How to Calculate Pressure Drop in a Pipe?

Posted on February 20, 2023 by KimGuo11

What is pressure drop in a pipe? Pressure drop is the decrease in pressure that occurs as fluids flow through pipes due to friction and other factors. When we choose and use various flowmeters, we may all hear the parameter of pressure loss or pressure drop.

It’s important to know how to calculate pressure drop in pipes, as it can help you troubleshoot issues, optimize your system’s performance. In this blog, we’ll show you how to calculate pressure drop in pipes and provide tips to minimize it in your system. Let’s dive in!

RFQ

5 Factors Affecting Pressure Drop

In industrial settings, pipes are often used to transport liquids, gases, and other materials over long distances. When fluids flow through pipes, they experience pressure drop due to various factors, which can affect the efficiency of the system and even cause equipment failure.

In an industrial pipe system, several factors contribute to pressure drop, including the flow rate, pipe diameter, pipe length, fluid properties (like density and viscosity). And the presence of fittings and valves. These factors must be carefully considered when designing or troubleshooting an industrial pipe system to ensure that it operates safely, efficiently, and reliably.

In this section, we’ll explore each of these factors in more detail and discuss their impact on pressure drop in industrial pipes.

Flow rate is one of the key factors that affects pressure drop in a pipe.

In simple terms, flow rate refers to the volume or mass of fluid that flows through a pipe per unit time. Typically measured in gallons per minute (GPM) or liters per second (L/s). The higher the flow rate, the greater the pressure drop in the pipe due to friction and other factors.

As the fluid flows through the pipe, it interacts with the walls of the pipe and experiences frictional resistance, which results in a loss of energy and pressure drop.

In addition to frictional resistance, high flow rates can also cause turbulence in the fluid, which further increases pressure drop. Turbulence occurs when the fluid flow becomes irregular and chaotic, causing eddies and vortices that can further reduce the fluid’s energy and increase pressure drop.

The National Institute of Standards and Technology (NIST) provides a comprehensive guide to fluid flow in pipes that includes equations and data for calculating pressure drop.

According to the NIST guide, the pressure drop in a pipe is directly proportional to the flow rate raised to the power of 1.75. This means that as the flow rate increases, the pressure drop increases at a faster rate.

The NIST guide is available on the official website of the U.S. Department of Commerce.

The diameter of a pipe is a crucial factor that affects pressure loss in pipelines. Generally, smaller pipes have higher pressure losses than larger pipes.

This is due to the relatively greater surface area of smaller pipes, which results in higher frictional losses and turbulence in the fluid.

Additionally, smaller pipes are more prone to blockages or obstructions, which can further increase pressure loss.

To illustrate the impact of pipe diameter on pressure loss, researchers often use the Darcy-Weisbach equation, which relates pressure loss to pipe diameter, fluid density, fluid velocity, and other variables.

According to this equation, pressure loss is proportional to the length of the pipe, the fluid viscosity, and the square of the fluid velocity. But inversely proportional to the diameter of the pipe raised to the power of 5.

For example, if the diameter of a pipe is doubled, the pressure loss is reduced by a factor of 32. This demonstrates the importance of selecting the appropriate pipe diameter for a given system to minimize pressure loss and optimize system performance.

The length of a pipe is another crucial factor that affects pressure loss in pipelines.

Generally, longer pipes have higher pressure losses than shorter pipes. This is due to the relatively greater surface area and more frictional losses in longer pipes.

Additionally, longer pipes are more prone to blockages or obstructions, which can further increase pressure loss.

The Darcy-Weisbach equation, which relates pressure loss to pipe length, fluid density, fluid velocity, and other variables. According to this equation, pressure loss is proportional to the length of the pipe, the fluid viscosity, and the square of the fluid velocity, but inversely proportional to the diameter of the pipe raised to the power of 5.

For example, if the length of a pipe is doubled, the pressure loss is also doubled. This demonstrates the importance of minimizing the length of pipelines and selecting the appropriate pipe diameter for a given system to minimize pressure loss and optimize system performance.

The fluid properties, including density and viscosity, are important factors affecting pipeline pressure loss. As the fluid density and viscosity increase, the pressure loss in the pipe also increases.

This is due to the increased friction between the fluid and the pipe walls, resulting in a greater loss of energy as the fluid flows through the pipe.

According to a study published in the Journal of Energy, the effect of fluid density on pipeline pressure loss can be significant. Increasing the fluid density from 1 kg/m³ to 1000 kg/m³ resulted in a 30% increase in pressure drop.

Another study published in the Journal of Petroleum Science and Engineering showed that the effect of fluid viscosity on pipeline pressure loss is even more significant. Increasing the fluid viscosity from 1 cP to 100 cP resulted in a 270% increase in pressure drop.

In addition to pipe diameter, length, and fluid properties, the fittings and valves used in a pipeline also affect the pressure loss. Fittings and valves cause additional turbulence in the fluid flow, leading to increased friction and pressure loss.

According to a report published by the National Institute of Standards and Technology (NIST), the pressure loss in a pipeline due to fittings and valves can range from 10% to over 50% of the total pressure drop, depending on the type and number of fittings and valves used.

Calculation of Pressure Drop

Calculating pressure drop in a pipeline involves several steps, including:

Determine the flow rate of the fluid in the pipeline.
Determine the properties of the fluid, such as density and viscosity.
Measure the pipe length, diameter, and roughness.
Determine the number and type of fittings and valves in the pipeline.
Select the appropriate pressure drop equation based on the specific pipeline conditions and design.
Calculate the Reynolds number to determine if the flow is laminar or turbulent.
Use the selected pressure drop equation to calculate the pressure drop.
Compare the calculated pressure drop with the maximum allowable pressure drop to ensure that the pipeline operates safely.

It’s important to note that pressure drop calculations may need to be repeated several times to ensure that the pipeline design meets the required pressure and flow rate specifications. It’s also important to ensure that accurate and up-to-date data is used in the calculation to ensure the safety and efficiency of the pipeline.

Pressure Drop Equations

Pressure drop equations are mathematical formulas that engineers and designers use to calculate the pressure loss in a pipeline. There are many different equations, but three of the most common are Bernoulli’s equation, the Darcy-Weisbach equation, and the Hazen-Williams equation.

Bernoulli’s equation
Darcy-Weisbach equation
Hazen-Williams equation

For a detailed introduction to the equation, please refer to the professional academic website. There are detailed discussions. We will not repeat them here.

Read more about: Flow Rate And Pressure Relationship

Online Pressure Drop Calculators and Software

Online pressure drop calculators and software have made it easier than ever to calculate the pressure drop in a pipeline. These tools provide users with an easy and efficient way to input pipeline data and receive accurate pressure drop calculations.

Online calculators typically require the user to input pipeline data such as flow rate, pipe diameter, length, fluid density and viscosity, and fittings and valve information. The software then uses algorithms and equations to provide an estimate of the pressure drop in the pipeline.

These tools are particularly useful for engineers, technicians, and operators who need to quickly and accurately calculate pressure drops for a wide range of pipeline applications.

For example: Pressure Drop Online-Calculator

Flow Meter Pressure Drop

Flow Meter Pressure Drop, also known as Pressure loss, is one of the key indicators of flow meters.

Flow Meter Pressure Drop is used to describe the pressure difference (P1-P2) before and after the flow meter input (P1) and output (P2). It is also the minimum pressure difference to ensure the normal operation of the flowmeter. It is one of the basic parameters of the flowmeter.

The pressure loss of the flowmeter generally increases with the increase of the flow rate. Also affected by the solution. For example, the pressure loss of flowmeters based on ultrasonic flowmeters and MEMS (micro-electromechanical systems) is much smaller than that of vortex flowmeters and differential pressure flowmeters.

Featured Inline Flow Meters

So is there any flowmeter that does not cause pipeline pressure loss?
Yes. Ultrasonic flowmeter, clamp-on sensor, does not need to cut the pipeline, and will not affect the pressure of the pipeline.

Understanding the Pressure Drop of the pipeline helps us to design the pipeline system reasonably.

The Pressure Drop of the flowmeter is also an important parameter to consider. The pressure loss of the flowmeter will cause energy consumption, which is an important parameter to characterize the performance of the flowmeter. It is also more and more people’s attention and become one of the important indicators of flow meter selection.

Sino-Inst is a manufacturer of flow meters. If users have technical questions about the Pressure Drop of the flowmeter, they can contact our sales engineers at any time.

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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.

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New Choice for Heating Oil Tank Level Sensor

Posted on February 19, 2023 by KimGuo11

A heating oil tank level sensor is a device that accurately measures the amount of heating oil in your tank. This sensor can help you avoid the inconvenience and expense of a sudden fuel outage. By monitoring your fuel levels, you can plan ahead and avoid any disruptions to your heating system. That’s where a heating oil tank level sensor comes in handy.

In this article, we’ll introduce you to a new choice for heating oil tank level sensors that can offer greater accuracy and ease of use. It can even withstand the special environment of high temperature and high pressure. So, let’s dive in and learn more about this exciting technology.

RFQ Level Sensor

Common types of heating oil tank level sensors

There are several types of heating oil tank level sensors on the market, each with its own advantages and disadvantages. Here are some of the most commonly used sensors:

Float gauges

Advantages:

Simple and inexpensive to install
Low power consumption
No electronic components to fail

Disadvantages:

Can be inaccurate
Prone to sticking, especially in cold weather
Can only measure levels at discrete points

Ultrasonic sensors

Advantages:

Non-invasive and easy to install
Can measure fuel levels in real-time
Can be integrated with remote monitoring systems

Disadvantages:

Can be affected by temperature changes, vibrations, and turbulence
Can be more expensive than float gauges
Requires a power source to operate

Pressure sensors

Advantages:

Highly accurate and reliable
Can measure fuel levels in real-time
Can be integrated with remote monitoring systems

Disadvantages:

Can be expensive to purchase and install
Requires calibration to maintain accuracy
Electronic components can fail over time

It’s important to consider the advantages and disadvantages of each type of sensor when choosing the best option for your heating oil tank. In the next section, we’ll introduce you to a new choice in heating oil tank level sensors that offers several advantages over traditional sensors.

the new choice: Capacitive level sensors

High-temperature and high-pressure Capacitive level sensors are special instruments tailored for the precise measurement of liquid levels in high-pressure containers and high-temperature containers.

It can be installed in various occasions to accurately measure and control the oil level of gasoline, diesel oil, hydraulic oil, etc. It is also suitable for the measurement of various non-conductive liquids.

This type of product can also be used to measure conductive media when the site conditions are particularly harsh, the electromagnetic interference is particularly serious, and the stirring is particularly severe.

Working principle of high temperature and high pressure capacitive level sensors

The sensing part of high temperature and high pressure capacitive level sensors is a coaxial container. When the oil enters the container, the capacitance between the sensor shell and the sensing electrode changes. This change is converted by the circuit and accurately linearized and temperature Compensation. Output 4-20mA standard signal for display instrument.

Read more about: What Is Capacitive Level Sensor?

technical parameters

Detection range	0.05 -5m
Accuracy	Class 0.1, 0.2, 0.5
Pressure range	-0.1MPa-32MPa
Probe temperature resistance	-50 ~ 250 ℃
Output signal	4-20mA, 4-20mA superimposed HART communication, 485 communication, CAN bus communication
Power supply voltage	12-28VDC (intrinsically safe type needs to be powered by safety barrier)
Fixing method	Threaded installation M20*1.5. Special specifications can be customized upon request
Probe diameter	121625
Explosion-proof grade	Intrinsically safe Exia Ⅱ CT6, flameproof Exd Ⅱ CT5
Protection class	IP65
Intrinsically safe parameters	Ui: 28VDC, Ii: 93mA, Pi: 0.65W, Ci: 0.042uf, Li: 0mH

Applications

Capacitive level sensors of high temperature and high pressure type are suitable for the measurement of various oils below 32MPA and below 250 ℃. Various protocols can be added for communication.

High Temperature-High Pressure Capacitive Level Sensors will be the right choice for you

One successful adoption of capacitive level sensors is in residential and commercial heating systems.

In fact, a UK-based heating oil supplier, Rix Petroleum, reported that they have seen a significant reduction in customer callouts and increased customer satisfaction since implementing capacitive level sensors in their heating oil tanks. They also reported that the sensors have helped to optimize their fuel deliveries and improve their overall efficiency. Rix Petroleum: “Heating Oil Tank Monitoring“.

Additionally, a study by the US Department of Energy found that using capacitive level sensors in heating oil tanks can lead to a reduction in fuel consumption and cost savings of up to 10% per year. This is because the sensors provide accurate and real-time information on fuel levels, allowing for more efficient and cost-effective fuel delivery scheduling.

Overall, the successful adoption of capacitive level sensors in residential and commercial heating systems has been supported by real-world data. Demonstrating their effectiveness in improving accuracy, efficiency, and cost savings.

What Is Capacitive Level Sensor?

Posted on February 17, 2023 by KimGuo11

What is a Capacitive Level Sensor? Simply put, it’s a device used to accurately measure the level of materials in various industries. Unlike other types of sensors, capacitive level sensors use electrical properties to detect changes in the level of materials, making them non-contact and highly accurate.

In this article, we’ll dive into the world of capacitive level sensors, discussing how they work, where they’re used, their advantages and limitations, and what factors to consider when selecting one. If you’re new to capacitive level sensors, or just looking to learn more, this guide is the perfect place to start.

RFQ Level Meters

The purpose of a capacitive level sensor is to accurately and reliably measure the level of materials in various industrial applications.

Capacitive level sensor can measure the level of highly corrosive medium, high temperature medium and sealed container, regardless of the viscosity, density and working pressure of the medium.

Let’s first get to know the working principle of the capacitive level sensor.

capacitive level Measurement Principle

Have you ever wondered how we can measure the level of material in a tank? Well, that’s where the magic of capacitance level measurement comes in!

Think of a capacitor like two metal plates, with a thin layer of insulation in between. When the plates are close together, they can hold more electrical charge. In this measurement technique, the probe acts as one plate and the tank wall as the other. When the tank is empty, there’s plenty of space between the two plates, meaning they can hold very little charge. But as the material fills the tank, the plates move closer together and are able to hold more charge.

So, by measuring the electrical charge between the probe and the tank wall, we can determine just how full the tank is! It’s like a secret code between the sensor and the material in the tank, giving us the scoop on its contents.

Capacitance level measurement is a straightforward, dependable, and non-invasive way to keep track of what’s inside a tank. So the next time you’re curious about how much material is left, just remember the wonder of capacitance level measurement!

Different types of capacitive level sensors available in the market

We have compiled a list of different types of capacity level sensors available in the market.

Rod probe sensor – used for point-level sensing of liquids and solids.
Cable sensor – uses a cable to detect changes in the level of liquids or solids over a larger area.
High-temperature sensor – designed for use in high-temperature applications such as chemical processing.
Low-temperature sensor – Cryogenic Level Sensor for Liquid Nitrogen Tank Level Indicator
Intrinsically safe sensor – designed for use in hazardous environments.
Coaxial sheath type – suitable for measuring various non-conductive liquids
Specialized capacitive sensors – designed for specific industries such as food and beverage.

Understanding the different types of capacitive level sensors available in the market is important for selecting the right sensor for your specific needs. Read more about: External Ultrasonic Tank Level Sensor Installation

capacitive level measurement system

Capacitive level measurement systems are an exciting and innovative way to measure the level of liquids in containers. These systems are made up of two key components: capacitive level sensors and a liquid level recorder or volumetric recorder.

The capacitive level sensors are the key to the measurement process. The capacitive level sensors supplied by Sino-Inst all support signal output. Such as 4-20mA signal, pulse signal or communication protocol such as RS485.

The liquid level recorder or volumetric recorder is the electronic unit that processes the signal from the sensors. It is connected to the sensors and is responsible for converting the capacitance measurement into a readable level measurement. The recorder can be configured to provide real-time data , historical data, and alarms. Making it an ideal solution for monitoring and controlling liquid levels in various industrial applications.

In conclusion, capacitive level measurement systems are a powerful and innovative solution for measuring the level of liquids in containers. Whether you’re looking to monitor liquid levels in real-time or need a historical record of your measurements, capacitive level measurement systems you covered.

Applications of capacitive level sensors

Capacitive level sensors are used in a wide range of industries to accurately measure and monitor the level of various materials, making them an essential tool for maintaining efficiency, safety, and productivity.

Here’s a list of various industries that utilize capacitive level sensors:

Industry	Example of Use
Agriculture	Measuring the level of irrigation water and chemicals in storage tanks used for crop production.
Automotive	Measuring the level of liquids in fuel tanks and coolant in engines, and monitoring the level of battery electrolyte in hybrid and electric vehicles.
Chemical	Measuring the level of liquids and powders in various production processes, such as mixers and reactors. Control Engineering
Food and Beverage	Measuring the level of liquids in tanks and containers, such as for dairy products and brewing. Food Engineering Magazine
Manufacturing	Monitoring the level of liquids and powders in various production processes, such as in pharmaceutical production.
Mining	Measuring the level of liquids and slurries in storage tanks and pipelines used in mineral processing, such as copper production. Mining Technology
Oil and Gas	Measuring the level of liquids and solids in various stages of production, such as in oil refineries and natural gas processing plants.
Pharmaceuticals	Measuring the level of liquids and powders in various production processes, such as mixers and reactors. Lab Manager Magazine
Low-temperature liquid measurement	Specially for liquid nitrogen, LNG, liquid ammonia and other low temperature environment liquid level measurement. Customized products.
Power Generation	Measuring the level of liquids and solids in power plant boilers, condensers, and cooling towers, such as in coal-fired power plants.
Water and Wastewater	Measuring the level of liquids in tanks and reservoirs, and monitoring the level of wastewater in treatment plants. WaterWorld

These examples demonstrate the wide range of industries that use capacitive level sensors and the variety of applications for which they are used.

Advantages and limitations of capacitive level sensors

The advantages of using capacitive level sensors:

Simple structure without any movable or elastic components. The result is high reliability and minimal maintenance. Under normal circumstances, there is no need to carry out routine major, medium and minor repairs.
A variety of signal output, convenient for different system configurations.
It is suitable for liquid level measurement of high temperature and high pressure containers. And the measured value is not affected by the temperature, specific gravity of the measured liquid, the shape and pressure of the container.
It is especially suitable for the measurement of strong corrosive liquids such as acids and alkalis.
There are perfect over-current, over-voltage, power polarity protection.

The limitations of capacitive level sensors

Full working condition measurement cannot be implemented. There is “false water level” measurement, and it takes a long time to establish a stable differential pressure condition under unstable operating conditions such as boiler start, stop, emptying, continuous row, accident, etc.
Under stable working conditions, due to structural limitations. It cannot solve the compensation problem of system measurement error caused by water side insulation.
Under accident conditions such as boiler shortage and full water. Systematic measurement errors that are too large can have serious consequences.
The construction scale is large and there are winter insulation problems.
The measurement time lag is long. It cannot respond to boiler water level changes immediately. Poor quality of measurement signal conditioning.
Due to the heat release of the condensing cylinder, the cost of use is relatively high.

Read more about: Which Sensor Is Best For Water Level?

Factors to consider when selecting a capacitive level sensor

After so many details. You may want to know, how should I choose a suitable capacitive level sensor? By our years of production experience. It is recommended that you consider the following points.

Material compatibility: Material compatibility is very important because different materials can affect the accuracy of sensor readings or even damage the sensor. For example, materials such as PTFE or stainless steel can be used.
Temperature range: Choosing a sensor that can work within the expected temperature range will ensure accurate readings. For example, common temperature ranges include 80℃, 100℃, high temperature 250℃, low temperature -196℃, etc.
Measuring range: For small measuring ranges, a rod-type probe can be selected. For larger measuring ranges, such as 8 meters or 10 meters, a cable-type probe can be selected.
Installation options: Installation size and location.
Sensitivity: We generally provide a measurement accuracy of 0.5 or 1 level.
Output type: For example, 4-20mA, 0-5V signal output. Or RS485, RS232 communication, etc.
Pressure range: Common tank pressures include -0.1 MPa to 5 MPa. Some high-pressure sensors can be customized to withstand pressures up to 32 MPa.
Special requirements: Such as explosion-proof, hygienic, and other requirements.

By considering these factors, you can ensure that you select a capacitive level sensor that meets the specific requirements of your application.

Of course, except for the capacitance level sensor. Ultrasonic level meter is also a commonly used one. Read More About: Factors To Consider When Choosing Explosion Proof Ultrasonic Level Sensors.

Conclusion

In conclusion, capacitive level sensors are essential components in various industries. As they provide accurate, reliable, and non-contact level sensing. From agriculture to power generation, these sensors have proven to be efficient and effective in providing real-time measurements and controlling industrial processes.

When selecting a capacitive level sensor, it’s crucial to consider factors such as material compatibility, temperature range, measuring range, installation options, sensitivity, output type, pressure range, and any special requirements. Choosing the right sensor for your application will ensure accurate and reliable measurements and improve overall efficiency.

Therefore, if you are considering a capacitive level sensor for your application. You can contact our engnieer, who can help you select the right sensor that meets your specific needs.

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KimGuo11

drurylandetheatre.com

How to Choose the Right Diesel Fuel Level Sensor ?

Posted on February 15, 2023 by KimGuo11

Choosing the right diesel fuel level sensor can be crucial for your business. The diesel fuel level sensor is used on various diesel tanks to detect the diesel level and then display the liquid level. It can also be converted into 4-20mA or switch signal. Used to monitor and control other instruments. There are so many choices in the market, ultrasonic level sensor, radar level meter, etc. Which is the most suitable?

RFQ Level Meters

Step 1. Get to know your tank

To choose a suitable Diesel Fuel Level Sensor, you must first understand the conditions of the tank.

How can we understand your tank? Simply put, a list can be compiled.

Tank size (preferably with a sketch of the tank)
The installation position of the tank. For example, it is a buried tank, an underground tank, or a vehicle-mounted tank.
Tank material
Density of Diesel Oil
Temperature and pressure
Installation position and installation dimensions of Diesel Fuel Level Sensor

With the above conditions, Sino-Inst, as the supplier of Diesel Fuel Level Sensor, can know the condition of the tank.

Step 2. Diesel Fuel Level Sensor Types

Diesel fuel level sensors are devices used to measure the level of diesel fuel in a tank.

There are several types of diesel fuel level sensors, including:

Capacitive smart liquid level gauge is a liquid level (level) transmitter that can be used for liquid, oil, solid, interface and measurement.

Capacitance fuel level sensors have no moving parts, which greatly improves reliability. It is not affected by water vapor, dust or condensation, and has the advantages of stable and reliable long-term operation, high sensitivity, good linearity, high temperature resistance, and high pressure resistance.

Capacitance fuel level sensors are two-wire (loop powered) 4~20mADC measurement signals, easy to adjust, wireless transmission, 485 transmission, etc. It can be widely used in various fields such as petroleum, chemical industry, metallurgy, electric power, papermaking, and pharmaceuticals.

Know more about: Capacitive level sensor working principle

Float level sensor uses magnetic float as the measuring element. Through magnetic coupling, the internal resistance of the sensor changes linearly. The smart converter converts the resistance change into a 4-20mA standard current signal. It can display the percentage of liquid level, the current of 4 ~ 20mA and the value of liquid level.

Remote transmission control room can realize automatic detection, control and recording of liquid level. This instrument is suitable for petroleum, chemical, power, light industry and pharmaceutical industries, such as sewage treatment and medium level measurement in various atmospheric and pressure vessels, especially for underground tanks and tanks.

To choose: Featured Float Level Sensors & Switches

Ultrasonic fuel level sensors are non-contact liquid level measuring instruments that are easy to install and maintain. Used to measure flammable and explosive liquids such as diesel oil and crude oil. Or for measuring the height of liquids in explosion-proof environments. It is widely used in explosion-proof environments such as oil exploration, oil refining, chemical industry, and medicine.

More About: Application 2: Tank Level Monitoring In The Oil And Gas Industry

Radar fuel Level Sensors is also a non-contact continuous measurement liquid level sensor.

Radar level transmitters use radar technology to perform non-contact continuous level measurement. The radar level indicator converts the level into an electrical signal.

The level signal output can then be utilized by other instrumentation to monitor or control. Liquids and solids are commonly measured with this measuring technique. Like: Fly ash silo.

Radar level sensors are divided into: Pulsed radar technology and frequency modulated continuous wave (FMCW) radar level sensors.

Sino-Inst produces 120GHz FMCW radar level sensor, 26GHz radar level meter, 6GHz level meter.

Featured Radar Level Transmitters

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

The gas in the gas collecting cylinder is injected into the liquid Contact with the medium. The pressure is transmitted to the sensor through the air pipe. The direct contact between the sensor and the measured medium is avoided.

Pressure Guided Submersible Level Transmitter’s Diesel Tank Level Measurement.

Magnetostrictive Level Transmitters are used for continuous measurement of liquid level and interface. Magnetostrictive level measurement is currently the best liquid level measurement and control technology.

Sino-Inst’s Magnetostrictive Level Transmitters can provide two independent outputs: interface; overall level. It can be applied when the difference in specific gravity drops to 0.02. Magnetostrictive Level Sensors Commonly used for the measurement of the oil-water interface. And others include acid tanks, propane containers, desalter and sewage tanks.

Step 3. Measurement Needs

OK. Next, we can sort out our needs, and then match the appropriate Diesel Fuel Level Sensor.

Low Cost

If you are looking to get the right Diesel Fuel Level Sensor at low cost. Then you can choose one from Float Level Sensors and Pressure Guided Submersible Level Transmitter.

Small tanks, such as 2 meters or 3 meters high. Float Level Sensors can be used.
Large tanks, such as 15 meters, 20 meters. You can use the Pressure Guided Submersible Level Transmitter.

High Accuracy

If you need the highest measurement accuracy. Then Radar Level Transmitters is a good choice. The 80GHz Radar Level Meter has an accuracy of up to ±1mm.

Maximum measuring range of 120m and a minimum blind zone of 8cm;
3°antenna beam angle;
Suitable for small water tanks or small process accessories in narrow spaces.
Good signal focusing ability can be used for containers with many internal installations.
Measurement accuracy:±1mm

high temperature and high pressure

High temperature and pressure

If you want to measure under high temperature or high pressure conditions. For example, 200 degrees Celsius. Or 10MPa.

Then you can choose the appropriate one from Capacitive level sensor, Radar level meter, and Magnetostrictive level transmitter.

contact measurement

If you specified that contact measurement is optional. Then you can choose from Float Level Sensors, Pressure Guided Submersible Level Transmitter, Magnetostrictive Level transmitter, capacitive level sensor, etc.

non-contact measurement

If you specify non-contact measurement. Then you can choose the explosion-proof ultrasonic level meter. Or radar level meter.

Output switching value

If you need to measure the diesel oil level, then output the switch signal for the switch of the pump or other components.

Then you can choose the float level switch. Or configure secondary instruments for ordinary liquid level meters, Output switching value.

The tank cannot be opened

If the tank cannot be opened. Then you can choose an externally attached ultrasonic level sensor.

The sensor can be directly attached to the bottom of the tank. easy installation.

Large range

If the tank is larger. The height exceeds 15 meters. Then it is recommended to choose the radar level meter. Or Stainless Steel Level Sensor-Pressure Guided Submersible Level Transmitter.

oil-water interfac

If your tank is mixed with oil and water, it is the oil-water interface that needs to be monitored. Then you can choose: capacitive liquid level sensor or magnetostrictive liquid level transmitter.

Oil-water Interface Level Measurement Guide

Tank volume monitoring

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

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

Combined with Sino-Inst’s volume recorder. It can collect, display and convert the liquid level of various regular and irregular tanks in the industrial field into the corresponding tank volume. It is suitable for monitoring, controlling and collecting various process parameters.

Monitoring liquid volume solutions.

We simply enumerate our common measurement needs here, based on our experience.
If you have other measurement needs, you can contact our engineers for consultation.

Featured Diesel Fuel Level Sensors

LT series Digital Display Magnetostrictive liquid level sensor

HS-2000 Ultrasonic Tank Level Sensor-External Mounted

Ultrasonic Oil Level Sensor-External Paste-Truck Fuel Tank

**SIRD70 Guided Wave Radar Level Transmitters**

**ULT-100 Explosion-proofUltrasonic Level Indicator**

**Pressure Guided Submersible Level Transmitter**

Submersible Level Transducer – First Choice for Water Level

Posted on February 13, 2023 by KimGuo11

What is a submersible level transducer?

Submersible Level Transducer is a type of transmitter that can directly measure the liquid level by putting the sensor into the tank, water or oil.

Submersible Level Transducer can also be called “static pressure level transmtter, liquid level transmitter, liquid level sensor, water level sensor”

RFQ Level Meters

Featured Submersible Level Transducers

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

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

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

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

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

**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.

**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.

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

Learn More About Submersible Level Transducer

Submersible level Transducers are based on the principle that the measured static pressure of a liquid is proportional to the height of the liquid. Use the piezoresistive effect of diffused silicon or ceramic sensitive elements to convert static pressure into electrical signals.

The basic working principle of the submersible level Transducer is hydrostatic level measurement.

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

The proportional relationship between them is reflected by the formula P=ρgh.
Where P=pressure, ρ=medium density, g=gravitational acceleration, h=depth of measuring point.

Therefore, the physical quantity measured by the input level Transducer is actually pressure. It can be known from the calibration unit mH2O of the submersible level Transducer.

The actual liquid level must be obtained through conversion after knowing the two parameters of density and acceleration of gravity. After temperature compensation and linear correction, it is converted into a 4-20mADC standard current signal output.

Such conversion is usually performed by secondary instruments or PLC in the industrial field.

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

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

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

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

If you need non-contact measurements. Then you can choose to use ultrasonic level meter. Ultrasonic technology is not only used to measure level, but also can be used to measure depth.

Submersible Level Transducers are widely used in water level measurement. Including fire pools, water supply tanks, wastewater treatment, deep wells, etc. Especially deep wells.

Mainly because of the following advantages of Submersible Level Transducers:

Low cost. Submersible Level Transducers are relatively the lowest cost liquid level meter;
High precision and long-term stability. Because of the use of ceramic capacitors and diffused silicon measurement units;
It is extremely convenient to install and use. Submersible Level Transducers are directly put into the measured liquid, and the sensor part can be fixed by flange or bracket;
Long service life. High-precision measurement can be performed from water, oil to paste with high viscosity. It is not affected by the foaming, deposition and electrical characteristics of the measured medium. Wide range of temperature compensation.
It can meet various working conditions. Can change the material, measure sewage, corrosive liquid. Can meet IP68. Can meet explosion-proof etc.

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

Contact Support

Frequently
Asked
Questions

Help Center

A submersible water level sensor works by measuring the pressure of the water column above it. The sensor is placed inside a water tank or well and connected to a data logger or monitoring device. As the water level changes, the pressure at the sensor changes, allowing it to accurately measure the height of the water column. This information is then transmitted to a monitoring device which can display the water level in real-time.

The best sensor for measuring water level will depend on the specific application and the environment in which it will be used. For example, submersible pressure sensors are ideal for measuring the water level in a tank or well, while ultrasonic sensors are better suited for surface water level applications. It’s important to consider factors such as accuracy, reliability, and cost when choosing the right water level sensor for your needs.

A hydrostatic water level sensor works by measuring the pressure of a fluid column, typically water, relative to atmospheric pressure. The sensor is placed inside a tank or well and connected to a monitoring device. As the water level changes, the pressure at the sensor changes, allowing it to accurately measure the height of the water column. The monitoring device then displays the water level in real-time.

There are several types of sensors that can be used to measure water level in a tank, including submersible pressure sensors, ultrasonic sensors, and float sensors. Each type of sensor has its own unique advantages and disadvantages, so it’s important to consider the specific needs of your application when choosing the right sensor. For example, submersible pressure sensors are often the preferred choice for measuring water level in a tank because of their accuracy and reliability.

The Submersible Level Transducer is based on the principle that the measured static pressure of a liquid is proportional to the height of that liquid. It is made of advanced isolated diffused silicon sensitive element or ceramic capacitive pressure sensitive sensor. Convert static pressure to electrical signal. After temperature compensation and linear correction. A pressure sensor for measuring liquid level that is converted into a standard electrical signal (generally 4-20mA/1-5VDC).

Submersible Level Transducer selects high-quality diffused silicon quartz thin-film sensor as the measuring element. Using a stainless steel housing, the top of the sensor diaphragm is protected with a through-hole stainless steel cap. And make the liquid contact the diaphragm smoothly. The measured liquid level is not affected by changes in the external atmospheric pressure. Accurate measurement and good long-term stability. It can be directly put into water, oil and other liquids for long-term use.

Submersible Level Transducer is widely used in water level measurement. It can also measure corrosive liquids such as hydrochloric acid, sulfuric acid, nitric acid, hydrofluoric acid, sodium hydroxide, hydrogen peroxide, or chemical and electroplating wastewater.

If you need to purchase Submersible Level Transducer, or have any questions about the technology, use and installation of Submersible Level Transducer, please feel free to contact our engineers.

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KimGuo11

drurylandetheatre.com

Shop Radar Level Sensors for Solids: 5 Must-Know Factors

Posted on February 11, 2023 by KimGuo11

Choosing the Right Radar Level Sensors for Solids Materials.

When it comes to measuring the level of solid materials, there are many options available. But radar level sensors have become one of the most popular choices. This is due to their accuracy, reliability, and ability to measure the level of materials in various storage containers, including tanks and silos. However, with so many different radar level sensors on the market, it can be challenging to choose the right one for your specific needs. In this blog, we’ll explore the key factors to consider when selecting a radar level sensor for solid materials.

RFQ Radar Level Meters

This is based on our many years of experience in level measurement. Hope this helps.

1. Operating Frequency

Radar level sensors use radio waves to measure the level of solid materials. And the frequency of these radio waves determines the accuracy and reliability of the measurement.

There are two main types of radar level sensors – pulse radar and frequency modulated continuous wave (FMCW) radar. Pulse radar operates at a higher frequency and provides more accurate measurements, but it is also more expensive. FMCW radar operates at a lower frequency and is less expensive, but it is less accurate.

When choosing a radar level sensor, consider the level of accuracy required for your application, as well as your budget.

Our most common ones are 6GHz-26GHz-80GHz-120GHz. You can refer to more 26GHz-80GHz-120GHz radar level meter parameter comparison. List of Radar Level Sensors

2. Material Properties

The properties of the solid material you are measuring will also impact your choice of radar level sensor.

The dielectric constant of the medium is also easy to be ignored, and attention should be paid to the medium with a small dielectric constant.

The problem of antenna hanging can not be ignored. Due to the strong adhesion of steam belt material and most mud, the radar level gauge will encounter the problem of antenna hanging.

The coating has no effect on the medium with small dielectric constant, but it will affect the medium with large dielectric constant. Influence of Dielectric Constant on Radar Level Meter

Introducing high-pressure wind to blow the antenna near the antenna can prevent material hanging. Some devices can be optionally equipped with a dust cover. At normal temperature, just cover the antenna with plastic film and clean the hanging material regularly.

Also, if the material is very dense or has a high moisture content. It can affect the accuracy of the measurement. If the material is very abrasive, it can wear down the sensor over time.

Consider the properties of the material you are measuring when choosing a radar level sensor.

3. Environment

The environment in which the radar level sensor will be installed can also impact its performance.

For example, if the sensor will be installed in an area with a lot of dust or steam. This can affect the accuracy of the measurement.

If the sensor will be installed in an area with high temperatures. Make sure the sensor is designed to operate in these conditions. Consider the environment in which the sensor will be installed when choosing a radar level sensor.

4. Storage Containers

The type of storage container in which the solid material is stored will also impact your choice of radar level sensor.

For example, if the container is very large, a long-range radar level sensor may be required. If the container is very tall, a high-level radar level sensor may be required.

Consider the size and shape of the storage container when choosing a radar level sensor.

The first is the range problem. When choosing a radar, there is often a misunderstanding, that is, the selected range should only be greater than the height of the tank. In fact, the range marked on the radar may be its maximum range.

The type selection also depends on the characteristics of the container. For example, whether the surface of the storage tank is smooth or corrugated, or even stirred.

The actual level that can be measured by the same radar level gauge is very different in different situations. For example, a certain liquid level gauge has a range of 30m. It is only a smooth surface liquid that can be measured to 30m. Once it is used in a non-stirred and rippled On the buffer tank, the result is different. When using it to measure the material level of more than ten meters of stirring, the low material level is often not measured. This is actually because the selection range is not enough. After increasing the range, the problem is solved.

5. Safety Considerations

Finally, safety considerations must also be taken into account when choosing a radar level sensor.

For example, if the material being measured is flammable, make sure the sensor is designed for use in hazardous areas.

If the material is toxic, make sure the sensor is designed to prevent contamination. Consider the safety requirements for your application when choosing a radar level sensor.

Selection of Radar Level Sensors under special working conditions

For example, in open pools, water tanks, and natural water. The working conditions are not complicated. There are no disturbance sources such as agitation, bubbling, steam, and vacuuming. The liquid level is relatively stable. Generally, a radar level gauge with a high cost performance is used.

It is recommended to use a radar level gauge with a rod antenna. The radar is small in size and easy to install, with a range of 10m or 30m. The communication interface can be HART or MODBUS, which is convenient for long-distance signal transmission.

The guided wave radar level gauge is used in the application of sealed small tanks. High measurement accuracy and fast response. To monitor rapidly changing liquid levels.

Installation should pay attention to avoid close to the warehouse wall and obstacles.

If there are stirring blades inside, it is recommended to use a bypass pipe for installation.

For the working conditions with severe liquid level fluctuation, it is recommended to use coaxial guided wave radar level gauge.

For liquids with high viscosity, guided wave radar level gauge is not recommended. It is recommended to use a non-contact high-frequency radar level gauge with purge.

The flange and waveguide rod or waveguide cable of the guided wave radar level gauge are generally made of SS316L material. Suitable for common corrosive liquids. PTFE material can be used when encountering strong corrosive liquids such as hydrochloric acid and nitric acid.

The standard flange of the radar level gauge is made of SS304. 316L can be used for common corrosive liquids. When encountering strong corrosive liquids such as hydrochloric acid and nitric acid, PTFE can be used. As for the material of the antenna, a PTFE rod antenna or a full PTFE sealed convex lens antenna is generally used.

Level measurement in liquids containing foam. The type selection needs to be selected according to the size and density of the foam and the thickness of the foam layer:

In general, the higher the foam density, the thicker the foam layer. The radar wave emitted by the radar level gauge is less likely to penetrate the foam layer. Most of the transmitted waves and reflected waves are lost during the penetration process, resulting in extremely weak echoes reaching the real liquid level surface. Therefore, it is necessary to choose a high-energy high-frequency radar. And a convex lens antenna with strong focusing ability to make up for the energy loss in the penetration process.

Of course, if the foam layer is particularly thick, even high-frequency radar level gauges are difficult to penetrate. Therefore, if the radar level gauge is used to penetrate the foam to measure the liquid level, it is suitable for the working conditions of large foam and thin foam layer. If it is used to measure the liquid level on the surface of the foam without penetrating, you can choose a conventional radar level gauge or a guided wave radar level gauge.

For working conditions that require measuring the interface between foam and liquid, it is generally recommended to use a guided wave radar level gauge. The premise of selection is that the dielectric constant of the upper layer of foam needs to be much lower than that of the lower layer of liquid. It is recommended that the difference is more than 10, and the thickness of the foam layer must be <100mm.

In the steam environment, it has a great influence on the guided wave radar level gauge. Especially the working conditions of high temperature and high pressure will cause the propagation speed of the radar wave transmitted along the probe rod to slow down during the measurement process of the guided wave radar level gauge. Therefore, it is necessary to choose a guided wave radar level gauge with steam compensation.

The guided wave radar level gauge has a maximum temperature resistance of +450°C and a pressure resistance of 160bar. For the selection of radar level gauges, the frequency of high frequency radar level gauges is higher. The stronger the penetration, the energy loss in the process of penetrating steam is relatively small.

At the same time, the convex lens antenna is used to resist the interference of steam condensation on the antenna, and the performance is more stable and reliable.

In the high temperature working condition, there is a working condition with thick dust interference. It is recommended to use high frequency 120GHz, continuous frequency modulation wave FMCW, convex lens antenna radar level gauge.

For high temperature conditions, it is recommended to use a high temperature isolation device. With nitrogen cooling interface, the maximum temperature resistance is 1200°C. Moreover, the radar level gauge is completely isolated from the inside of the tank, making inspection and maintenance safer.

If you cannot find an answer to your question in Selection of Radar Level Sensors for Solids, you can always contact us and we will be with you shortly.

Contact Support

Featured Radar Level Meters

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

**SIRD-903 26 GHz Radar level Sensor -Dust solid level measurement**

**SIRD-906 Radar Sanitary Level Sensor**

**SIRD-806 Radar High Temperature Level Sensor**

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

Frequently
Asked
Questions

Help Center

A level sensor for solid materials is a handy device designed to measure the amount or height of solid materials, such as grains, powders, or pellets, within a storage container or bin. These sensors help manage inventory levels, prevent overfilling, and ensure the smooth functioning of various industrial processes.

To measure the level of solids, you can use a variety of devices, such as ultrasonic, radar, capacitive, and vibrating rod level sensors. Each type of sensor has its own advantages and is best suited for specific applications or materials, so choosing the right one for your needs is essential.

Measuring solid levels involves using a level sensor that sends out a signal, such as sound or radio waves, and then receives the reflected signal back. By calculating the time it takes for the signal to return, the sensor can determine the distance between itself and the solid material’s surface. Different types of level sensors may use different methods to achieve this, but the underlying concept remains the same.

The choice of sensor for controlling the level of solids in a bin depends on factors such as the type of solid material, the size and shape of the bin, and the desired level of accuracy. Common choices include ultrasonic, radar, capacitive, and vibrating rod level sensors. Each sensor has its own benefits and limitations, so it’s important to select the one that best fits your specific application and requirements.

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

Conclusion

Usually level measurement media include water, slurry and powdery materials. The environment has a good static liquid level as well as a liquid level where a lot of vapor builds up. There are materials with severe dust and more steam environment. There is also pressure. There are also open ones. In short, all kinds of complications abound. So if you want to make good use of the radar level gauge and maximize its value, you must pay attention to these issues.

Choosing the right radar level sensor for solid materials requires consideration of several key factors. Including operating frequency, material properties, environment, storage container, and safety considerations. By taking these factors into account, you can choose a specific me radar level sensor that you needs and provides accurate and reliable measurements.

Can Flow Meters Be Installed Vertically? Vertical Flow Meters

Posted on February 8, 2023 by KimGuo11

Vertical Flow Meters refers to a type of flow meter installed in vertical pipes. Can Flow Meters Be Installed Vertically? We all take this into consideration when installing flow meters. In fact, most flow meters can be installed vertically. However, certain measurement conditions also need to be met. Next, let’s analyze together.

RFQ Flow Meters

Electromagnetic flowmeter is the most widely used type of flowmeter. Can the electromagnetic flowmeter be installed vertically?

vertical installation of magnetic flow meter

Electromagnetic flowmeters can be installed horizontally or vertically. However, vertical installation needs to pay attention to the following aspects, whether it is installed at the water inlet or the water outlet.

Standard installed in the middle of the vertical position where the water flows upwards. This installation complies with gravity.
If it is installed downstream, it will not be a full pipe, and the water flow from bottom to top is always full. This facilitates accurate measurement of the flow meter.
The straight pipe section is required to be 10D in front and 5D in back to ensure the use and accuracy requirements of the electromagnetic flowmeter.

Electromagnetic flowmeter vertical installation requirements:

Installed at the inlet of the pipeline (that is, upstream), so that the pipeline is always full.
The electromagnetic flowmeter should be installed in the lower part of the horizontal pipeline, vertically upward. Avoid installing at high places and vertically downward positions in the pipeline.
Requirements for straight pipe section: inlet/outlet straight pipe section: inlet ≥ 10×DN; water outlet ≥ 5×DN
In order to facilitate the detection of the flowmeter, a bypass channel is set in the measuring pipeline.
Grounding point requirements: In order to make the instrument work reliably, improve the measurement accuracy, and not be disturbed by strong external electromagnetic fields, the sensor should be well grounded, and the grounding resistance should be less than 10 ohms.

Precautions when choosing the installation location of the electromagnetic flowmeter:

Try to avoid ferrous objects and equipment with strong electromagnetic fields (such as large transmitters and generators).
The flow meter should be installed at the rear of the pump, never on the suction side, and the valve should be installed on the downstream side of the flow meter.
It should be installed in a dry and ventilated place as much as possible to avoid sun and rain. Avoid ambient temperatures above 60°C and relative humidity above 95%.
Choose a place with convenient installation and maintenance and convenient activities.

Featured Vertical Flow Meters

**Low temperature Turbine Flowmeter-Liquid Nitrogen Flow Meter**

In addition to electromagnetic flowmeters, other flowmeters will also have the same installation questions.

Read more about: Different Types of Flowmeters – Technical and Application Analysis

Can ultrasonic flow meters be installed vertically?

Ultrasonic flowmeters can be installed vertically.
However, there are conditions. If the pipeline is vertical, then the vertical installation of the ultrasonic flowmeter requires the liquid flow to be bottom-up. It is also best to ensure that the pipeline is full during the measurement period. Otherwise, the error is quite large.
Do not install vertically if the liquid flow is from top to bottom.

Can the turbine flowmeter be installed vertically?

The turbine flowmeter has many good functions, and it can have different application characteristics in different environments. Today we will talk about can the turbine flowmeter be installed vertically?

First of all, what we need to know is that it is very important to choose a suitable installation location to ensure the good use of the turbine flowmeter. In general, vertical installation and horizontal installation are both possible.

However, vertical installation needs to ensure that the turbine flowmeter is installed just above the direction of the liquid and in the direction of the liquid.

Second, debugging is required after installation. In this way, various problems that may arise during use can be avoided. The service life of the flowmeter is extended. And there is no need to worry about machine failure.

Can the vortex flowmeter be installed vertically?

The fluid flows from top to bottom, and the vortex flowmeter can be installed vertically. Just make sure there are no air bubbles in the tubing.

But one thing to remember is to make it clear with the supplier in advance when purchasing, so as not to affect its use in time. Although the vortex flowmeter can be installed vertically, you must pay attention to the installation direction of the flowmeter during installation, and it cannot be reversed.

When the medium measured by the vortex flowmeter is different, its installation direction is also different. For example, when measuring liquid flow, the installation direction needs to be from bottom to top. When measuring gas flow, the installation direction needs to be installed from top to bottom.

Can the orifice flowmeter be installed vertically?

When the orifice flowmeter is installed vertically, attention should be paid to the flow direction of the gas. Gas flows from bottom to top, which is also an important consideration for vertical installation of orifice flowmeters. Of course, it is also possible to flow from top to bottom.

In theory, when measuring gas flow, the orifice flowmeter is installed horizontally. The installation position of the flow sensor should be selected at a high place in the pipeline. to make sure the tube is full. It is not recommended to install in the low part of the pipeline. Because liquid will accumulate at the bottom of the pipe, the measurement will be inaccurate.

Can the mass flow meter be installed vertically?

Mass flow meters can be installed on horizontal or vertical pipes. The mounting orientation depends on the application.

Mass flowmeters with some geometries (except for straight tubes) will accumulate some solid or gaseous matter in a certain installation orientation.

If it must be installed vertically and the fluid flows from top to bottom. Measures must be taken to ensure that gas cannot enter the sensor from the sensor inlet pipe.

More About Flow Meter Installation and Calibration

How to Calibrate a Flow Meter？Calibration Flow Meters
A flow meter is an instrument used to measure and indicate the volume or mass of a gas or liquid. Simply put, it is an instrument used to measure the…
Turbine Flow Meter Installation Guidelines and Troubleshooting
Turbine Flow Meter Installation Guidelines and Troubleshooting is compiled based on our Sino-Inst’s many years of experience in producing and supplying turbine flow meters.Whether it is a liquid turbine flow…
Collection of Industrial Insertion Flowmeter Types
What is an insertion flow meter? Insertion flowmeter is a type of flowmeter in which the measuring probe is inserted into the pipe to measure the flow. This is a…
Upstream and Downstream Flow Straight Pipe Requirements-for Flowmeter Installation
Upstream Pipe and Downstream Flow Straight Pipe Requirements refer to the length of straight pipe before and after the installation location of the flowmeter. In order to ensure that the…
Guide: Magnetic Flowmeter Installation
Magnetic flowmeters are mainly used to measure the flow of conductive media with good fluidity. Magnetic flowmeters are divided into insertion type and pipeline type. Pipeline electromagnetic flowmeter and insertion…
What is Flow Meter K-factor? And how to calculate?
What is the K-factor in a flow meter? K-factor is a coefficient calculated by calibrating and comparing with other measuring devices that meet the accuracy requirements. The Flow Meter K-factor…
Magnetic flow meter calibration
Why is magnetic flow meter calibration necessary? The accuracy of the magnetic flowmeter has been calibrated by the calibration line when it leaves the factory. However, at the use site,…

Sino-Inst offers over 50 flow meter for flow measurement. About 20% of these are magnetic flow meters, 20% of these are turbine flow meters, 20% of these are vortex flow meters. And 40% are Ultrasonic flow meter and mass flow meter.

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

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

If you need to purchase a flowmeter, or you have doubts about the installation location of the flowmeter. You can contact our engineers to provide technical support.

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KimGuo11

drurylandetheatre.com

What Is Radar Level Transmitter Frequency Range? What Is the Effect?

Posted on February 7, 2023 by KimGuo11

What is radar level transmitter frequency range? When purchasing radar level gauges, users often encounter different specifications and models. The most common are different measurement frequencies. Such as 8GMHz, 26GMHz, 80GMHz, 120GMHz, etc. All are radar gauges, why are the frequencies so different? What are the advantages and disadvantages of different frequency products? I hope that through the introduction of this article, you can choose a radar level gauge product suitable for measuring working conditions when purchasing a radar level gauge.

RFQ Level Meters

classification of radar level transmitter frequency range

The radar level Transmitter is a measuring instrument based on electromagnetic wave emission and reflection reception to judge the level of material. According to the type of transmitted signal, it is divided into two categories: pulse radar and frequency modulation continuous wave radar.

Pulse radar is measured based on time domain reflectometry (TDR). That is, the radar antenna emits high-frequency pulse electromagnetic waves, which propagate at the speed of light.

When encountering the surface of the measured medium, part of the pulse of the radar level Transmitter is reflected to form an echo back To the pulse emission device. The distance between the emission device and the surface of the measured medium is proportional to the propagation time of the pulse. The height of the liquid level is obtained by calculation.

Frequency modulation continuous wave radar is based on the frequency difference of frequency modulation continuous wave (FMCW). That is, the radar uses synchronous frequency modulation technology. The transmitter and receiver are installed on the top.

The transmitter emits a microwave signal whose frequency has been linearly modulated to the liquid surface. When the microwave When the signal propagates down to the liquid surface and is reflected back to the receiver. Due to the time delay, the frequency of the transmitted signal changes. The distance passed by the radar wave is calculated by the frequency difference between the received reflected wave and the transmitted wave.

Generally speaking, the larger the frequency modulation range, the longer the measurement distance, the better the linearity and the higher the resolution.

Microwave refers to electromagnetic waves with frequencies ranging from 300MHz to 3x103GHz, and their corresponding wavelengths range from 0.1mm to 1m. This segment of the electromagnetic spectrum includes decimeter waves (frequency range 300MHz~3GHz), centimeter waves (frequency range 3~30GHz), millimeter waves (frequency range 30~300GHz) and submillimeter waves (frequency range (300MHz~3x103GHz) ) four bands.

The common radars on the market are 6GHz, 26GHz and 80GHz that appeared in the last two years. The wavelength of the 6GHz radar is 50mm, and the wavelength of the 26GHz radar is 11mm, both of which are centimeter wave radars. They belong to microwave radars that work in the centimeter wave band for detection. The wavelength of the 80GHz radar is 4mm, which belongs to the millimeter wave radar working in the millimeter wave band.

Comparison of different frequency radar level transmitters

The frequency of the guided wave radar level meter is generally 6.3GMHz and 8GMHz, which are centimeter wave radar waves.

In terms of operating principle, guided wave radar is very similar to conventional radar that propagates electromagnetic waves through space.

The basis of guided wave radar Level Transmitter is the principle of time domain reflection of electromagnetic waves.

Through this principle, buried cables and high cable breaks buried in walls can be found.

When measuring a broken end of a cable, the electromagnetic pulse signal sent by the TDR generator propagates along the cable, and when it encounters a broken end, a measurement reflected pulse will be generated.

At the same time, fundamental pulses are also caused by changes in the impedance of the total length of the preset cable in the receiver.

Compared with the basic pulse, the reflected pulse can accurately measure the position of the broken end.

Guided wave radar Level Transmitter Advantages:

The ability to suppress steam and foam is strong, and the measurement will not be affected.
High performance, high precision, high reliability, low maintenance and long service life.
The porosity of solid materials is not affected by liquid density, temperature and dust.

Guided wave radar Level Transmitter Disadvantages:Guided wave radar Level Transmitter is a contact radar, and generally cannot be used in places with high hygiene requirements such as food, biology, and pharmaceuticals.

The frequency of the pulse radar Level Transmitter is generally 26GGMHz, which is a centimeter wave radar wave.

High-frequency pulse radar is used to modulate microwave source signals with narrow pulses. After reflection on the surface of the medium, pulse waves of fixed frequency (ie, carrier frequency) are emitted in the form of beams.

The time course of the pulse determines the distance from the transmitting antenna to the surface of the medium.

For ordinary pulse radar, the accuracy can generally reach ±3~±10mm;

For ordinary pulse radar, the range can generally reach 30M;

For ordinary pulse radar, physical properties such as volatilization and crystallization of the measurement medium may affect;

Advantages of Pulse Radar Level Transmitter:

Integrated structure, non-contact horn.
The measurement range is large and the measurement error is small.
Advanced multi-functional software can eliminate the interference of agitators or other obstacles, and is not affected by temperature, dust, and steam.
Wide range of applications, mostly used in oil storage tanks, asphalt storage tanks, petroleum liquefied gas, reactors, measuring the continuous liquid level of sewage tanks in petrochemical industry and blast furnace steel in steel industry, and measuring in the brewing process. Food industry, pharmaceuticals Liquid level measurement is also widely used in other fields.

Disadvantages of Pulse Radar Level Transmitter:

Most economical pulse microwave level gauges use 55.8GHz or 6.3GHz with a large radiation angle (about 30°), and the container wall or internal components are prone to interference echoes.
Although increasing the size of the horn antenna can slightly reduce the emission angle. However, due to the increased volume, it is inconvenient to use.
When there is an agitator in the tank, when obstacles such as pipelines appear, these obstacles will also reflect electromagnetic wave signals, thus generating false liquid level signals.
When the liquid level fluctuates and bubbles, the situation becomes more complicated. The signal scattering is separated from the transmission or absorbs most of the energy. This results in a weak or no signal returning to the radar Level Transmitter receiving antenna.

The frequency of continuous wave radar Level Transmitter is generally 80GMHz, 120GMHz, millimeter wave radar wave.

Frequency modulation continuous wave radar, the signal is sent from the antenna, and the echo is received by the antenna after being reflected by the measured medium.

The transmitted signal frequency is proportional to the difference in frequency received by the echo.

After FFT, the frequency difference is converted into a spectral difference, and then converted into a measurement distance.

The total range minus the measurement distance is the actual liquid level.

For FM CW radar, the accuracy can reach ±1mm.

For FM continuous wave radar, the maximum range can reach more than 1000M.

For frequency-modulated continuous wave radar, its beam angle is small, its energy is concentrated, and its permeability is strong. It is suitable for harsh conditions such as violent liquid level fluctuations and stirring.

Advantages of FM Radar Level Transmitter:

Due to the characteristics of the FM continuous radar itself, compared with the pulse radar, it has the advantages of small blind spots and low interference probability.

In addition, the radar of the system can perform speed measurement, distance measurement, angle measurement and other operations at the same time, and can obtain rich target positioning information.

It is worth noting that the frequency of the difference frequency output signal of the radar is low, which reduces the difficulty of hardware design for signal processing.

Frequency modulated continuous wave radar can be widely used in scenarios such as vehicle collision avoidance, liquid level measurement, assisted parking, and vital sign detection.

The successful development of radar is for the national economy. It plays a great role in promoting the development of national defense.

At present, the 1200 millimeter-wave radar Ghz frequency band is mainly used, which greatly reduces the antenna size and continuously improves the product integration.

Using 120GHz combined with a lens antenna, the beam angle of the radar can be narrowed to 4°. The internal measurement is close to the lidar, and the anti-interference performance is much better than that of the lidar.

Disadvantages of FM Radar Level Transmitter:

The manufacturing cost of radar Level Transmitter is relatively high.

The pulse/FM radar antenna is made of stainless steel and PTFE, and the maximum operating temperature of PTFE is 200° and the maximum pressure is 4MP. When the guided wave radar is composed of stainless steel and ceramics, the maximum operating temperature is 400° and the maximum pressure is 40MP.

The low-frequency radar level transmitter is still the first choice for the low-frequency radar level transmitter and cannot be completely replaced.

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

Effect of radar level transmitter frequency range on measurement

The radar level gauge emits electromagnetic waves through the antenna. The higher the frequency of the electromagnetic wave, the higher the energy of the electromagnetic wave. The shorter the wavelength, the more obvious the scattering phenomenon. Conversely, the lower the energy, the longer the wavelength, and the energy is not easily absorbed by the gas phase layer.

For the same size antenna, a liquid level sensor with a wavelength of 1.2 cm and a frequency of 26 GHZ has a gain of 6 times higher than that of a liquid level sensor with a wavelength of 3 cm and a frequency of 10 GHZ. (Remarks: Antenna gain is a parameter indicating the degree of radiation concentration of a directional antenna).

The overall beamwidth of a radar level gauge is inversely proportional to the frequency of the device. Therefore, for the same diameter antenna, if the frequency of the radar level gauge is increased, the beam width will be lower than that of the lower frequency equipment, and the narrow beam can minimize the influence of the nozzle, tank wall and interference.

At the same time, the measurement range of the radar level gauge is also affected by factors such as frequency, antenna size, dielectric constant of the liquid, and process conditions.

Featured Radar Level Transmitters

**SI-FMF11 FMCW Radar Level Transmitter 120GHz**

**SIRD-901 Radar Corrosive Liquid Chemical Level Sensor**

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

The difference in application of radar level transmitter frequency range

Dirty and polluted environment

With long-term use, dirt and pollutants accumulated on the antenna will affect the strength and direction of the radar signal. For high frequency signals, any dirt that covers the antenna will absorb more energy, and the direction of the beam may change. This results in a loss of signal strength. So, low-frequency and medium-frequency technologies are more suitable.

Storage tanks with condensate and/or steam

Condensation and steam can cause reflections on product surfaces to be masked by the “noise” of water droplets. This is more of a problem for high frequency signals. So mid and low frequency techniques are a better choice. Antennas with flat, horizontal surfaces should always be avoided for condensation.

High steam and agitation

Be sure to choose the 80G millimeter-wave radar level meter. The 80G radar level meter has a high transmission frequency and has good penetration and is not affected by steam. The 2° transmission angle can effectively avoid the interference of the stirring blade. The unique echo Tracking algorithm avoids reading multiple echoes when the material level is high.

Applications with turbulence, waves and ripples

Waves and ripples are often found on the surface of process liquids in large tanks. And this turbulence is especially detrimental to high-frequency measurements. Low and mid frequency level instruments emit longer wavelengths, making them perform better.

Foam application

Like dust and condensation, a layer of foam on top of the liquid can absorb the radar signal, making accurate measurements more difficult. Low frequencies work best with thick foams, such as beer, molasses, or latex. For lighter foam, the mids perform well. High frequency techniques should be avoided in foam applications.

Bulk liquid storage tank

Many bulk storage tanks use floating roof tanks that require level measurement through stilling pipes. Low frequency radars are preferred for these applications as they are less sensitive to buildup on pipe walls. Except in not perfectly straight tanks and pipes. High frequency radars would have difficulty in this situation.

Small and medium container

These vessels are often up to 20 meters (m) high and often present challenging conditions. such as condensation, contamination, turbulence and foam. IF technology is a good choice in this tank because it combines small antennas with good reliability.

Small tank/bucket

In small tanks approximately 0.5 to 1.5 m high, the size and position of the nozzles may be restricted. Short measurement ranges and the need for small antennas mean that HF and MF technologies are attractive options for these applications.

Solid level

For measuring the level of solids, the optimum frequency depends on the application. Low and mid frequencies can handle dust, condensation and coarse solids. High frequency is suitable for fine powder.

Condensation is often challenging for high-frequency radars. But with solids another problem arises: Condensation combined with certain types of solids can lead to rapid buildup of material. This quickly clogs the small nozzle opening and covers the small antenna of the high frequency radar.

Guided Wave Radar Level Transmitter Calibration and Troubleshooting

Posted on February 6, 2023 by KimGuo11

The guided wave radar level transmitter is suitable for small range storage tanks, complex tanks with geometric shapes and internal obstacles. Suitable for applications with steam, buildup, foaming, condensation.

After the microwave pulse is guided down the probe to reach the material, part of the signal is reflected back, and the material level is obtained by measuring the time difference between the signal transmission and reception.

In actual use, we may encounter some inaccurate measurements. Next, we introduce guided wave radar level transmitter calibration and troubleshooting. Hope it works for you.

RFQ

Level Meters

Guided Wave Radar Level Transmitter Calibration

Through the HART handheld programmer. However, the HART handheld programmer has its adjustment range. It is not applicable to all products. The combined measurement range is the corresponding value of 4-20mA.
Adjust the module by hand. Its function is equivalent to an analysis and processing instrument. The programmer consists of keys and an LCD display. Adjustment menus and parameter settings can be displayed.
By debugging the software. The guided wave radar level transmitter can be debugged through software.
The process is: mainly use HART software for debugging. A meter driver is required. Among them, when using software debugging, power up the radar instrument with 24VDC. At the same time, add a 250 ohm resistor to the front end of the HART adapter. If the instrument is powered by an integrated HART resistor, that is, the internal resistance is 250 ohms, no additional external resistance is required. At this time, the HART adapter can be connected in parallel with the 4–20mA line.

The above are relatively common debugging methods and means for guided wave radar level transmitters. You can correspond to your actual situation and judge the most suitable method for you to use. Do it last. Remember to be careful when choosing a method, otherwise errors are prone to occur.

Guided Wave Radar Level Transmitter Troubleshooting

Guided Wave Radar Level Transmitter has many advantages in the level meter field. It generally adopts an integrated design, no moving parts, no mechanical wear, and long service life. And it can be used for level measurement of almost all liquids. However, in the process of use, there will still be inaccurate measurements. What’s the matter?

Probe scarring and frequent failures

Solution: The first solution is to increase the installation position of the Guided Wave Radar Level Transmitter probe. However, if the installation condition is limited and cannot be increased, the method of interlocking the liquid level measurement value with the pump of the tank can be used to solve the problem. This problem. Reduce the maximum liquid level set value by about 0.5m. When the liquid level reaches the maximum value, you can stop or start the discharge pump.

The effect of foam on measurement

Solution: Both dry foam and wet foam can reflect the radar wave of the Guided Wave Radar Level Transmitter, which has no effect on the measurement. But neutral foam absorbs and diffuses radar waves. Reflections that seriously affect echoes or even no echoes.

Therefore, when the surface of the medium is dense and thick foam, the measurement error of the Guided Wave Radar Level Transmitter will be large or impossible to measure. It is recommended to replace other suitable type of level meter.

Antenna scarring

Solution: The hanging material with a small dielectric constant has no effect on the measurement in a dry state. However, the hanging material with a high dielectric constant will affect the measurement. Blowing with compressed air (or flushing with clean water) is recommended, and cooled compressed air can reduce the temperature of flanges and electrical components. Although alkaline scabs can also be cleaned with an acidic cleaning solution, level measurements cannot be taken during cleaning. More about Advantages of Coaxial Probes.

Guided Wave Radar Level Transmitter antenna flooded

Solution: Change Guided Wave Radar Level Transmitter to waveguide measurement.

Install the Guided Wave Radar Level Transmitter at the original opening, and the waveguide is about 0.2m higher than the exhaust pipe. In this way, even if there is a bad working condition where the slurry overflows from the exhaust pipe, the level meter antenna will not be damaged The slurry is submerged. And it will not cause the disturbance of the stirrer vortex and a large amount of steam from the probe, which reduces the damage to the probe.

In addition, due to the better focusing effect of the waveguide, the received radar wave signal will be stronger. Therefore, better measurement results can be obtained.

The above content is for reference only. Of course, there are other reasons for the inaccurate measurement of the Guided Wave Radar Level Transmitter, which needs to be checked in combination with the actual situation.

Featured Guided Wave Radar Level Transmitters

SIRD-702 GWR Corrosive Liquid Chemical Level Sensor

SIRD-703 GWR Bulk Solids & Powder Solid Level Sensor

SIRD-704 Coaxial Probe Guided Wave Radar Level Transmitter

SIRD-705 GWR Level Sensor for High Temperature & High Pressure

More about Guided Wave Radar Level Transmitter technology and application:

What is the difference between radar and guided wave radar level transmitter?

Different ways of contact:
Radar level gauges are non-contact. Guided wave level gauge is contact type. That is to say, the guided wave type cannot be used in occasions with high food grade requirements.
Different working media:
The guided wave radar level gauge also needs to consider the corrosiveness and adhesion of the medium. Moreover, the installation and maintenance of guided wave radars that are too long are more difficult.
In the case of low permittivity, the measuring principle of radar or guided wave radar is based on the difference in permittivity. Since the waves emitted by ordinary radar are divergent, when the dielectric constant is too low, the signal is too weak to measure stably. Guided wave radar waves propagate along the probe, and the signal is relatively stable.
Different types of selection:
Ordinary radar can be used interchangeably. Guided wave radar cannot be used interchangeably because the probe (cable) has a fixed length according to the original working conditions. The selection of guided wave radar is more troublesome than ordinary radar.
Different ranging:
Ordinary radar is mostly used on 30 and 40m tanks, and can even measure to 150m. Guided wave radar also needs to consider the force of the probe (cable). It is precisely because of the force that the measurement distance of guided wave radar is generally not very long.
However, guided wave radar has obvious advantages in special working conditions such as stirring in the tank and large fluctuations in the medium. The measured value of the guided wave radar fixed at the bottom of this working condition is more stable than that of the flexible radar. And small tanks. For liquid level measurement, due to the small installation and measurement space (or a lot of interference in the tank), general radar is not applicable, and the advantages of guided wave radar are reflected at this time.

Stilling Wells for Radar Level Measurement|What Is It? Why Do You Need It?

Posted on February 3, 2023 by KimGuo11

Stilling Wells for Radar Level Measurement

Stilling Wells is our complementary tool in radar level measurement. Simply put, Stilling Wells is a metal pipe installed under the radar level meter. In many working conditions, the radar level meter is installed inside the storage tank. In order to concentrate microwave pulses and reduce scattering, one of the methods adopted is to install them in Stilling Wells. Especially for occasions where the liquid level fluctuates greatly or foam is generated.

RFQ Level Meters

When do we need to use Stilling Wells?

Usually, the radar level meter is installed in Stilling Wells because the interference signal caused by certain factors has a great influence on the real signal, resulting in measurement errors or even failure to measure. The radar level meter is installed in the Stilling Wells, which can avoid the influence of the interference signal on the real signal and ensure the accuracy of the measurement.

So, under what circumstances will the radar level meter be installed in Stilling Wells?

Situation 1: There are obstacles in the storage tank or large foam and fluctuations on the liquid level. In this case, interfering signals can significantly affect the measurement.

Situation 2: The dielectric constant of the medium is low, and the reflected echo is too small to accurately measure the liquid level. Using the radar level meter installed in Stilling Wells can increase the reflected echo energy and ensure accurate measurement.

Using Stilling Wells installation (Stilling Wells or bypass pipe), you can avoid the impact of obstacles, foam, liquid surface fluctuations in the container on the measurement.

Stilling Wells can only measure medium with good fluidity. Viscous medium cannot be measured with Stilling Wells.

Advantages of Stilling Wells for Radar Level Measurement:

The advantage of Stilling Wells measurement is that the liquid level in the pipe is stable and not disturbed by external fluctuations.
Avoid interference from obstacles inside the container.
Reduce the influence of foam and air turbulence on the measurement.
Increase signal reflection strength.
For the case where the measured object has boiling or turbulent liquid level, or the dielectric constant of the measured medium is small, measures such as Stilling Wells should be used to ensure the measurement accuracy.

The accuracy of the radar level meter differs under actual application and reference conditions. The main reason is that the tank itself has become part of the measurement system. The ability to achieve accuracy is determined by the interference of the microwaves by the tank and its internal obstructions.

After the pressure spherical tank is built, the draft tube becomes a part of the tank body. Its manufacturing process level directly affects the measurement accuracy of the radar level meter.

The electromagnetic wave emitted by the radar level meter propagates along a straight line. When interference is encountered in Stilling Wells, a reflected echo will be generated, and the echo amplitude is small. On the contrary, if the smoothness of the inner wall of the pipe is not ideal, it will show a reflection echo with a large amplitude.

Featured Radar Level Meters

Radar level meter installation standards

The installation position of the radar level meter affects the measurement accuracy. Pay full attention to several issues:

Radar level meter The distance between the tank hole and the tank wall is greater than 15% of the height between the flange sealing surface and the tank bottom plate, so it is limited to using guided waves to close the pipeline.
In order to ensure that the sound signal enters the middle of the storage tank unhindered, the total length of the flange and pipe joint of the radar level meter socket is less than 250mm.
If there is a waveguide; the waveguide should be horizontally downward, the allowable error ≤ 0.5; the verticality should be 1.
Installation and connection should take into account the strength of the tank roof so as not to cause variable displacement.
The radar wave path should avoid internal obstacles, such as brackets, heating wires, stirring rods, etc.
Consider liquid level conditions and avoid formation of air bubbles such as turbulence at the discharge end.

Radar level meter production requirements

When the storage tank is a floating roof tank or a spherical tank, a waveguide shall be used.
When the medium level fluctuates or foams, the waveguide should also be actively added.

The waveguide is not purchased together with the equipment supply, and should be manufactured on site by the supervisory unit according to the specific working conditions.

The specific conditions for manufacturing Stilling Wells are as follows:

Stilling Wells shall be constructed of stainless steel or carbon steel, and only stainless steel shall be used for spherical tanks.
Stilling Wells should be complete. If it needs to be lengthened, the jacket welding method must be used. The gap is less than 1.0mm. There should be no welds or sharp edges on the inner wall of the welding. Otherwise, its accuracy will be affected.
The bottom of the Stilling Wells is 100~150mm away from the bottom plate of the fuel tank. Then add a reflector radar inclined at 45°.
In order to ensure that the liquid levels outside the Stilling Wells are equal, the Stilling Wells must be separated at the intersection holes, and the plane of the Stilling Wells section must be smooth, otherwise false liquid levels are prone to occur. The hole spacing should be appropriate and not too large, so as not to cause fluctuations in the liquid level in the pipe;
It cannot be too small, and it is not very effective to ensure that the liquid level inside and outside the Stilling Wells is consistent.

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

Our experience:

Stilling Wells should be made of carbon steel or stainless steel. If it is used in spherical tanks, stainless steel must be used. This is the result of years of experience.

In addition, it is recommended that Stilling Wells be made into whole roots. If lengthening is required, the outer jacket welding method must be used. And the gap should be less than 1 mm. There must be no burrs and welds on the inner wall. Burrs and welds will interfere with the real echo signal and affect the measurement effect.

The last point, which is crucial, is directly related to whether the liquid level is true. Therefore, more attention is required. When making Stilling Wells, it is necessary to use the interval distance to cross the holes. The opening should not be too large, nor too small. If it is too large, the liquid level in the tank will fluctuate easily. If it is too small, the internal and external liquid levels of Stilling Wells cannot be guaranteed to be consistent.

Based on years of experience, some engineers have made a correspondence between the diameter and opening size of Stilling Wells. When the diameter of Stilling Wells is DN125, DN200, DN250 and DN300, the opening sizes of Stilling Wells are 0.1m, 0.4m, 0.8m and 1.2m in sequence.

The above three points are all the experience summarized by Sino-Inst. In addition, some materials have also mentioned that a certain distance should be kept between the bottom of the Stilling Wells and the bottom of the storage tank, and reflectors should be installed. If you have installation needs, you can find more relevant information or ask more relevant engineers.

In order to ensure the accuracy of radar level meter measurement, in addition to installing Stilling Wells, some can also install bypass pipes. You can choose the appropriate method according to your own working conditions.

5 Factors Affecting Pressure Drop

Flow rate

Pipe diameter

Pipe length

Fluid properties (density, viscosity)

Fittings and valves

Calculation of Pressure Drop

Pressure Drop Equations

Online Pressure Drop Calculators and Software

Flow Meter Pressure Drop

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the new choice: Capacitive level sensors

Working principle of high temperature and high pressure capacitive level sensors

technical parameters

Applications

High Temperature-High Pressure Capacitive Level Sensors will be the right choice for you

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Conclusion

Step 1. Get to know your tank

Step 2. Diesel Fuel Level Sensor Types

Capacitance fuel level sensors

Float fuel level sensors

Ultrasonic fuel level sensors

Radar fuel Level Sensors

Pressure Guided Submersible Level Transmitter

Magnetostrictive Level Transmitters

Step 3. Measurement Needs

Low Cost

High Accuracy

high temperature and high pressure

contact measurement

non-contact measurement

Output switching value

The tank cannot be opened

Large range

oil-water interfac

Tank volume monitoring

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What is a submersible level transducer?

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Learn More About Submersible Level Transducer

Submersible Level Transducer Working Principle

What is a water level transducer?

Why is the Submersible Level Transducer the first choice for water level measurement?

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Frequently Asked Questions

How does a submersible water level sensor work?

Which sensor is best for water level?

How does a hydrostatic water level sensor work?

What kind of sensor can be used to measure water level in a tank?

1. Operating Frequency

2. Material Properties

3. Environment

4. Storage Containers

5. Safety Considerations

Selection of Radar Level Sensors under special working conditions

common container

sealed small tank

corrosive liquid

Contains foam

with steam

For high temperature and high dust conditions

Featured Radar Level Meters

Frequently Asked Questions

What is a level sensor for solid material?

What device can measure the level of solids?

How do you measure solid levels?

What type of sensor is used when controlling the level of solids in a bin?

Conclusion

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