor is also suitable for dam water level, reservoir water level monitoring and sewage treatment, etc.

Of course, for different applications, you can choose different materials.

Such as:

Plastic materials PP and PVDF, suitable for strong acid and alkali places;

The metal material is SUS304 / 316L, which is suitable for high temperature 200 ℃ and high pressure 64kg/cm2.

Float level sensor Advantages and Disadvantages

Advantages

Long life span, stable and reliable operation, easy installation, almost no maintenance
None influence of measured medium in physical and chemical state. Eg: medium electrical conductivity, dielectric constants, foam, pressure, temperature, evaporation, boiling, bubbling effect etc, .
Choose appropriate material can be used in a variety of bad media environment with densities ≥ 0.5G/CC ;
Interface measurement with two media of different density control;
Wide range of application. Pressures from vacuum to PN160 (special up to PN320), temperature -40~+150 ° c
Design, explosion-proof, suitable for explosive environments;
Controller can be used to control the upper and lower liquid level.

Disadvantages

Low accuracy.
The installation position is limited by the shape of the container.
Most float level gauges are not suitable for corrosive or hazardous liquid media.

Float level sensor for water tank & fuel tank

In water treatment, the water tank float level switch is directly related to the safety and reliability of the entire process.

In a process, there are different types such as intermediate water tank, backwash water tank, produced water tank and waste liquid tank.

The sizes of these boxes are different. The volume of the produced water and the original water tank may be larger. In these water tanks, the water tank float level switch is used for related control.

Different level switches will have different actions. However, it is not necessary to have several level switches in a large water tank.

In the water tank, there are high and low level switches. The high level switch can detect whether the water tank is full. If it is full, the water production will stop. The low level switch is used to detect the water tank Is the water sufficient? If it is not enough, no more water can be sent out.

Water tank float level switch is a working condition word. If it is a large water tank, other level gauges can also be used to solve it. Like radar level gauges, ultrasonic level gauges, etc.

Of course, our float level sensor can also be used to measure and control the level of the fuel tank.

If it is used in an oil tank, special conditions such as the type of oil and corrosiveness need to be considered.

If you need to measure the level of the fuel tank. Please contact Sino-Inst sales engineers, we will provide you with suitable products and quotations based on your actual measurement situation.

Float Level Sensor for tank liquid volume monitoring

Our Float level sensors can output liquid level signals, such as 4-20mA signal, 0-10V signal, RS485 and so on.

However, the float level transmitter alone cannot calculate the liquid volume of tanks of different sizes. It’s too complicated. A separate recorder is required to calculate it.

Therefore, the digital display volume meter can collect, display and convert the liquid level of various regular and irregular tanks in the industrial field into the corresponding tank volume. It is suitable for monitoring, controlling and collecting various process parameters.

SI-U01 Float Leve Sensor Installation

The main float level sensor installation methods are:

Top mounted; Bottom mounted; Side mounted

SI-U01 Float level sensor installation instructions:

The measured medium should not contain ferromagnetic impurities.
In order to prevent the floating ball from falling off or hitting the sealing tube at high speed during transportation, which will cause the measuring tape to come out.
The meter should be fixed to the bottom of the sealed tube with a clamp and the magnetic steel on top of the sealed tube before the instrument leaves the factory.
Before installing and using, the user should remove the clamp. Raise the floating ball to the top of the sealing tube. And then slowly move the floating ball down, and the needle should be rotated accordingly.
The indicator of the meter is pointer type, the indicator numbers are arranged in the direction of gel needles during full-scale measurement, and the indicators are arranged in the counter-clockwise direction during emptyness measurement.
The instrument is equipped with a mounting flange when it leaves the factory. The user should have a pipeline flange.
The installation position of the instrument is generally selected at half of the measuring range.

Float level sensor price

Connection method
Probe diameter
Float distance
Probe length
Material selection

Sino-Inst is float level sensor manufacturer. On the premise of ensuring product quality, we will offer you the best price.

Frequently Asked Questions

Float level sensor uses magnetic float as the measuring element. Through magnetic coupling, the internal resistance of the sensor changes linearly. The smart converter converts the resistance change into a 4-20mA standard current signal. It can display the percentage of liquid level, the current of 4 ~ 20mA and the value of liquid level. Remote transmission control room can realize automatic detection, control and recording of liquid level. This instrument is suitable for petroleum, chemical, power, light industry and pharmaceutical industries, such as sewage treatment and medium level measurement in various atmospheric and pressure vessels, especially for underground tanks and tanks.

Float level sensor is composed of float, plunger and so on. The float ball level gauge is mounted on the top of the container through a connecting flange. The float floats on the liquid surface according to the principle of discharging the liquid volume phase and so on. When the liquid level of the container changes, the float also moves up and down. Due to the magnetic effect, the reed of the float level gauge is magnetically attracted and changes the liquid level position into an electrical signal. The actual position of the liquid is displayed digitally by the display instrument. The float level gauge thus achieves long-range detection and control of the liquid surface.

Liquid level switch, also known as water level switch, liquid level sensor. As the name suggests, it is a switch used to control the liquid level. It is mainly divided into contact type and non-contact type. Capacitive liquid level switches are commonly used in non-contact switches, and contact float type liquid level switches are most widely used. Electrode level switches, electronic level switches, and capacitive level switches can also be implemented using contact methods.

More about:

Liquid level float switch technology|continuous-point level

1. Float level switch: The magnetic float of the float level switch rises or falls with the liquid level. So that the sensor detects the position of the reed switch chip in the tube, and sends a contact on / off switch signal. Because of its simple structure and economic benefits, it is widely used in the market, mainly for civilian use. But its stability is relatively poor compared to industrial-grade products.
2. Capacitive liquid level switch: After the probe is wetted, it detects the change in capacitance value and outputs a contact signal. Which has certain advantages in the measurement of slightly viscous media.
3. Electrode type liquid level switch: The electrode type liquid level switch uses the conductivity of the liquid to detect the level of the liquid. Once the measured medium touches the pole, it will conduct electricity and detect the signal. After the signal of the controller is amplified, a contact signal is output to realize the control of the liquid level.
4. The photoelectric liquid level switch: The photoelectric liquid level switch uses infrared detection, using the principle of refraction and reflection of light. The reflection or refraction of light at the interface between two different media. When the measured liquid is at a high level, the measured liquid and the photoelectric switch form an interface. When the measured liquid is at a low level, air and the photoelectric switch form another interface. These two interfaces make the photoelectric switch internal light. The intensity of the reflected light received by the receiving crystal is different, that is, it corresponds to two different switching states. Generally speaking, compared with other measuring instruments, the applicability of photoelectric switches is poor.

5. Tuning Fork Liquid Level Switch: It outputs a switch signal by detecting the change in the frequency and amplitude of the fork’s vibration, which is highly versatile. For the viscous working conditions, please consult with the manufacturer to determine the working conditions that are easy to crystallize.
6. Ultrasonic external liquid level switch: The instrument probe emits ultrasonic waves and detects its residual vibration signal in the container wall. When the liquid passes through the probe, the amplitude of this residual vibration signal will become smaller. This change is detected by the instrument After that, a switching signal is output. It is a non-contact type and is often used in high-risk situations where it is difficult to open holes on the site, but the cost is relatively expensive.
The above is an introduction to the types of common level switches in the market. For more information about level switches (level switch, level switch), level meters (level meter, level meter) and other level measuring instruments, please contact us.

Extended reading: Ultrasonic Level Switch-External Mounted

Float switch is a kind of special switch. Because it does not need power supply to provide power, it is a very simple pressure switch. Its volume is small, the material is stainless steel or plastic, and the working life is very long. It has been widely used in water treatment.
The advantage of the float switch is that it can accurately measure the water level of the liquid. So it is generally used in the liquid detection of normal pressure or pressured storage tanks for signal transmission, such as liquid level alarm. Strong. It can accept multi-point control, and its use position can be left to the customer. It does not need a power supply to ensure its environmental protection. Its life is about 2 million switches. No matter the price of the product itself or the installation cost are very affordable, the price is very high. High degree of protection. It can work under high temperature or high pressure conditions, and has high safety.

If you cannot find an answer to your question in our Float Level Sensor, you can always contact us and we will be with you shortly.

Contact Support

Technical Support

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Sino-Ins is a manufacturer of Float Level Sensor. We provide more than 20 types of Float Level Sensors.

Float Level Sensor uses a magnetic floating ball as a measuring element. Through magnetic coupling, the internal resistance of the sensor changes linearly. The resistance change is converted into a 4~20mA standard current signal by an intelligent converter.

Float Level Sensor on-site liquid crystal display can display the percentage of liquid level, 4~20mA current and liquid level value on site. The remote supply control room can realize automatic detection, control and recording of liquid level.

Float Level Sensors can be widely used in the continuous measurement of high temperature, high pressure, viscous, dirty media, oil products such as asphalt, wax, and liquid levels (interfaces) of flammable, explosive, corrosive and other media.

Float Level Sensors can be used for liquid level industrial measurement and control of various liquid tanks such as petroleum, chemical raw material storage, industrial process, biochemical, pharmaceutical, food and beverage, tank farm management and underground storage of gas stations.

Float Level Sensors are also suitable for dam water level, reservoir water level monitoring and sewage treatment, etc.

Sino-Inst’s Float Level Sensors, made in China, have good quality, with better prices. Our Float Level Sensors are widely used in China, India, Pakistan, USA and other countries.

Sino-Inst’s entire team is well trained, so we can ensure that each customer’s needs are met. If you need any help with your product requirements, whether it is a Float Level Sensors, level sensors, or other equipment, please give us a call .

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KimGuo11

drurylandetheatre.com

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