ULT-200A Ultrasonic fuel tank level sensor

Posted on July 26, 2019 by KimGuo11

Ultrasonic fuel tank level sensor, also called non-contact fuel meter, is an electronic level transmitter, measuring continuous liquid level, fluid level, or oil level.

ULT-200A Ultrasonic Level Transmitter, taking the advantage of various many levels measuring instruments is a universal one characterized, by total digitalized and humanized design.

Fuel Tank Level Sensor has been an important product, in the Level Measuring Instruments market over the past year, and it was very popular in India, the United States, Saudi Arabia, Canada, and Malaysia.

New: SI-LT Magnetostrictive level transmitter with Local Digital Display

Features of Ultrasonic fuel tank level sensor

ULT-200A Ultrasonic fuel tank level sensor

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Sensor: Low power consumption, easy to install and locate, standard 4-20mA output, can be used as level gauge alone.
The probe can be made for IP68, anti-corrosion, explosion, small blind, low power consumption, large range 16 key operation.
Human-Machine communication can be more efficient.
Backup and recovery parameter set.
Measure for level, volume, weight.
Set a filter value to remove
Output HART, it can be direct communication with other instruments.
(Optional) Mini SD data collection and GPRS communication are optional.

Specifications of ULT-200A Ultrasonic fuel tank level sensor

Item	Split Type Ultrasonic Level Transmitter
Sense Range	3m; 5m; 8m; 10m; 12m; 15m; 20m; 25m; 30m
Blind Area	<0.3m-1.5m
Accuracy	±0.3%F.S
Display	LCD
Resolution	1mm
Keyboard	16 key
Output	4~20mA（standard）; 0~20mA; 1~5V; 0~5V; 0-10V; 1-10V; RS485; HART; 4 relays (Contact capacity AC:5A 250V DC:10A 120V)
Consumption	<8W
Material	ABS
Secondary Meter Dimension	240mm×184mm×110mm
Sensor Size	Φ41×100×Φ30 (for range:1 m); Φ55mm×119mm×G1 1/2 (for range:3 m); Φ74mm×135mm×M60 (for range:3~15 m)’ Φ109mm×200mm×M30 (for range: 16~35 m)
Installation Size	G1 1/2(3m); M60x2 (5-15m); M30X1.5 (20-30m)
Sensor Cable	10m (optional)
Operating Surroundings	normal temperature, normal pressure
Protection Degree	IP53 for instrument/ normal temperature, normal pressure

Working Principle of the ultrasonic level transmitter

Video source: https://www.youtube.com/watch?v=WY6Bj3f6piE

Extended reading: level sensors for fuel tanks

Ultrasonic fuel level sensors for challenging applications

All Sino-Instrument ultrasonic fuel level sensor models provide continuous, non-contact measurement (like radar), making them ideal for measuring fluids found in machine tools, like oil or hydraulic fluid, that cannot be tainted by the introduction of foreign materials.

Our ultrasonic fuel level measurement modules can be programmed to account, for oscillations and turbulence, that could otherwise lead to incorrect readings.

Measurement clear to the bottom of the tank can be realized.

Extended reading: Diesel fuel tank level gauges & indicators

Sino-Instrument’s ultrasonic tank level sensors feature an extremely broad operating temperature range.

They can operate in outdoor applications or extreme environments like commercial car washes, or outdoor fuel generators with no loss of performance or accuracy.

Tank Level Measurements

Sino-Instrument’s ULT series level transmitters offer cost-effective, continuous level measurement and a wide range of features, to handle almost any tank level management task.

Chemical Level Measurement

Many common chemicals can damage level sensors. Even stainless steel sensors can be quickly corroded by some chemicals.

Transducer elements and the adhesives that bond them to housings are especially susceptible to corrosive liquids and gases.

Special chemically resistant polymer housings are necessary for these environments.

Simply coated transducers or partially protected sensor housings may not offer enough protection.

Tank Level Display

A simple display will provide tank level in feet or meters.

With more advanced displays,

you can convert simple level measurements to engineering units like gallons, liters, pounds or kilograms.

Tank Level Alarms

Many tank level applications require alarms to be sounded when levels get above or below a certain point.

Tank Level Control

Ultrasonic level sensors may send measurements to a tank level controller, or ToughSonic sensors may control tanks directly using switches and relays.

Advanced Tank Level Measurements

Tank level measurements are sometimes complicated by conditions in the tank.

Structural obstacles such as supports or mixing equipment might be in the sensor measurement path.

Similarly, spray or foam can obscure the air-to-liquid interface that ultrasonic sensors detect.

These applications require more advanced sensor capabilities.

How many types of level sensors are there?

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.

Extended reading: What is a capacitive liquid level sensor?

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.

Magnetostrictive level sensor

Magnetostrictive level sensor, is the best choice for water level measurement, diesel tank level, and fuel tank level measurement.

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.

Learn more about Diesel fuel tank level gauges & Indicators

Featured Continuous level sensors

SI-U02 Multi-Point Liquid Level Float Switch

SI-U03 Float Switch Water Level Controller

SI-U04 Magnetic Float Level Sensor-Reed Switch

Sino-Instrument offers 20 ultrasonic level detectors products.

About 13% of these are ultrasonic level transducers, 4% are ultrasonic level indicators.

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

Sino-Instrument is the most important platform for Fuel tank level sensor product online wholesales,

they produce qualified Fuel tank level sensor and support OEM and customized designs.

Then How to choose a suitable Fuel tank level sensor products from Sino-Instrument?

Many customs rank power supply, and product name, accuracy as the most important factor,

For the power supply, you can choose dc24v, (standard 24vdc) and 12~36vdc.

The most important product name are level gauge, water level sensor, and diesel fuel tank level sensor,

The popular accuracy is 0.3%, 0.1% optional and 10mm.

Sino-Instrument is ultrasonic level transmitter suppliers, located in China.

Ultrasonic level detector products are most popular in North America, Mid East, and Eastern Europe.

The United States, and India, which export 99%, 1%, and 1% of ultrasonic level transmitter respectively.

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

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KimGuo11

Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.

Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.

drurylandetheatre.com

ULT-200 Ultrasonic Liquid Level Sensor

Posted on July 26, 2019 by KimGuo11

Ultrasonic Liquid Level Sensor can realize non-contact liquid level measurement. Continuous online monitoring of water level and sludge interface position.

ULT-200 Ultrasonic Liquid Level Sensor is a split type ultrasonic liquid level/level sensor. Measuring liquid level and converting it to an electrical signal. Non-contact liquid level measurement can be achieved. Split ultrasonic level gauges are widely used for liquid level and volume measurement of tanks, pools, and reservoirs. It can also be used for flow measurement in open channels.

Sino-Inst offers a variety of Ultrasonic Level Sensors for level measurement. If you have any questions, please contact our sales engineers.

Request a Quote

Ultrasonic Level Sensing

Features of Ultrasonic Liquid Level Sensor

The distance accuracy can be calibrated online in different environments, the start and end points of the range, and the type of analog output. The lock value of the liquid level window can be set by the keyboard.
Automatically track the ambient temperature to compensate for the distance value.
With 2-4 limit settings. Can be used for liquid level segment or position control (optional).
With RS485/232 serial data output or 4-20mA/0-20mA analog output or 1-5V/0-5V analog output (optional).
With “echo intelligent recognition” function and “medium slope” digital filtering function.
For Xiaotong’s measurement target, the user can set the detection cycle from 100 times to 0.1 times per second;
With the option of value-added/difference ranging mode, both ranging and position measurement can be performed.
It can be operated by keyboard. Turn on the backlight of the LCD display at night for easy viewing and debugging. You can also turn off the display during work to save energy.
It has 1-15 levels of transmission power options, which can be set and modified at any time according to the working conditions.
It has functions such as temperature compensation, window locking and anti-interference error correction, medium sound velocity adjustment (optional when ordering).
It has the function of arbitrarily digitizing the start and end of the full scale.
It has an artificial digital correction platform for temperature difference compensation in the acoustic wave transit area.
With 4mA, 20mA digital fine-tuning function, debugging is very convenient and quick.
When the LCD displays, the display information is very rich, from the level, weight, temperature, current, voltage, limit switch status and other information are all displayed on the LCD screen, so that the user can know the working status of the instrument.
Serial data transmission can be sent either point-to-point or bus type.

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

Specifications of ULT-200 Ultrasonic Liquid Level Sensor

Features	Split type
Range	5 meters, 10 meters, 15 meters, 20 meters, 30 meters, 40 meters, 50 meters, 60 meters, 70 meters,
measurement accuracy	0.5%-1.0%
Resolution	3mm or 0.1% (whichever is greater)
display	Chinese LCD
Analog output	4～20mA/510Ω load
Relay output	(Optional) Single channel is 2 groups, dual channel is 4 groups AC 250V/ 8A or DC 30V/ 5A state programmable
powered by	Standard 220V AC+15% 50Hz Optional 24VDC 120mA Customized 12VDC or battery power supply
Ambient temperature	Display instrument -20～+60℃, Probe -20～+80℃
Communication	Optional 485, 232 communication (factory agreement)
Protection level	Display instrument IP65, probe IP68
Probe cable	Up to 100 meters, standard 10 meters
Probe installation	According to the range and probe selection

Dimensions of ULT-200 Ultrasonic Level Detector

Extended reading: Radar Non Contact Water Level Sensor

Applications of Ultrasonic Liquid Level Sensor

River and reservoir level measurement
Tank measurement
Reservoir
Water tank water tower
Acid-base tank level monitoring
Reactor/tank/liquid level measurement
Manhole
Municipal Engineering
Tap water
Sewage treatment
Water Resources and Hydropower
Urban rivers and lakes, transportation and food processing industries
Sewage treatment plant: primary sedimentation tank, secondary sedimentation tank, thickening tank, etc.
Water supply plant: sedimentation tank
Coal washing plant: sedimentation tank
Power plant: mortar sedimentation tank, etc.

More about Application 1: Liquid Level Monitoring In The Food And Beverage Processing.

Ultrasonic Level Measurement Principle

How does ultrasonic level measurement work?

When Ultrasonic Liquid Level Sensor is working, high-frequency pulse sound waves are emitted by the transducer (probe). The surface of the measured object (water surface) is reflected. The returned reflected echo is received by the same transducer (probe) and converted into an electrical signal.

The time between the sending and receiving of the pulse (the movement time of the sound wave) is proportional to the distance from the transducer to the surface of the object. The relationship between the distance S of sound wave transmission and the speed of sound C and transmission time T can be expressed by the formula: S= CⅩT/2

Extended reading: Case Study: Automatic Sludge Blanket Level Detector

The installation of ultrasonic level meter must consider the blind area of ultrasonic level meter. When the liquid level enters the blind zone, the ultrasonic transmitter cannot measure the liquid level. Therefore, when determining the range of the ultrasonic level gauge, a margin of 50 cm must be left. When installing, the transmitter probe must be about 50 cm above the high liquid level. Only in this way can we ensure the accurate monitoring of the liquid level and the safety of the ultrasonic level gauge.

Pay attention to the mechanical installation:

The installation should be perpendicular to the surface of the object to be measured, avoid using it to measure foamy objects. Avoid installation where the distance from the surface of the measuring object is less than the blind spot distance. Blind spot: Each product has a standard, which is known with the product. It should be considered that the beam avoids the blocking material and does not meet the filling mouth and the container wall. When detecting large solid objects, the probe position should be adjusted to reduce the measurement error.

Extended reading: Guide to Ultrasonic Level Transmitters

More Featured Ultrasonic Level Sensors for Tanks

**Portable Ultrasonic Liquid Level Indicator**

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

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

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

Extended reading: Ultrasonic level transmitter for Hazardous Liquids

Ultrasonic Liquid Level Sensor Advantages and Disadvantages

The advantages of ultrasonic liquid level sensor are very outstanding. It is mainly reflected in the following aspects:

The structure is simple. The reading is convenient. It is very easy to install and maintain.
Safe and clean. The instrument has long service life. The measurement is stable and reliable with high precision.
Adopt non-contact measurement. It is not easily affected by the viscosity and density of the liquid.

Of course, the ultrasonic liquid level sensor also has its own limitations and insurmountable defects. Specifically, it is mainly manifested in:

There is a blind spot in the ultrasonic liquid level measurement. The dead zone is the area where the meter cannot measure. During the transmission of ultrasonic pulses, a small area near the ultrasonic transducer usually cannot receive sound waves. The blind zone where sound waves cannot be received is related to the measurement distance of ultrasonic waves. Generally speaking, the smaller the measurement distance, the smaller the blind zone. The larger the measurement distance, the larger the blind zone;
Ultrasonic liquid level measurement is easily affected by temperature. In the actual measurement, the change of temperature will cause the change of sound speed. This will lead to errors in the measurement;
There should be no obstacles under the sound wave. Because the ultrasonic liquid level meter uses the principle of sound wave reflection to achieve liquid level measurement. If there are obstacles, it will affect the ultrasonic emission, causing signal loss and affecting the measurement effect;
Ultrasonic liquid level sensor should not be used to measure pressure vessels. Because the pressure mainly affects the probe. There is also a certain relationship between the pressure and the temperature. The change in pressure will affect the change in temperature. This will affect the change in the speed of sound. The accuracy of the measurement will be affected;
Ultrasonic liquid level sensor can not be used in the occasions with water mist, medium that is easy to produce a lot of foam, and volatile medium. Because this kind of working condition is easy to absorb the sound wave or interfere with the sound wave emission, the signal is lost and the accuracy is reduced;
Ultrasonic liquid level sensor is greatly affected by dust. This is because although the dust environment has little effect on the speed of sound, it has a very significant effect on the attenuation of sound waves. Therefore, it is best not to use an ultrasonic level gauge in the presence of dust.

Extended Reading: Procurement Guide for Ultrasonic liquid level sensors

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Sino-Inst offers 20 ultrasonic level detectors products. About 13% of these are ultrasonic level transducers, 4% are ultrasonic level indicator. A wide variety of Ultrasonic liquid level sensor options are available to you, such as free samples, paid samples.

Sino-Inst is ultrasonic level transmitter suppliers, located in China.

UltraUltrasonic liquid level sensor products are most popular in North America, Mid East, and Eastern Europe. The United States, and India, which export 99%, 1%, and 1% of ultrasonic level transmitter respectively. You can ensure product safety by selecting from a certified supplier, with ISO9001, ISO14001 certification.

Request a Quote

Please enable JavaScript in your browser to submit the form

KimGuo11

drurylandetheatre.com

TKWL-1600 Ultrasonic Level Transducer

Posted on July 26, 2019 by KimGuo11

Ultrasonic Level Transducer, also called Ultrasonic level sensor, or ultrasonic level transmitter.
Ultrasonic level meter (measuring material level, liquid level) is a non-contact, highly reliable, cost-effective, and easy-to-install and maintain level measuring instrument. It can meet most of the level measurement requirements without contacting the medium.

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Features
Specifications
Applications

Features of Ultrasonic Level Transducer

The large measuring range can reach 40m, and the solid material level measurement can reach 25m.
The small resolution is 1mm.
Large LCD/LED display.
Intelligent signal processing technology.
All plastic anticorrosive shell: protection grade IP67.
Transducer structure: There is no requirement for flange connection length when the small range level meter is flanged.
Simple button setting parameters: no need to wait for the container to empty or fill up, no need for an additional remote control.
Flexible installation methods: thread (flange), fixed hole (bracket).
The probe can be extended: it is suitable for outdoor installation in a closed container in cold areas to prevent frost.
Equipped with high and low double relays: the four-wire system provides this function.
AC and DC power supply forms are optional: four-wire system and split machine mainframe provide this function.

Ultrasonic level gauge and other level gauge technologies

Compared with laser ranging technology, it has the advantages of simplicity and economy;
Ultrasound technology generally does not require moving parts, so installation and maintenance are relatively convenient;
Ultrasonic level meter can not only fix point and continuous position measurement, but also can conveniently provide signals required for remote measurement or remote control;
Compared with the radioactive location technology, the ultrasonic level meter does not require protection.

Technical characteristics

Transducer with strong emission power. The surface can be self-cleaning. The use of updated transducer structure and manufacturing technology. The working performance of the transducer is significantly improved.
Microprocessor program control and intelligent signal processing technology can realize a variety of typical working condition software processing modes. The level meter can adapt to complex working conditions such as solids, liquids, and dust.
Infrared remote control programming adjustment, simple and reliable operation, and with LCD on-site display.
Non-contact continuous measurement, reducing maintenance;
It can be used to measure level, space and distance, and can also perform automatic level-volume conversion for standard or special switch tanks;
The LCD with backlight can display according to standard engineering units.

Specifications of Ultrasonic Level Transducer

Features	Integral type	Split type
Range	5 meters, 10 meters, 15 meters, 20 meters, 30 meters, 40 meters, 50 meters, 60 meters	5 meters, 10 meters, 15 meters, 20 meters, 30 meters, 40 meters, 50 meters, 60 meters, 70 meters,
measurement accuracy	0.5%-1.0%	0.5%-1.0%
Resolution	3mm or 0.1% (whichever is greater)	3mm or 0.1% (whichever is greater)
display	Chinese LCD	Chinese LCD
Analog output	4-wire 4~20mA/510Q load; 2-wire 4~20mA/250Q load	4~20mA/510Q load
Relay output	Optional 2 groups of AC250V/8A or DC; 30V/5A state programmable	(Optional) Single-channel is 2 groups, dual-channel is 4 groups AC250V/8A or DC30V/5A state programmable
powered by	Standard 24VDC; optional 220VAC+15%50Hz	Standard 220VAC+15%50Hz; optional 24VDC120mA; customized 12VDC or battery power supply
Ambient temperature	Display instrument -20~+60℃, probe -20~+80℃	Display instrument -20~+60℃, probe -20~+80℃
Communication	Optional 485,232 communication (manufacturer agreement)	Optional 485,232 communication (manufacturer agreement)
Protection level	Display instrument IP65, probe IP68	Display instrument IP65, probe IP68
Probe cable	no	Up to 100 meters, standard 10 meters
Probe installation	According to the range and probe selection	According to the range and probe selection

Ultrasonic level meter application

Liquid level and material level measurement is a problem frequently encountered in the industry. Ultrasonic positioning technology has many advantages. It can not only fixed-point and continuous positioning. And it can conveniently provide signals required for telemetry or remote control.

Compared with radioactive location technology, ultrasound technology does not require protection.
Compared with laser-ranging technology, it has the advantages of simplicity and economy.
At the same time, ultrasound technology generally does not require moving parts. Therefore, it is relatively convenient to install and maintain.

Ultrasonic level gauges can be widely used in petroleum, mining, power plants, chemical plants, water treatment plants, sewage treatment stations, agricultural water, environmental monitoring, food (brine industry, beverage industry, additives, edible oil, dairy products), flood control Flood prevention, hydrological monitoring, open channels, spatial positioning, and many other industries.

Learn More: Sanitary ( hygienic ) Pressure Transmitter

Magnetostrictive level sensor

What is ultrasonic level measurement?

Ultrasonic waves detect an object in the same way as Radar does it.

Ultrasonic uses sound waves, and Radar uses radio waves.

When the ultrasonic pulse signal is targeted towards an object, it is reflected by the object, and the echo returns to the sender.

The time traveled by the ultrasonic pulse is calculated, and the distance of the object is found.

Bats use a well-known method to measure the distance while traveling.

The ultrasonic level measurement principle is also used to find out fish positions in the ocean, locate submarines below water level, also the position of a scuba diver in the sea.

Level = Speed of sound in air x Time delay / 2

Ultrasonic level transducer working principle

During level measurement. The ultrasonic signal is sent out by the ultrasonic probe. Fold back after being reflected on the surface of a liquid or solid material. It is received by the same probe and measures the entire running time of the ultrasonic wave, so as to realize the level measurement. The relationship between sound wave transmission distance and sound speed and sound transmission time can be expressed by the formula:

The calculation formula of the ultrasonic level meter The calculation formula L of the ultrasonic level meter: the distance between the ultrasonic probe and the measured material surface. Unit: m;

v: Sound velocity value after temperature compensation. Unit: m/s;

t: The running time of the sound wave in the measuring range. Unit: s

Extended reading: The Secret of Ultrasonic Level Measurement

Introduction to the main indicators of Ultrasonic Level Transducer

Range.
It represents the large range that the ultrasonic level meter can measure and reflects the sensitivity of the transducer.
The larger the range, the higher the sensitivity.
The ultrasonic level meter can be equipped with transducers of different ranges such as 4, 6, 8, 10, 20, 30m.
When the ultrasonic attenuation is fast and the interface reflection is poor. In order to avoid the ultrasonic signal received by the ultrasonic probe is too weak. If it cannot be distinguished from the noise signal, it is necessary to increase the transmitting power of the transducer.
Blind area.
It is also called the dead zone, which is a distance that cannot be measured by the ultrasonic level meter.
When the ultrasonic level meter transmits ultrasonic pulses, it cannot detect the reflected echo at the same time.
Because the transmitted ultrasonic pulse has a certain time width. At the same time, the sensor still has after-vibration after transmitting the ultrasonic. During this period, the reflected echo cannot be detected. Therefore, a small distance from the probe surface downward cannot be detected normally, and this distance is called a blind zone.
For products with the same measuring range, the smaller the blind zone, the better the design of the transducer.
Temperature.
The normal range is -10~60 degrees Celsius.
Although the limit working temperature of piezoelectric ceramics is generally 150 degrees Celsius. However, most of the materials in the manufacturing process of the ultrasonic level gauge cannot work for a long time at a temperature above 100 degrees Celsius.
Precision.
It is mainly affected by temperature changes to ensure measurement accuracy. Most ultrasonic level meters are equipped with temperature compensation.
In addition, changes in the gas composition will also affect the accuracy of the ultrasonic level gauge. For example, some volatile liquids. After volatilization, the air composition changes and the sound velocity of the gas changes, causing measurement errors. Most manufacturers can control the accuracy within 0.5% under normal temperature and pressure and without interference from the external environment.
Two-wire system and three-wire system.
The power supply (DC24v) and signal output (DC4-20mA) of the two-wire ultrasonic level meter share the same circuit. That is, only two wires are used. The disadvantage is that the transmit power is relatively weak.
The three-wire ultrasonic level meter is actually a four-wire system. Its power supply (DC24v) and signal output (DC4-20mA) loops are separated. Two wires are used for each. When their negative ends are connected to the common ground, three wires are usually used . Its advantage is that the transmit power is larger.

Extended reading: Applicaitons Of Magnetostrictive Level Transmitters

Ultrasonic Level Transducer measurement influencing factors

Various factors will affect its stable and reliable measurement when it is actually used in the field. Below we will combine the actual situation to describe the influence of various interferences on the selection, use and installation of ultrasonic level meters.

(1) The influence of medium and ambient temperature

When the ultrasonic wave is reflected from the surface of the material, its reflection frequency will be affected by the temperature of the material and change. In order to compensate for this change, a temperature sensor is installed in the ultrasonic probe. When the probe sends the reflected signal to the processor at the same time. The temperature signal is also sent to the microprocessor, and the processor will automatically compensate for the influence of temperature on the level measurement.

In addition, in order to ensure the reliable operation of the probe, it is required that the ambient temperature does not exceed 60°C.

(2) The influence of the agitator on the measurement of the level meter

If the material container is equipped with a stirrer, it will also reflect the ultrasonic signal, causing false reflection echo, which is transmitted to the microprocessor.

The microprocessor will process the true and false mask echoes based on statistical principles, so it is required that the echo reflected by the ultrasonic wave from the surface of the material should be at least 3 times the echo reflected from the stirrer arm.

Appropriately reduce the speed of the stirrer, or move the probe away from the stirring center. Both can effectively eliminate the influence of the false surface reflection produced by the agitator on the level measurement.

(3) Ultrasonic level meter measures the limit value of the material level

1) High material level

When an ultrasonic pulse is transmitted to the surface of the material, if it receives a reflected wave from the surface of the material, it will not be able to measure, and this distance is a blind zone. The material level shall not be higher than the blind zone.

2) Low material level

The di level is the distance from the sensor that the ultrasonic wave can reach. And the reflected echo can be received by the sensor. Due to the attenuation of ultrasonic waves in the propagation process and the absorption of sound waves on the surface of the material, this propagation distance is strongly dependent on the nature of the material.

In short, as long as the instrument is selected and installed properly, the application effect of the ultrasonic level gauge is quite satisfactory.

Extended reading: How to Choose the Right Diesel Fuel Level Sensor?

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Radar Level Measurement System for High-Temperature Blast Furnace. This article is a case introduction for…

Sino-Instrument offers 20 ultrasonic level transducers products.

About 13% of these are ultrasonic level transmitters, 4% are an ultrasonic level indicator.

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

Sino-Instrument is an ultrasonic level transmitter supplier, located in China.

Ultrasonic level transducer products are most popular in North America, Mid East, and Eastern Europe.

The United States, and India, which export 99%, 1%, and 1% of ultrasonic level transmitters respectively.

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

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KimGuo11

drurylandetheatre.com

Differential Pressure Flow Meters

Posted on July 25, 2019 by KimGuo11

Differential Pressure (DP) Flow Meters Technology –
Reliable Flow Solutions Across Many Applications

Differential Pressure Flow meters, also known as DP flow meters. Differential Pressure (DP) flow meters introduce a constriction in the pipe, that creates a pressure drop across the flow meter.

The calculation of fluid flow rate, by reading the pressure loss across a pipe restriction, is the most used flow measurement technique in industrial applications.

Differential pressure flow meters are suitable for water flow measurement, oil, steam or gas flow measurement.

According to different flow senor structures, we have:

Orifice Plate Flowmeters;
Venturi Flowmeters;
Nozzle Flowmeters;
Wedge Flowmeters;
Annubar Flowmeter

And more.

RFQ NOW

What is a differential pressure flow meter?

You can take this as the definition of the differential pressure flow meter.

Differential pressure flow meters, also known as DP flowmeters, create a cross-sectional change in the flow tube, which causes the velocity of the flowing fluid to change.

A change in velocity occurs whenever there is a change in flow cross-section; ie, With a decrease in velocity, an increase in pressure occurs.

Differential pressure flow meters can be used as liquid flowmeters or gas flowmeters; however, a single flow meter may not be configured to measure both liquid and gas phases.

Differential pressure (also known as throttling) Flow meters, are based on the throttling principle of fluid flow. It is one of the most mature and most commonly used methods for measuring flow in production. It is usually composed of a throttling device, which capable of converting the measured flow into a differential pressure signal, and a differential pressure gauge, and a display instrument, capable of converting the differential pressure into a corresponding flow value.

In the unit combination meter, the differential pressure signal generated by the throttling device, is often converted to a corresponding standard signal (electrical or pneumatic), by a differential pressure transmitter for display, recording or control.

The differential pressure flow meter is composed of a primary device (detection member), and a secondary device (a differential pressure converter and a flow display instrument).

Types of flow meter

The differential pressure flow meter is usually classified in the form of a test piece, such as an orifice flowmeter, a venturi flowmeter, a constant velocity tube flowmeter, a pitot tube principle-Pitoba flowmeter, and so on.

The secondary device is a variety of mechanical, electronic, electromechanical integrated differential pressure gauges, differential pressure transmitters and flows display instruments.

It has developed into a large-scale instrument with a high degree of categorization (series, generalization, and standardization) and a wide variety of specifications.

It can measure flow parameters as well as other parameters (such as pressure, level, density, etc.).

How does a differential pressure flow meter work?

Differential pressure flow meters use Bernoulli’s equation, to measure the flow of fluid in a pipe.

Differential pressure flow meters introduce a constriction in the pipe, that creates a pressure drop across the flowmeter.

When the flow increases, more pressure drop is created. Impulse piping routes the upstream and downstream pressures of the flowmeter to the transmitter, that measures the differential pressure to determine the fluid flow.

This technology accounts for about 21% of the world market for flow meters.

Bernoulli’s equation states that the pressure drop across the constriction is proportional to the square of the flow rate. Using this relationship, 10 percent of full-scale flow produces only 1 percent of the full-scale differential pressure.

At 10 percent of full-scale flow, the differential pressure flowmeter accuracy is dependent upon the transmitter, being accurate over a 100:1 range of differential pressure.

Differential pressure transmitter accuracy is typically degraded, at low differential pressures in its range, so flowmeter accuracy can be similarly degraded.

Therefore, this non-linear relationship can have a detrimental effect on the accuracy, and turn down of differential pressure flow meters.

Remember that of interest is the accuracy of the flow measurement system — not the accuracy of the differential pressure transmitter.

Different geometries are used for different measurements, including the orifice plate, flow nozzle, laminar flow element, low-loss flow tube, segmental wedge, V-cone, and Venturi tube.

Differential pressure flow meter formula:

where

points 1 and 2 lie on a streamline,
the fluid has constant density,
the flow is steady,
and there is no friction.

Although these restrictions sound severe, the Bernoulli equation is very useful, partly because it is very simple to use. And partly because it can give great insight into the balance between pressure, velocity, and elevation.

To learn more about DP Flow:

Extended reading: Smart Differential Pressure Transmitter

Advantages and disadvantages of differential pressure flow meter

The upside of this technology is low cost, multiple versions can be optimized for different fluids and goals, are approved for custody transfer (though it is being used less and less for this). It is a well-understood way to measure flow. And it can be paired up with temperature/pressure sensors, to provide mass flow for steam and other gasses.

Negatives are that rangeability is not good due to a non-linear differential pressure signal (laminar flow elements excepted), accuracy is not the best and can deteriorate with wear and clogging.

Advantages and disadvantages of throttling differential pressure flow meter (orifice flowmeter)

Advantages:

1) The standard orifice plate structure of the throttle piece is easy to copy, simple, firm, stable and reliable in performance, long in service life and low in price;

2) The throttling application range is extremely wide. All single-phase fluids, including liquid, gas, and steam, can be measured. Some mixed-phase flows, such as gas-solid, gas-liquid, liquid-solid, etc. can also be applied. General production processes and pipe diameters, The working condition (pressure, temperature) has products;

3) All accessories can be used by all manufacturers if it is an international standard and can be used without calibration.

Disadvantages:

1) The repeatability and accuracy of the measurement are medium levels;

2) The range is narrow because the meter signal and the flow rate are squared, the general range can only reach 3:1 ~ 5:1;

3) The requirements for on-site installation conditions are relatively high. If a long straight pipe section is required, it is difficult to meet;

4) The pressure piping is a weak link, which is prone to leakage, blockage, freezing and signal distortion;

5) The pressure loss is large.

Extended reading: Integral DP Flow Meter|Gas, liquid, steam|Compact structure

What is the relationship between flow and differential pressure?

Differential pressure use Bernoulli’s equation to measure the flow of fluid in a pipe.

Differential pressure flow meters introduce a constriction in the pipe, that creates a pressure drop across the flowmeter.

When the flow increases, more pressure drop is created.

y+P(x)y =Q(x)y^n (equation)

is called a Bernoulli differential equation where n is any real number.

The graph below shows the resulting pressure drop for water at 60 F, over a range of flow rates for a 100-foot long pipe, for both 4 inches and 6-inch schedule 40 piping.

the relationship between flow and differential pressure

If you need, you can learn more about Flow Rate And Pressure Relationship.

How to Select a Flow Meter?

The basis of good flow meter selection is a clear understanding of the requirements of the particular application.

Therefore, time should be invested in fully evaluating the nature of the process fluid and of the overall installation.

What is the fluid being measured by the flow meter(s) (air, water, etc…)?
Do you require rate measurement and/or totalization from the flow meter?
If the liquid is not water, what viscosity is the liquid?
Is the fluid clean?
Do you require a local display on the flow meter or do you need an electronic signal output?
What are the minimum and maximum flow rate for the flow meter?
What are the minimum and maximum process pressure?
What are the minimum and maximum process temperature?
Is the fluid chemically compatible with the flow meter wetted parts?
If this is a process application, what is the size of the pipe?

Types of Differential Pressure Flowmeters

Flat metal plate with an opening in the plate installed perpendicular to the flowing stream in a circular pipe.

As the flowing fluid passes through the orifice, the restriction causes an increase in velocity and a decrease in pressure.

A differential pressure transmitter is used to measure pressure between the orifice and the pipe flow stream.

There is always a permanent pressure loss. No dirty liquids allowed.

Orifice differential pressure flowmeters can be constructed to measure gas, liquid or steam.

Orifice plates are primary flow elements which measure flow as a function of differential pressure.

A restriction with a relatively long passage having a smooth entry and exit.

A venturi produces less permanent pressure loss than an orifice but is more expensive.

They are often used in dirty streams because there is no build-up of the foreign material.

Venturi flow meters can be constructed to be either gas flowmeters or liquid flow meters.

Extended reading: What Is A Venturi Flow Meter?

Smooth entry and sharp exit. Permanent pressure loss is on the same level as an orifice, with the added ability to handle dirty and abrasive fluids.

A differential pressure transmitter is used to measure pressure between the nozzle and the pipe flow stream.

This type of differential pressure flowmeter technology can be constructed to measure either gas or liquids.

Extended reading: What is a flow nozzle?

A device consisting of a Pitot tube and an annubar tube combined with static pressure ports.

The differential pressure between the two ports is the velocity head.

A differential pressure transmitter is used to measure pressure differential between the two ports.

This indication of velocity combined with the cross-sectional area of the pipe provides an indication of flow rate.

Pitot tube flow meters can measure either liquids or gases.

Differential pressure is caused by centrifugal force between the inside diameter and the outside walls of the pipe elbow.

It does not introduce any additional pressure loss other than that caused by the elbow.

A differential pressure transmitter is used to measure pressure between the walls.

This type of flow meter technology can be configured as either a gas or a liquid flow meter.

A wedge-shaped element that is perpendicular to the flow at the top of the conduit which means that the bottom part is unrestricted.

Therefore, it is useful in slurry measurement.

A differential pressure transmitter is used to measure pressure between either side of the wedge.

However, this type of differential pressure flow meter technology can be constructed to work as either a gas or a liquid flow meter.

Consists of a V-shaped cone element placed at the center of the pipe which creates an annular space for the passage of fluid.

It has a lower permanent pressure loss than orifice flowmeter.

The cone element conditions the flow at the same time it is creating the pressure differential, providing for smoother and less noisy differential pressure readings vs. the orifice technology.

A differential pressure transmitter is used to measure pressure before and after the cone.

This type of differential pressure flow meter can be constructed to measure gases, liquids, or steam.

This type of flow meter relates a change in flow rate to the differential pressure across a spring-loaded cone.

The cone repositions itself to balance the force.

This, in turn, changes the aperture for the flow.

Flow rate has a relationship with the differential pressure of the flow meter and the position of the spring-loaded cone.

A differential pressure transmitter is used to indicate flow.

This type of differential pressure flow meter technology can be constructed to measure either gas or liquids.

Flow rate is linearly proportional to the differential pressure and inversely proportional to the viscosity of the flowing fluid.

A flow can be made laminar by passing through a bundle of small diameter tubes.

A differential pressure transmitter is used to measure pressure before and after the tubes.

This type of differential pressure flow meter technology can be constructed to measure either gas or liquids.

Featured DP Flow Meters for Sale

LD series Rigid Probe Magnetostrictive Level Transmitter

Posted on July 24, 2019 by KimGuo11

Magnetostrictive level transmitter also known as Magtech LTM Level Transmitter. The magnetostrictive level transmitter realizes continuous liquid level measurement of the tank.

Magtech magnetic level indicator is Emerson’s name for magnetostrictive liquid level transmitter. Magnetostrictive liquid level gauge can perform continuous liquid level and interface measurement. The magtech magnetic level indicator uses magnetostrictive technology to measure the liquid level. The measured value is then transmitted back to the control system.
LD series magnetostrictive level sensor adopts hard measuring rod. Can be used with a variety of floats. With the flange, the liquid level sensor is installed in any liquid tank, filling and metering machinery.

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

More Magnetostrictive Level Measurement

Features of LD series Magnetostrictive Level Transmitter

LD series rigid rod-type liquid level sensor is sturdy and reliable. It is easy to install and does not need daily maintenance and calibration. Stainless steel measuring rods and floats are not affected by the physical and chemical properties of the liquid medium.

No matter the liquid medium has steam, foaming, condensation, foam, boiling, corrosion. Or there is special conductivity, dielectric constant, pressure And vacuum environment. The sensor can be unaffected, accurate, real-time transmission of level signals over long distances. Under special circumstances, Teflon coating can be applied externally.

The sensor can be installed directly or through flange in any common liquid tank and metering equipment. Double float measurement is available. One float measurement liquid / liquid interface and one float measurement liquid / vapor interface.

● Sturdy and reliable. Waterproof and stain resistant;
● Absolute output. No need for regular calibration and maintenance;
● Zero point / full scale point can be adjusted arbitrarily;
● Low power consumption design. Effectively reduce the system temperature drift;
● High precision. The highest 0.1mm liquid level measurement accuracy;
● Side outlet. Easy to install;
● Built-in terminal inside. Support field wiring;
● Support liquid level / interface double float level measurement.

Specifications of LD series Magnetostrictive Level Transmitter

Product name	LD series liquid level sensor
Measuring range	100mm ～ 5000mm or customized according to customer needs
Humidity dew point	90% humidity, no frost
Output signal	Analog output, Modbus output
Resolution	16-bit D / A or minimum 0.01mm
Temperature Coefficient	＜＜ 50ppm / ℃
Electrical protection	IP68
Operating temperature	-40 ℃ ~ + 85 ℃
Number of floats	1: liquid level or 2: interface
Outgoing way	Straight cable, side cable
Input voltage	24VDC (-15 / + 20%)
Installation method	Thread M18 * 1.5, matching flange (optional)
Rod structure	Rigid rod. 304L stainless steel, optional PTFE coating
Electronic warehouse	Anodized aluminum alloy
Float	304L stainless steel, optional PTFE coating
Explosion-proof	ExdIIBT5, please consult technical support for details.

Applications of LD series Magnetostrictive Level Transmitter

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

LMT Series Magnetostrictive Level Transmitter – Applications

Video source: https://www.youtube.com/watch?v=GTZNuJ9u1dI

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.

Magnetostrictive Level Transmitter working principle

Magnetostrictive Level Sensor Operating Principle

When the sensor of the magnetostrictive level transmitter works, the circuit part of the sensor will excite a pulse current on the waveguide wire.
When this current propagates along the waveguide wire, a pulsed current magnetic field is generated around the waveguide wire.
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.
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.
This pulse is transmitted back along the waveguide wire at a fixed speed and detected by the detection mechanism.
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.

Technical advantages of magnetostrictive level transmitter:

-The magnetostrictive level transmitter is suitable for the level measurement of the clean liquid level required by high precision. The accuracy reaches 1mm. The accuracy of the latest products can already reach 0.1mm.

-Magnetostrictive liquid level gauge can also be used to measure the boundary between two different liquids.

-Explosion-proof design, suitable for dangerous occasions.

-Intelligent electronic circuit design can calculate the volume.

-The only moving part is the float, and the maintenance is extremely low.

Float Level Sensor

Multi-Point Liquid Level Float Switch

Magnetostrictive level transmitter installation

1. Thread / flange installation:

As shown in the figure, the product should be installed vertically and the installation slope should not be greater than 5 degrees: when installing the float, the ON (upper) marked hemisphere should be above the liquid level:

The dead ends are measured at both ends of the measuring rod; the lower end and the bottom end of the rod should be flush when the locking ring is fixed.

This method is suitable for most liquid tank measurements. You can use the manufacturer’s connection flange or user-specified flange to screw the liquid level sensor mounting thread directly into the flange.

2. Use the active connector to install:

The sensor rod contacts the bottom of the tank, and the sensor is fixed by the movable joint of the electronic warehouse. The probe can be arbitrarily slid up and down to change the insertion depth of the probe. The sensor electronic warehouse and the lead-out cable are in the oil tank.

Note: Please tighten the compression nut and perform a pressure test to ensure the stability of the movable joint.

3. The positioning ring mounting:

The sensor rod contacts the bottom of the tank, and the positioning ring of the electronic compartment prevents the sensor from swinging. The sensor electronic compartment and the lead-out cable are in the oil tank.

Note: h = tank height H=h+ riser height

D=Φ100mm Standpipe height ≥300mm

4. External installation:

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.

Read more about: List of Radar Level Sensors

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: Static Pressure/Hydrostatic Pressure 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.

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.

More Featured Level Transmitters

**LR series Integral flange Magnetostrictive level sensor**

**LT series Digital Display Magnetostrictive liquid level sensor**

**ULT-100A Ultrasonic Level Transducer**

**Differential pressure(DP) level transmitter**

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

Frequently
Asked
Questions

Help Center

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.

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.

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. It is caused 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.

Ultrasonic waves encountering impurities or interfaces will produce significant reflections and form reflections. Doppler effect can be generated when touching moving objects. Therefore, ultrasonic testing is widely used in industrial, national defense, biomedical and other fields.

To use ultrasound as a means of detection, ultrasound must be generated and received. The device that accomplishes this function is an ultrasonic sensor. It is customarily called an ultrasound transducer, or ultrasound probe.

Water Pressure Transducers

Posted on July 24, 2019 by KimGuo11

Pressure Transducers and Water Pipe Pressure Measurement

Water pressure transducers also called a water pressure sensor,
are pressure transmitters that can measure water pipe pressure.

For the water level/water depth measurement,
in the tank, or in the well, we can use electrical transmitters, stainless steel body, IP65-IP6, 4-20ma output.

Sino-Inst applies application expertise to design and manufacture pressure sensors and transducers for the water industry.

Various factors impact the selection and long term use of water pressure sensors and transducers, in residential, commercial, and irrigation systems.

Sino manufactures various products with design features, to offer excellent accuracy and long term stability.

Below is some basic information to review, before making a decision on the type of pressure sensor technology, as well as the electrical and mechanical features required.

Sino-Inst also offers pressure transmitters with 0-5V/0.5-4.5V, just contact us now.

Water Compatibility

A pressure sensing element will come in contact with varying pH levels, depending on the type of water, chemicals added, and the quality of the water purification process.

Sino packages pressure sensors using silicon strain gages, mounted onto a one-piece, 316L stainless steel sensing element.

316L SS offers excellent media compatibility for residential, and commercial water applications and is an NSF61 compliant material.

Environment

Rain, ice, dust, and pressure washers can cause water to seep into sensor housings, and cause the electronics to short.

Sino offers sealed gauge reference pressure sensors to protect the electronics from these conditions.

Electrical Isolation

Improper grounding and lightning strikes can cause electrical failures of pressure sensors, as a result of isolation failure.

Sino can include custom electronics and a sensing element to withstand 500VDC isolation to work in extreme electrical conditions.

The use of a 4-20mA output signal for transmission lengths greater than 15 feet in environments with electrical noise, will help prevent signal loss or noisy signal conditions.

Read more about: What is a pressure sensor and how it works?

Using Pressure Transducers for Water Pipe Pressure Measurement at Water Distribution Utilities

Inlet and Outlet Water Pipe Pressure Measurement in Clean Water Systems

Clean water systems use lift stations and gravity feed reservoirs, to pump water between locations.

In some residential settings, lift stations and water towers alone cannot supply enough pressure, to provide users at higher elevations with clean water.

Also, water reservoirs and water towers, that experience sudden, large draws of water need replenishment.

Pressure-controlled variable frequency drive pumps (VFDs) are used with pressure transducers, for reliable electronic pressure measurement to determine when extra pressure and flow are required by users.

Pressure transducers are used to monitor water pressure, at elevation, in reservoirs, and the rate of change in each.

VFD pumps interpret the pressure inputs and output the necessary increase or decrease in pump output pressure and flow rate.

Of course, in the water supply or wastewater treatment industry, the measurement of water flow is also very important. For example, if you need to measure the flow of wastewater in a 2-inch pipe. Then you can refer to Magnetic Flow Meters Guides.

Electronic Pressure Transducer Applications for Water Pipe Pressure Measurement in Clean Water Systems

Pressure transducers are used for inlet and outlet water pipe pressure measurement, in clean water systems at public utilities.

An electronic pressure transducer is typically used in water distribution applications such as:

Pump intake pressure measurement
Pump output pressure measurement
End location (reservoir, elevated piping, etc.) pressure measurement

An important part of pressure transmitter selection is ensuring that any electronic pressure transducer used is compatible with potable water.

Pressure transducers are responsible for monitoring the pressure, at various locations throughout clean water systems and often interface with VFD pumps to show, when increased pressure or flow rates are necessary.

The SI-200 and SI-390 electronic pressure transducers are designed for long lifetimes, in both inlet and outlet pipes of clean water systems.

They can usually be delivered within days in a wide variety of configurations.

In addition to measuring water pressure, you may also need to measure water depth. We also provide Portable Ultrasonic Water Depth Gauge.

How to select a water pressure transducer for water pressure?

Absolute or gauge pressure measurement
Cable or flying lead pressure transmitter wiring
Media compatibility for pressure transmitters
Moisture resistance in pressure transmitters
Pressure transmitter accuracy and errors
Radiofrequency (RFI) and electromagnetic interference (EMI) in pressure transmitters
Standard or flush diaphragm pressure transmitters
Vibration resistance in pressure transmitters

Submersible water pressure sensor

Submersible pressure transducer with 4-20mA output is Hydrostatic Level Sensor for level measurement. Submersible pressure transducer is based on the measured liquid static pressure proportional to the height of the liquid Principle. Convert static pressure into electrical signal. After temperature compensation and linear correction. Convert into standard electrical signal. Generally 4 ～ 20mA / 1 ～ 5VDC. It can also be called “static pressure liquid level gauge, liquid level transmission Device, liquid level sensor, water level sensor “. Bullet, cage, and flush tip models are available. Applications include pumps, downhole, oil tanks, lime slurry, and water tanks. There is a miniature submersible transmitter that is low power voltage.

Extended reading: What is a pressure sensor?

Liquid pressure sensor for water pipe

**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.

**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.

**Extended Diaphragm Seal DP Level Transmitter** Extended Diaphragm Seal DP Transmitter is a level transmitter direct mounted on pipe or tank. The isolation diaphragm is in direct contact with the liquid medium.

**Remote Seal Differential Pressure Transmitter** Remote seal differential pressure transmitter is used to prevent medium from entering transmitter. The pressure sensitive diaphragm and the transmitter are connected by a capillary filled with fluid. It is used to measure the level, flow and pressure of fluids, gases or steam.

**Differential pressure(DP) level transmitter** Differential pressure (DP) level transmitter is a perfect solution for tank level measurement. Flanges, seal diaphragms, capillaries, and DP transmitter are often used to measure liquid levels.

What are the different types of pressure sensors?

There 4 main types of pressure sensors based on this:

Strain Gauge Pressure Transducers
Capacitance Pressure Transducers
Potentiometric Pressure Transducers
Resonant Wire Pressure Transducers

More about Industrial Pressure Sensors

FAQ

How does a pressure transducer work?

The installation of the pressure transducer measurement system,
consists of three parts, namely the laying of the pressure guiding tube,
the laying of the electrical signal cable and the installation of the differential pressure transmitter.
During the operation of the pressure transmitter, the pressure of the medium is transmitted to the central measuring diaphragm.
Through the isolating diaphragm and the silicone oil, and the pressure difference from the double-sided pressure guiding tube is received on the double-sided isolating diaphragm, where the membrane is measured.
The sheet functions as a resilient element and is deformed by the pressure difference.
There is a positive proportional relationship, between the displacement of the measuring diaphragm and the differential pressure.
And under the influence of the displacement of the diaphragm, the capacitance of the differential capacitor also changes.
And the measuring circuit converts it into a DC current signal of 4-20 mA.
Extended reading: Hydrostatic Pressure Transmitter

Where are pressure transducers used?

Pressure transducers are mainly used in the following areas:
Petroleum, petrochemical, chemical. Matching with throttling devices to provide accurate flow measurement and control. Measures pressure and level in pipes and tanks.
Electricity, city gas. And other companies and businesses require high stability and high precision measurement and other places.
Pulp and papermaking are used in places that require chemical-resistant liquids and corrosion-resistant liquids.
Steel, non-ferrous metals, and ceramics are used in furnace pressure measurement and other places that require high stability and high precision measurement. They are also used in places that require stable measurement under strict control (temperature, humidity, etc.).
Machinery and shipbuilding, used to strictly control the place where high precision is required for stable measurement.
Extended Reading: 4 wire pressure sensor wiring diagram

What is pressure sensor and how it works?

A pressure sensor is a device or device that can sense a pressure signal and convert the pressure signal into a usable output electrical signal according to a certain rule.
A pressure sensor usually consists of a pressure-sensitive element and a signal processing unit. According to different test pressure types, pressure sensors can be divided into gauge pressure sensors, differential pressure sensors and absolute pressure sensors. A pressure sensor is the core part of pressure transmitter. More.
Extended Reading: Wireless Water Meter

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KimGuo11

drurylandetheatre.com

Capacitive pressure transducer

Posted on July 23, 2019 by KimGuo11

A capacitive pressure transducer also called a Capacitance pressure transmitter or a Capacitance pressure sensor. The capacitive type pressure transmitter is a differential pressure type sensor.

What is the capacitive pressure transducer?

The capacitance pressure transmitter is a pressure measurement device, which converts an applied pressure into a current signal, Like 4-20mA.

A pressure transducer is a device that measures the pressure of a fluid, indicating the force the fluid is exerting on surfaces in contact with it.

Pressure transducers are used in many control and monitoring applications, such as flow, airspeed, level, pump systems, or altitude.

A pressure transducer consists of two main parts: an elastic material that will deform when exposed to a pressurized medium. And an electrical device that detects the deformation and converts it into a usable electrical signal.

The elastic material can be formed into many different shapes and sizes, depending on the sensing principle and range of pressures to be measured.

This often involves a diaphragm combined with an electrical device, that uses a resistive, capacitive, or inductive principle of operation.

Featured Capacitive pressure transducers

**Capacitive Gauge Pressure Transmitter**

**Flange Mounted Differential Pressure Transmitter**

**Smart Differential Pressure Transmitter**

**Extended Diaphragm Seal DP Level Transmitter**

How does a capacitance pressure transducer work?

Capacitive Pressure Transducer Working Principle

A variable capacitance pressure transducer has a capacitive plate (diaphragm), and another capacitive plate (electrode) fixed to an unpressurized surface. With a gap of a certain distance between the diaphragm and the electrode.

A change in pressure will widen or narrow the gap between the two plates, which varies the capacitance.

This change in capacitance is then converted into a usable signal.

Capacitive Pressure Transducer Working Principle:

– A linear change in capacitance with changes in the physical position of the moving element, may be used to provide an electrical indication of the element’s position.

The capacitance is given by:

Technical Support

C = Aε/d

C – Capacitance between two conductors

A – Area of overlapping between those conductors

d – Distance separating the conductors

ε – Dielectric permittivity of the insulating medium

The permittivity of the medium and the area of overlapping will be constant in this case, the only varying parameter. In this case, is the distance between the conductors which varies when the pressure varies, which changes the capacitance.

So the pressure variation results in the capacitance variation. Our capacitance pressure sensor is shown below. Just like A Rosemount capacitance pressure sensor:

capacitance pressure sensor
Rosemount capacitance pressure sensor

The capacitance chamber is isolated from the process with an isolation chamber.

The pressure applied at one side. As the pressure at the high-pressure side increases the isolating diaphragm gets pushed toward the metal frame. Transferring its motion to the sensing diaphragm via the fill fluid.

The fill fluid will be oil.

A capacitance detector circuit connected to this cell uses a high-frequency AC excitation signal to measure the difference in capacitance between the two halves. Translating that into a DC signal ultimately becomes the signal output by the instrument representing pressure.

The simple capacitance detector connection with the electrical circuit is shown below:

Advantages of Capacitive Pressure Transducer:

Inaccuracy 0.01 to 0.2%
Linearity
Fast response
Range of 80Pa to 35MPa

Disadvantages of Capacitive Pressure Transducer:

Temperature sensitivity
Stray capacitance problem
Vibration
Limited overpressure capability
Cost

What does a pressure transducer do?

A pressure transducer is a measuring device which converts an applied pressure into an electrical signal.

Generally, a pressure transducer consists of two parts, an elastic material that deforms under the application of pressure. And an electrical part which detects this deformation.

Extended Reading: 4-20ma pressure transducer wiring diagram

Capacitive pressure sensor applications

Types of Pressure Sensors:

There are different types of pressure transducers based on their design.

These sensors can come in several shapes and sizes, but the technology inside can also differ.

There 4 main types of pressure sensor based on this:

Strain Gauge Pressure Transducers
Capacitance Pressure Transducers
Potentiometric Pressure Transducers
Resonant Wire Pressure Transducers

Know more about Industrial Pressure Sensors

Absolute measurements are generally used in applications where you need a repeatable reference pressure; i.e. in an experiment or in a barometric application.

For example, if you are looking to replicate a test that was originally completed by a colleague in Denver, CO and you are at a facility in Boston.

May you may want to use an absolute sensor to minimize variables in your test.

Other applications include weather stations, altimeter calibration equipment, and semiconductor fabs and many more.

However, if you want to measure or control a pressure that is based on current conditions a gauge sensor may be best.

Generally, if you want to measure or control a pressure that is influenced by changes in atmospheric pressure.

This style sensor is used in any application where you want to overcome the atmospheric conditions, to produce a task or pull a vacuum to accomplisher another type of task.

The applications for gauge pressure sensors are quite vast.

Some examples are pump discharge pressure, fire hose discharge pressure, tank level, steam pressure in a commercial boiler and many more.

Extended Reading: strain gauge pressure transducer

A sensor capable of compound pressure measurement is one that can measure both positive and negative (vacuum) pressures.

Often compound pressure ranges are utilized in applications, where different parts of a process may either be higher or lower than the atmosphere.

For example, if you were a manufacturer of a collapsible water bottle, in one part of the process you may pressurize a mold to form the bottle, but they pull a vacuum to release the part.

In this case, you may be able to use only one sensor instead of two to accomplish the same task.

Remember that Differential pressure is the difference in pressure between two points of measurement.

You can measure very low to high pressures in all kinds of different media including liquids, gases, water, refrigerants, and air.

Thus, if you want to measure the difference in pressure across a filter (see below), you could use a differential pressure transducer like 3151DP to tell you when it was time to change the filter.

So you can maintain the Indoor Air Quality (IAQ) of your building.

Differential applications can be quite varied, some examples supply and return pressure in a chiller, airflow stations, leak detection systems, pressurized tank level, hospital isolation or protection rooms, and many more.

Extended reading: Smart Differential Pressure Transmitter

How much does it cost a pressure transducer?

There are a number of factors that will impact the price of a pressure transducer.

The biggest differentiator is whether you can use a standard, off-the-shelf pressure transducer, or if you need a custom pressure transducer.

For an off-the-shelf pressure transducer, pressure transducer prices will be most affected by the level of accuracy required for your application.

The more accurate, typically the more expensive the pressure transducer.

To learn more about the pricing of custom pressure sensors click here.

Related Products

**SI-303 Low-Pressure Transducer**
Low pressure transducers for air and non-corrosive gases low pressure measurement. 0 ～ 2.5kPa to 0 ～ 30kPa measurable.

**SI-350 Sanitary Pressure Transmitter**
Sanitary Pressure Transmitter, also called tri clamp pressure transmitter,
is the pressure transducer with the flush diaphragm (flat membrane) as the pressure sensor.

**SI-300 Pressure Transducer 4-20mA/Voltage**
The 4-20mA/ Voltage Pressure Transducer,
also called pressure transmitter 4-20mA,
is a pressure sensor with4-20ma/Voltage output.

**SI-512H High Temperature Pressure Sensor**
High Temperature Pressure Sensor for pressure measurement of high temperature gas or liquid. Such as steam pressure. High temperature up to 800 ℃.

**SI-706 Combined Pressure and Temperature Sensor-Dual function**
Combined pressure and temperature sensor for Simultaneous measurement.
Thermocouple types: J, K, E type or PT100 platinum resistance.

**Absolute Pressure Transmitter**
Absolute pressure transmitter with 4-20mA output for measuring pressure with absolute type reference. Absolute pressure (AP) transmitter is a measure of the ideal (complete) vacuum pressure.

**Hydrostatic pressure transmitter**
Hydrostatic pressure transmitter is used for fluid hydrostatic pressure measurement. With working static pressure up to 32Mpa, for liquid, gas or steam .

**Diffused silicon Gauge Pressure Transmitter**
A gauge pressure (GP) transmitter compares a process pressure against local ambient air pressure. Gauge pressure transmitters have ports to sample the ambient air pressure in real-time.

**Capacitive Gauge Pressure Transmitter**
Gauge pressure (GP) transmitters compare process pressure with local ambient air pressure. Gauge pressure transmitters have ports for real-time sampling of ambient air pressure.

In addition to pressure measurement, capacitive technology is also used in liquid level measurement. Read more about: Capacitive Level Measurement Principle.

Sino-Instrument offers over 50 Capacitive pressure transducers.

About 50% of these are 4-20ma Low-Pressure Transducers, 40% are Differential Pressure Gauge.

And 20% are Diaphragm Seal Pressure transmitters, 20% are 4-20ma differential pressure transmitters.

A wide variety of Capacitive pressure transducers options are available to you, such as free samples, paid samples.

Sino-Instrument is a globally recognized supplier and manufacturer of Low-Pressure Transducers, located in China.

The top supplying country is China (Mainland), which supply 100% of Capacitive pressure transducers respectively.

Capacitive pressure transducers 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-80 Radar Level Sensors

Posted on July 16, 2019 by KimGuo11

Radar level measurement

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

In continuous non-contact level measurement with radar,

the sensor sends microwave signals towards the medium from above.

Non-contact radar continuously measures the level of powders, granules, solids, or liquids in a vessel.

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.

Pulse radar transmitters using a lower frequency are more commonly used in liquids,

and perform in diverse tank shapes and environmental conditions.

For usage in a wide range of applications,

be it in the simple water tank, in corrosive or aggressive media,

or high accuracy liquid level applications.

Radar Level Sensor Features

Non-contact, continuous level measurement over larger ranges
Unaffected by sludge and biomass, dust, foam, oil, grease and other coatings, uneven surfaces, turbulence, pressure, and vacuum
Single frequency radar level sensors for liquid sensing, dual frequency radar level sensors for level measurement of aggregates, gravel, sand, coal, asphalt, and other solids
Simple mounting and push-button calibration

Radar level sensor advantages and disadvantages

The advantages:

Measurement is not affected by temperature, pressure or dust
User-friendly adjustment saves time
Non-contact, continuous level measurement over larger ranges
Unaffected by sludge and biomass, dust, foam, oil, grease and other coatings, uneven surfaces, turbulence, pressure, and vacuum
Single frequency radar level sensors for liquid sensing, dual frequency radar level sensors for level measurement of aggregates, gravel, sand, coal, asphalt, and other solids
Simple mounting and push-button calibration

The disadvantages

Very sensitive to build-up on the sensor surface.

They are very expensive. Price increases with accuracy.

Sino-Instrument can offer you a better price for all kinds of Radar Level Sensor, for level measurement.

SEND RFQ NOW

You may like: the Magnetostrictive level sensor

1. Working Principle of Non-Contacting Radar Level Sensors/Gauges (Unguided Wave)

Antenna system to launch and microwave receiving energy is a very low, very short pulse.

Radar waves travel with the speed of light.

The running time can be through the electronic components are converted into a signal.

Measurement of this special time extension method can realize stable,

accurate in a very short period of time.

Even if the condition is very complex, the presence of false echo,

with the latest micro-processing technology and debugging software,

also can analyze the level echo accurately.

Operating Principle of Non-Contacting Radar Level Sensors/Gauges (Unguided Wave)

Microwave antenna to receive the reflected pulse,

and transmitted to the electronic circuit, a microprocessor to signal to process

to identify the micropulse generated on the material surface echo.

Echo recognition is completed by the pulse system,

the accuracy can reach the millimeter level.

From the material surface distance between D and T pulse is proportional to the time travel:

D=C×T/2

Where C is the speed of light

Because of the air tank is a known distance E, L:

L=E-D

By setting the empty tank height E (= zero),

the full height of F (= full scale) and some application parameters,

application parameters automatically make the instrument to measure the environment.

4 – 20mA with corresponding output.

2. Level measurement with Radar- Applications

6GHz radar level gauge is suitable for liquid, paste,

granule and block material level and non-contact measurement,

suitable for changes in temperature, pressure big;

there is an inert gas and volatile.

The measurement method of microwave pulse can work normally in the industrial frequency band range.

The beam energy is low, can be installed on all kinds of metal,

non-metallic container or pipe, no harm to human body and environment.

3. SI-80 series Radar Level Sensors

801 Radar Level Sensor

Suitable for Medium: Liquid, slightly corrosive liquid
Suitable for Medium: Liquid, slightly corrosive liquid
Explosion-proof Grade: Exia IIC T6 Ga/ Exd IIC T6 Gb
Measuring Range: 20m
Frequency: 6 GHz
Temperature: (-40 ~ 130) ℃
Measurement Accuracy: ±10mm
Process Pressure: (-0.1 ~ 0.3) MPa
The signal Output: (4 ~ 20) mA/HART
The Scene Display: Four LCD /Can be programmed
Power Source: Two-wire (DC24V)
Four-wire（DC24V / AC220V）
Repeatability: ± 1mm
Outer Covering: Aluminum /Plastic / Stainless steel
Connection: Flange (optional) / Thread

802 Radar Level Sensor

Suitable for Medium: Liquid, especially for corrosive liquid
Explosion-proof Grade: Exia IIC T6 Ga/ Exd IIC T6 Gb
Measuring Range: 20m
Aerials: The Rod Antenna (PTFE)
Frequency: 6 GHz
Temperature: -40℃~130℃（Standard type）
-40℃~180℃（High temperature type）
Measurement Precision: ± 10mm
Process Pressure: (-0.1 ~ 1.6) MPa
The Signal Output: (4 ~ 20) mA/HART
The Scene Display: Four LCD /Can be programmed
Power Source: Two-wire (DC24V)
Four-wire（DC24V/AC220V）
Repeatability: ± 1mm
Outer Covering: Aluminum / Plastic / Stainless steel
Connection: With PTFE plate flange

803 Radar Level Sensor

Suitable for Medium: Liquid, especially with pressure and Volatile Liquid
Explosion-proof Grade: Exia IIC T6 Ga/ Exd IIC T6 Gb
Measuring range: 35m
Aerials: The Horn Antenna
Frequency: 6 GHz
Temperature: -40℃~130℃（Standard type）
-40℃~250℃（High temperature type）
Measurement Precision: ± 10mm
Process Pressure: (-0.1 ~ 4) MPa
The Signal Output: (4 ~ 20) mA/HART
The Scene Display: Four LCD /Can be programmed
Power Source: Two-wire (DC24V)
Four-wire（DC24V/AC220V）
Repeatability: ± 1mm
Outer Covering: Aluminum / Plastic / Stainless steel
Connection: Flange (optional) / Thread

804 Radar Level Sensor

Suitable for Medium: Solid particles or block material,
And it is not suitable for solid powder
Explosion-proof Grade: Exia IIC T6 Ga/ Exd IIC T6 Gb
Measuring Range: 35m
Aerials: The Horn Antenna
Frequency: 6 GHz
Temperature: -40℃~130℃（Standard type）
-40℃~250℃（High temperature type）
Measurement Precision: ± 20mm
Process Pressure: (-0.1 ~ 0.3) MPa
The Signal Output: (4 ~ 20) mA/HART
The Scene Display: Four LCD /Can be programmed
Power Source: Two-wire (DC24V)
Four-wire（DC24V/AC220V）
Repeatability: ± 1mm
Outer Covering: Aluminum / Plastic / Stainless steel
Connection: Universal joint flange

805 Radar Level Sensor

Suitable for Medium: Liquid, especially suitable for low dielectric constant, sticky, with mixing the liquid
Explosion-proof Grade: Exia IIC T6 Ga/ Exd IIC T6 G
Measuring Range: 20m
Aerials: The Horn Antenna
Frequency: 6GHz
Temperature: -40℃~130℃（Standard type）
-40℃~250℃（High temperature type）
Measurement Precision: ± 10mm
Process Pressure: (-0.1 ~ 4) MPa
The Signal Output: (4 ~ 20) mA/HART
The Scene Display: Four LCD /Can be programmed
Power Source: Two-wire (DC24V)
Four-wire（DC24V/AC220V）
Repeatability: ± 1mm
Outer Covering: Aluminum / Plastic / Stainless steel
Connection: Flange

806 Radar Level Sensor

Suitable for Medium: Solid, especially suitable for high-temperature conditions
Explosion-proof Grade: Exia IIC T6 Ga/ Exd IIC T6 G
Measuring Range: 15m
Aerials: The Horn Antenna
Frequency: 6GHz
Temperature: (-40 ~ 400) ℃
Measurement Precision: ± 20mm
Process Pressure: (-0.1 ~ 0.3) MPa
The Signal Output: (4 ~ 20) mA/HART
The Scene Display: Four LCD /Can be programmed
Power Source: Two-wire (DC24V)
Four-wire（DC24V/AC220V）
Repeatability: ± 1mm
Outer Covering: Aluminum / Plastic / Stainless steel
Connection: Flange

3. Installation Guide of SI-80 Radar Level Sensors

3.1 SI-80 Radar Level Sensors Installation instructions:

The recommended position (2), the outer wall of the tank wall to install pipe shall meet the following,

from the tank wall best distance to tank diameter of 1/4 or 1/6,

the minimum distance from the installation of the tank wall as the measurement range of 1/10.

For example, the liquid level of storage tank 10m,

and the tank wall installs the minimum distance of 1m.

Cannot be installed above the feeding port (4).
Cannot be installed in the central position (3), if installed in the central, yield multiple false echoes, clutter echo will lead to real signal loss.

If you can’t keep the instrument and the tank wall of the tank wall distance, the medium will adhesion caused by false echo, when debugging instrument should be false echo storage.

The top conical tank level, can be installed at the top of the tank is intermediate, can guarantee the measurement to the conical bottom.

A feed antenna to the vertical alignment surface.

If the surface is rough, the stack angle must be used to adjust the angle of Universal joint flange of the antenna to the alignment surface.

(Due to the solid surface tilt will cause the echo attenuation, even Loss of signal.)

3.2 Tank installation instructions FOR
SI-80 Radar Level Sensors

In the signal beam, should avoid the following installation: Such as (1) the limit switch, temperature sensor.

Symmetric devices such as (2): vacuum ring, a heating coil, Baffle plate, etc.

If the tank (1) (2) interference object, should be
guided wave tube measurement.

Best installation options:

Antenna size: larger antenna, beam angle smaller, interfering echoes will be weaker.
Antenna adjustment: the antenna to adjust to the best measurement position.
Guided wave radar takes over: The installation of the waveguide is used to avoid disturbing the echo.

Tank installation ( 801, 802 )

A standard installation

The radar antenna cannot tilt to the tank wall.
In order to minimize temperature effect, at the junction of the butt joint flange must use the spring washer.
The rod antenna launching point must reach out to install the pipe.
The vertical placement of the rod antenna beam direction, don’t let the tank wall.

Tank installation ( 803 )

A standard installation

Horn antenna must be installed pipe
extends out, otherwise, should use the
antenna extension tube.

Horn antenna must be adjusted to the Vertical, don’t let the radar beam pointed to the tank wall.

Install short long antenna extension tube

When the horn length is less than the installation of tube length, tube using an antenna.

If the diameter of the horn tube diameter
greater than the installation, you will need
to increase meter elevation, extension tube.
The antenna and the extension tube needs to to be installed from inside the container.
Select the extension tube makes the instrument at least elevation 100mm.

3.3 SI-80 Radar Level Sensors Measurement of Wave Guide Tube

If there is an obstacle, such as a ladder, limit switches, heating equipment,

such as a stent within the range of the microwave beam emitted radiation will lead to measurement errors.

If affected, the need to add another waveguide measured.

Then measure the waveguide tube (or Bypass pipe) installed inside the container to avoid obstacles,

foam, liquid surface fluctuations and large impact on the measurement.

Note:

Isobaric pore diameter 5 ~ 10mm.

Waveguide diameter of at least 50mm and the inner walls must be smooth.

Measuring only good mobility media, viscous media cannot be measured with a waveguide.

3.4 The bypass pipe installation FOR
SI-80 Radar Level Sensors

If the sensor is installed in the bypass pipe, need to install the communication the part is higher than that of the by-pass pipe and the upper part of the container ≥ 500mm;

Bypass pipe at the bottom to be lower than the connecting part of the by-pass pipe and the bottom of the container ≥300mm.

Radar installation site display unit and connected component parallel.

Schematic diagram of the bottom refraction board

If the dielectric constant of the medium-small (< 4), part of the radar signal can penetrate the dielectric constant constant dielectric.

Echo signal when the tank bottom reflection signals when compared to the dielectric reflection of strong, at this time,

measurement error. In this case, can be at the bottom of the tank to install the refraction board will signal refraction.

3.5 Typical installation errors OF
SI-80 Radar Level Sensors

3.5.1 The conical tank cannot be installed above the feed port.

Note: outdoor installation should adopt sunshade.

① Correct

② Error rainproof measures

3.5.2 The instrument cannot be installed in the arched or domed roof intermediate.

In addition, producing indirect echo is also affected by the echoes.

Multiple echoes can be larger than the real value of signal echo because through the top can concentrate multiple echoes.

So cannot be installed in a central location.

① Correct

② Error

3.5.3 There are obstacles affecting measurement needed reflection plate.

① Correct

② Error

3.6 Below is a schematic diagram of the echo signal:

Sino-Instrument also offer

Ultrasonic level sensor:

Explosion-Proof, Mapping Software, 3″ (76.2 mm) Measuring Column

Series ULT Ultrasonic Level Transmitter provides reliable, accurate, non-contact measurement of liquid levels.

VIEW DETAIL

Radar level transmitter

Level measurement with radar;
radar type level transmitter, also called Radar level gauge.

Non-contacting radar is based on microwave technology,

which detects only surfaces that reflect energy.

VIEW DETAIL

Guided wave radar devices, also called wave guided radar level transmitter,

have no moving parts and require minimum maintenance.

They can measure both the level and the interface between two media.

VIEW DETAIL

Pressure level sensors

SI-PCM261 Submersible Pressure Transducer

Submersible pressure transducer with 4-20mA output,

is normal submersible pressure transmitter for level measurement.

Sino-Instrument Hydrostatic submersed level transducers are sensors,

with an electrical transmission output for indication of liquid level.

VIEW DETAIL

The liquid level sensor also called a water pressure sensor, or water pressure transducer.

The SI-10 series pressure sensor provides exceptional levels of stability,

and other performance specifications,

in a wide variety of enclosures from submersible to differential styles.

VIEW DETAIL

Sino-Instrument offers over 50 Radar Level Sensors products.

About 50% of these are Submersible level Transmitter measurement, 40% are water meters,

and 40% are liquid level meters.

and ultrasonic level sensor.

New: SI-LT Magnetostrictive level transmitter with Local Digital Display

A wide variety of Radar Level Sensors options are available to you, such as free samples, paid samples.

Sino-Instrument is a globally recognized supplier and manufacturer of
Radar Level Sensors , located in China.

The top supplying country is China (Mainland), which supply 100% of
Radar Level Sensors respectively.

Sino-Instrument sells through a mature distribution network that reaches all 50 states and 30 countries worldwide.

Radar Level Sensors 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

KimGuo11

drurylandetheatre.com

Pressure indicator transmitters

Posted on July 15, 2019 by KimGuo11

Pressure transmitters and transducers with industry-leading performance help improve operations in a wide range of industries

What is a pressure indicator transmitter?

Pressure indicator transmitters are industrial instruments,
which has a digital display for providing a local indication of pressure indicating,
and a 4-20 mA output pressure transmitter (which is also called the smart pressure gauge),
for sending an analog signal to control & monitor instrumentation.
The built-in digital indicators can be scaled via push buttons or change pots,
to any pressure unit or a 0-100% full scaling.
No additional external supply is required,
since the digital indicator is powered by the 4-20mA current loop,
from the pressure transmitter.

Sino-Instrument can offer pressure indicator transmitters for differential pressure measurement,

pressure level measurement, and water pressure measurement.

Pressure indicator transmitters can work with manifold, diaphragm seal, hart, orifice plate,

to measure different types of flow or level.

Pressure Indicators

by Sino-Instrument

More Reliable
Better Price
Many Years of experience in development and production

Contact us

Email: huahengxa@gmail.com
WhatsApp: +86-180 4861 3163
WeChat: +86-180 4861 3163
Mob: +86-18048613163

Types of the pressure indicator transmitters

The basis for an electronic pressure indicator is formed by the pressure sensor.

It converts the measurement parameter of pressure into an electronic signal.

The advantage of electronic pressure indicator lies

in the excellent dynamic performance and low material stress.

This gives them a high load resistance and long-term stability.

They are available in very small sizes.

Sino-Instrument develops and produces all leading sensor technologies:

The ceramic thick film, metal thin film and piezoresistive.

Electronic assemblies or components are integrated into a mechanical pressure indicator.

The measured pressure is displayed locally, however,

besides, the pressure indicator offers an electrical signal,

or includes an electrical switching function.

With these instruments, the measured value can also be read reliably on site,

if the power supply fails or the measuring signal is disrupted.

With the combination of mechanical pressure indicators with different signals and switches,

this results in a comprehensive range of mechatronic pressure indicators.

For our pressure indicators, we use the latest sensor technologies,

tested millions of times over in automotive applications.

They work without any kind of mechanical contact,

consequently, they are wear-resistant,

and there’s absolutely no influence on the pressure indicator.

Because of their robustness and simple handling,

indicating pressure indicators are widely used.

Their elastic pressure elements deform under the influence of pressure.

The measuring system is made from a capsule element,

diaphragm element or Bourdon tube.

The measuring systems are made from copper alloys, alloyed steels or,

if required for specific measuring tasks, from special materials.

Sino-Instrument manufactures mechanical pressure indicators,

with scale ranges from 0 … 0.007 psi up to 0 … 100,000 psi with indication accuracies of up to 0.1 %.

For pressure measurement with high dynamic pressure loads or vibration,

you will find mechanical pressure indicators with liquid filling in the Sino-Instrument portfolio.

Through their damping, they are optimally protected against destruction.

Even for the most demanding measuring requirements,

you’ll find the right solution with Sino-Instrument.

Diaphragm seals enable pressure measurement with harsh conditions such as,

for example, corrosive, highly viscous or fibrous media, very high temperatures,

awkwardly placed measuring points,

hygienic regulations or also toxic media or media harmful to the environment.

What is the function of a pressure transmitter?

The main function of the pressure transmitter is to transmit the pressure signal to the electronic device,

which in turn displays the pressure on the computer.

The pressure transmitter amplifies the weak electrical signal collected by the pressure sensor,

to transfer or activate the control element.

Or a signal source that converts the non-electricity of the sensor input,

into an electrical signal while amplifying it for remote measurement and control.

The analog quantity can also be converted to a digital quantity as needed.

The pressure sensor converts the mechanical pressure value into a proportional electrical signal.

The pressure sensor typically consists of a stable main body and a (thin) diaphragm.

The diaphragm is the most important element for the measurement of the pressure,

and is equipped with strain-sensitive and compression-sensitive resistance structures,

so-called strain gauges (DMS).

The diaphragm is deflected under the influence of pressure.

Thus, the strain gauges attached to it are elongated or compressed,

and its electrical resistance changes.

This change in resistance is directly proportional to the pressure.

For example, if the resistors are wired to a Wheatstone measuring bridge,

the resulting electrical signal can be measured and transferred to an indicator.

You may like the pressure level transmitter

What is the difference between the pressure gauge and pressure indicator?

A pressure Indicator is an instrument that indicates pressure.

A pressure Gauge is also a type of pressure Indicator.

It is a mechanical device.

Pressure indicators can work on mechanical deflection (in case of pressure gauge) or Piezoelectric effect,

change in capacitance, change in inductance, etc.

These are generally digital type instruments.

What is the difference between the pressure switch and pressure transmitter?

A pressure switch is an active electromechanical device,

which measures the pressure in a system,

and when the pressure reaches too high or too low of a given setpoint,

the device will “switch” meaning it will open or close a circuit,

that powers a certain device (like an alarm system or a shutdown valve).

A pressure transmitter or pressure transducer, on the other hand,

is also an electromechanical device,

which measures pressure but instead of signaling a switch,

it merely sends a read-out signal of what the specific pressure value is to a remote location.

Usually, a pressure switch, rather than a transmitter,

will be used in pressure-system applications,

where safety is of paramount importance.

An oil wellhead, for example, can see some very high-pressure spikes,

and if the pressure reaches too high, a possible well blowout can occur.

A pressure switch in this application makes sense so that when the pressure reaches too high,

the switch can trigger a blowout preventer,

which can actuate to reduce pressure in the system.

In contrast, the pressure transmitter has no inherent mechanical switching element.

However, transmitters prove to be much more versatile in that,

via third-party software that interprets the given pressure reading,

they can be extremely useful for measuring efficiencies of pressure systems,

and can control many industrial functions,

such as inlets and outlets, chemical or fuel mixtures,

or can even act as a safety switch itself depending on how the software is set up to control the system.

Extended reading: Smart Differential Pressure Transmitter

How Does a Pressure Transmitter Work?

Pressure Transmitter Calibration

Sino-Instrument is pressure transmitters manufacturer in China.

We offer all types of Pressure indicator transmitters.

Like Direct Mounted, flange-mounted, single flange, double flange,

Remote Diaphragm Seals, High Static, Digital Remote.

Most of our pressure transmitters are used in oil, liquids,

DP transmitter, flow measurement, level measurement (like the ultrasonic level measurement),

density, and other process variables.

Pressure transducers are generally available with three types of electrical output;

millivolt, amplified voltage, and 4-20mA.

You can ensure product safety by selecting from certified suppliers,

with ISO9001, ISO14001 certification.

We will share more about instrument calibration, like the flow transmitter calibration.

Request a Quote

KimGuo11

drurylandetheatre.com

Guide to Ultrasonic Level Transmitters-for Continuous Non Contact Level Measurement of Liquid & Solids.

Posted on July 10, 2019 by KimGuo11

What is an Ultrasonic level transmitter?

Ultrasonic Level Transmitters & Ultrasonic Level Sensors are designed to provide accurate and reliable level sensing for difficult to monitor fluids, where contact with media is not desirable from the extremes of sending: ultrapure to corrosive or even dirty where coating or scaling is possible. Ultrasonic level transmitters have no moving parts, are easy to install and simple to use.

Ultrasonic level measurement provides continuous, non-contact and maintenance-free level measurement of fluids, pastes, sludges and powdery to coarse bulk materials. The measurement is unaffected by dielectric constant, density or humidity and also unaffected by build-up due to the self-cleaning effect of the sensors.

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The basics of ultrasonic level transmitters – how they work and what they’re used for

Ultrasonic Level Transmitters working principle

The Ultrasonic Level Transmitter consists of three parts: ultrasonic transducer (probe), drive circuit (module), and electronic display module.

The Ultrasonic Sensor is installed on the storage tank or process vessel. The sensor sends out a sound wave, which ricochets off the surface of the liquid and returns to the sensor. The time it takes for the sound wave to travel from the sensor to the liquid surface and return to the sensor is measured. This time delay is proportional to the level of the liquid.

The drive circuit processes the signal from the Ultrasonic Sensor, compensates for adverse conditions (temperature, pressure, etc) and converts it into a standard 4-20mA or 0-5/10 Vdc signal that can be read by a PLC, DCS or Display/Transmitter.

The Display/Transmitter converts the 4-20mA or 0-5/10 Vdc signal into a display reading in the unit of measure required (feet, inches, meters, centimeters, etc). Ultrasonic level transmitters can be outfitted with local displays and push button controls for easy configuration without the need of a laptop or other computer.

Applications

Ultrasonic level transmitters are used for inventory management and process automation in a wide range of industries. Applications include:

Food & Beverage
Water & Waste Water
Chemical
Petroleum
Pharmaceutical

Read more about: Ultrasonic Level Sensor Applications

Featured Ultrasonic level transmitters

Model	Integrated Model	Split model
Pictures
Measuring range	5m、10m、15m、20m、30m	5m、10m、15m、20m、30m
Accuracy	0.5%~1.0%	0.5%~1.0%
Resolution	3mm or 0.1% (choose the bigger)	3mm or 0.1% (choose the bigger)
Display	LCD	LCD
Analog output	4 wire system 4~20mA/510Q loading 2 wire system 4~20mA/250Q loading	4~20mA/510Q loading
Relay output	2 sets of AC 250V/ 8A or DC 30V/ 5A are optional, state is programmable	2 sets of single-channel are (optional), the double channel is 4 sets of AC 250V/ 8A or DC 30V/ 5A, the state is programmable
Power supply	Standard: 24VDC Optional: 220VAC + 15% 50Hz	Standard: 220V AC + 15% 50Hz Optional: 24VDC 120m Customized 12VDC or battery-powered
Environmental temperature	Meter display -20 ~ +60°C Probe -20~+80°C	Meter display -20~ +60°C Probe-20~+80°C
Communication	Optional 485,232 communication (manufacturer agreement)	Optional 485, 232 communication (manufacturer agreement)
Protection class	Display meter IP65, Probe Ip68	Display meter IP65, Probe Ip68
Probe cable	No	100m reachable, standard 10m
Probe installation	Selection based on measuring range and probe	Selection based on measuring range and probe

Ultrasonic level transmitter data sheet

Ultrasonic-Level-Meters-Catalogue

Extended reading: liquid nitrogen level sensor

The benefits of using an ultrasonic level transmitter

– Ultrasonic level transmitters are easy to install and simple to use.

– Ultrasonic level measurement provides continuous, non-contact and maintenance-free level measurement of fluids, pastes, sludges and powdery to coarse bulk materials.

– Ultrasonic level transmitters are unaffected by dielectric constant, density or humidity and also unaffected by build-up due to the self-cleaning effect of the sensors.

Sino-Inst offers a wide range of Ultrasonic Level Transmitters that can be used in various industries for inventory management and process automation. If you have any questions about which Ultrasonic Level Transmitter is right for your application, please contact us and we will be happy to assist you.

How to choose the right ultrasonic level transmitter for your needs

1. The ultrasonic level meter can only be used for the medium that can fully reflect sound waves and propagate sound waves. For the sound wave adsorption ability of the medium, it is not suitable to use ultrasonic level meter.

2. The ultrasonic level meter can not be applied to vacuum occasions, and not for negative pressure occasions. Because the propagation of ultrasonic waves need air medium. And the thin air environment is very unfavorable to ultrasonic propagation. Plus the sound attenuation will therefore increase. Ultimately, it will lead to serious errors in measurement or even can not be measured.

3. If the measured medium is a volatile liquid, or contains a large amount of water vapor, dust, bubbles, suspended particles and other media, the ultrasonic level meter should not be used.
This is due to the fact that when the sound waves from the probe of the ultrasonic level meter encounter the above medium, irregular reflection and scattering will occur. The probe will not be able to receive the normal signal. And these media will absorb the sound waves. This causes the attenuation of sound waves and affects the measurement results.

4. If there are obstacles or equipment that affect the propagation of sound waves inside the vessel. Then the ultrasonic level meter is not recommended.

5. Ultrasonic level meter can generally only be applied in the normal temperature and pressure range. If the pressure is too high, it will have a strong inhibiting effect on the sound speed of the acoustic wave. Eventually, it will affect the measurement accuracy, or even impossible to measure. And the temperature generally cannot exceed 100℃.

Tips for ultrasonic level transmitter installation

Before installing the ultrasonic level Transmitters, please read the instruction manual of the ultrasonic level Transmitters carefully. Work according to the instructions.

At the same time, it should be reconfirmed whether the model of the instrument matches the environmental requirements of the site such as process pressure, process temperature, and chemical properties of the medium. To ensure that the instrument can be used normally after installation.

To install the ultrasonic level meter, please observe the following operating rules:

Try to avoid in-tank facilities such as ladders, heating equipment, limit switch brackets, etc. for installation.
The ultrasonic beam must not intersect the feed stream. At the same time, pay attention to ensure that the highest material level does not enter the measurement blind area during installation. The ultrasonic level Transmitters must not be installed above the feed stream.
When installing the ultrasonic level Transmitters, it should keep a certain distance from the tank wall. And keep the transducer perpendicular to the liquid surface as much as possible.
When installed outdoors, the ultrasonic level Transmitters should take sunshade and rainproof measures. To avoid direct sunlight and reduce measurement errors caused by temperature changes. At the same time should also pay attention to moisture.
The ultrasonic level Transmitters installed in the hazardous area must comply with the installation regulations of the national explosion-proof hazardous area. The intrinsically safe ultrasonic liquid level Transmitter is installed in the occasion with explosion-proof requirements, and the ultrasonic liquid level Transmitter must be grounded.
When there is stirring in the container. The ultrasonic level Transmitters should be kept away from the agitator. In order to eliminate the false echo effect produced by the stirring blade. If foam or waves are created due to agitation, the still-pipe installation method should be used.
When there is foam in the container. When feeding, stirring or doing other processing in the container, foam will be formed on the surface of some media, which will attenuate the signal of the ultrasonic level Transmitter. The sensor should be installed in a still-pipe or a guided-wave radar level Transmitters should be used. Guided wave radar level Transmitters measurements are not affected by foam and are ideal for this application.
When there is airflow in the container. If there is a strong airflow or air vortex in the container, or if it is installed outdoors and in a very windy place. The sensor should be installed in a still-pipe or a guided-wave radar level Transmitters should be used.

Depending on the shape of the tank top of the container, the installation position of the ultrasonic level transmitter should be selected to avoid multiple reflection echoes between the liquid level and the top wall. In order to reduce interference, reduce noise signal and ensure the accuracy of detection.

Installation position of ultrasonic level transmitters

The reasonable installation position of the ultrasonic level transmitter should be determined according to the different top and internal structure shapes of the liquid container:

A. Grooved container:

The support frame should be firm and reliable;
The height of the intersection line of the beam emitted by the probe and the tank wall must be less than or equal to the minimum height of the liquid level to be measured;
The installation height should be within the required range.

B. Arched container:

Meters cannot be installed on vaulted ceilings. It should be installed at 1/2 or 1/3 of the radius of the empowerment.

C. Conical container:

For conical containers with flat tops. The best place to install the meter is in the center of the top of the vessel. This ensures that you measure to the bottom of the container.

ultrasonic level sensor alternative products

**Alternative to VEGAPULS 64-80GHz FMCW Level Radar**

**SIRD-905 Horn Antenna Radar Tank Level Sensor**

**SIRD-802 Radar Level Sensor for Corrosive Liquids**

**Pressure Guided Submersible Level Transmitter**

**Remote Seal Differential Pressure Transmitter**

**SI-PCM260 Deep Well Water Level Sensor**

**SIRD70 Guided Wave Radar (GWR) Level Transmitters**

Frequently
Asked
Questions

Help Center

Ultrasonic level transmitters use sound waves to measure the level of a liquid in a tank. The transmitter sends out a sound wave and measures the time it takes for the sound wave to bounce back. The transmitter then calculates the distance from the sensor to the liquid surface and displays the level on a digital display.

An ultrasonic level sensor is a device that uses sound waves to measure the level of liquids, pastes, sludges, and other similar substances. Ultrasonic sensors are unaffected by dielectric constant, density or humidity, and also have a self-cleaning effect that prevents build-up.

Ultrasonic level measurement works by sending out a sound wave from the sensor and measuring the time it takes for the sound wave to bounce back. The time it takes for the sound wave to bounce back is directly proportional to the level of the liquid. Ultrasonic sensors are very accurate and can be used in a wide range of applications.

Radar level transmitters use microwave energy to measure the level of liquids, while ultrasonic level transmitters use sound waves. Both technologies have their own advantages and disadvantages. Radar is more accurate than ultrasonic, but it is also more expensive. Ultrasonic is less accurate than radar, but it is less expensive and easier to install.

Sino-Ins offers 20 ultrasonic level transmitters products.

About 13% of these are ultrasonic level transducers, 4% are ultrasonic level indicators.

A wide variety of ultrasonic level transmitters options is available to you, such as free samples, paid samples.

Sino-Inst is an ultrasonic level transmitter supplier, located in China.

Ultrasonic level transmitter products are most popular in North America, Mid East, and Eastern Europe.

The United States, and India, which export 99%, 1%, and 1% of ultrasonic level transmitters respectively.

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

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KimGuo11

drurylandetheatre.com

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