What Is Psi in Pressure Sensor?

You may have seen the word “Psi” in various equipment specifications, or you may need to use this unit for measurement and adjustment during work. But do you really understand what Psi stands for?

PSI is the abbreviation of pounds per square inch. It is one of the pressure units used to indicate the pressure of liquid or gas. Widely used in automobiles, bicycles, gas tanks and air compressors, etc. On pressure sensors and pressure transmitters, commonly used pressure units include bar (Bar) and kilopascal (KPa). But in the United States and the United Kingdom, PSI is the most commonly used unit of pressure. 1 PSI is equal to 0.0689476 bar or 6.89476 kPa.

Psi in Pressure Sensor

Pressure sensors are available in a variety of reading units. Psi (pounds per square inch), as one of them, is widely used in industrial systems in many countries.

Why is it preferred over other units in some situations? Let’s learn together What Is Psi in Pressure Sensor. I believe this article can help you better understand this key indicator of pressure sensors. let’s start!

0-50/100/21755/101526 PSI High Accuracy Pressure Transducers

What Is Psi in Pressure Sensor?

Before we delve into the world of pressure sensors, we first need to understand the unit of measurement for pressure – Psi. Psi stands for “pounds per square inch” and is a unit of pressure. It is widely used in many aspects of industry, engineering and daily life.

The definition and origin of Psi

Psi is a unit of pressure measurement that belongs to the Imperial system of units. It measures how many pounds of force are exerted on a square inch of area.

From a historical perspective, imperial units have been widely used in industry since the early industrial revolution originated in England. Although many countries in the world today use the metric system, which is Newtons per square meter (Pascals). But in countries such as the United States, Psi is still one of the most commonly used units of pressure.

More Common Units Of Pressure.

Conversion relationship between Psi and other pressure units

1 Psi is equal to 6894.76 Pascals (Pa).
Likewise, 1 Pascal is equal to 0.000145038 Psi.

In addition to Pascal, Bar is also common, and 1 Bar is equal to 14.5038 Psi.
These conversion relationships are crucial to engineers. Because they need to be able to switch between different measurement systems to ensure accuracy and versatility.
There are many convenient pressure unit conversion tools available:

Absolute pressure-Gauge pressure ConverterPressure Unit ConverterLiquid Depth/Level to Hydrostatic Pressure Calculator
Differential Pressure CalculatorPressure Transducer 4-20ma Output CalculatorPressure to Liquid Level Calculator

More About Psi and Pressure Sensors

Understanding Psi is fundamental to using pressure sensors. For example, when inflating car tires, we often see the recommended Psi value, which tells us the standard air pressure that should be tolerated per square inch inside the tire. Similarly, various hydraulic systems, air compressors, etc. will use Psi as the measurement and reference unit for pressure.

In industrial applications, Psi allows engineers and technicians to accurately monitor and regulate the pressure in the system. This is crucial to ensuring the normal operation of equipment, preventing accidents, and maintaining production quality.

We at Sino-Inst supply various pressure transmitters with PSI display units. And the display unit can be adjusted to various common pressure units such as MPa, Bar, KPa, etc. If you happen to need it, please feel free to contact our sales engineers!

Request a Quote

Please enable JavaScript in your browser to submit the form

What Is a Hydraulic Pressure Transducer? and Product List

What is a hydraulic pressure transducer?

A hydraulic pressure sensor is a sensor used to measure pressure in a hydraulic system. It can monitor and control the pressure of the hydraulic system by converting the pressure into electrical signals. to ensure the pressure within the system is at the correct level, or to allow the controller to increase or decrease pressure.

Hydraulic Pressure Transducers are used in a variety of hydraulic systems such as power steering systems, shock absorbers, braking systems, utility vehicles such as excavators and aerial work platforms, lifts and industrial machinery such as hydraulic presses.

As a manufacturer of pressure transmitters, we at Sino-Inst supply a variety of Hydraulic Pressure Transducers. Including customized high pressure, high temperature, and other product parameters. The product list below is for your reference.

Hydraulic Pressure Transducers

hydraulic pressure transducer Applications

Hydraulic pressure transducer is a device that converts hydraulic signals into electrical signals and is widely used in a variety of hydraulic systems and industrial processes. The following are several main applications of hydraulic pressure sensors: booster cylinders, superchargers, gas-liquid booster cylinders, gas-liquid boosters, presses, compressors, air conditioning and refrigeration equipment and other fields.

  1. Hydraulic system monitoring and control: Hydraulic pressure sensors can be used to monitor the working pressure in the hydraulic system to ensure its normal operation. When the pressure reaches or exceeds the set upper or lower limit, the alarm or control system can respond. Such as adjusting the output of the pump, opening or closing valves, etc.
  2. Aerospace applications: In the hydraulic systems of aircraft and spacecraft, pressure sensors are used to ensure the normal operation of the system. Monitor the pressure status of the aircraft landing gear, brakes and flight control systems.
  3. Automobile industry: In the hydraulic brake system, power steering system and suspension system of automobiles, pressure sensors may be used to ensure the normal operation and safety of the system.
  4. Industrial automation and manufacturing: In production lines, injection molding machines, pressure forming machines and other equipment, hydraulic pressure sensors are used to monitor and control the process to ensure product quality.
  5. Medical Equipment: In some medical equipment, such as cardiac assist equipment, hydraulic pressure sensors are used to monitor and control the flow and pressure of hydraulic fluid.
  6. Energy and power industry: In power stations and renewable energy equipment, hydraulic pressure sensors can be used to monitor the pressure of liquid media (such as hydraulic oil) to ensure normal operation of the equipment.

Hydraulic Pressure Transducers Installation

The installation location of the hydraulic pressure sensor should be determined based on the actual conditions of the hydraulic system. Generally speaking, the sensor should be installed at the most important position in the hydraulic system to monitor the highest pressure of the hydraulic system.

Common installation locations include the following:

  1. Pump outlet: Installed at the pump outlet, the output pressure of the pump can be monitored to ensure the normal operation of the pump.
  2. The inlet of the oil cylinder: Installed at the inlet of the oil cylinder, the pressure of the oil cylinder can be monitored to ensure the normal operation of the oil cylinder.
  3. The outlet of the oil cylinder: Installed at the outlet of the oil cylinder, the output pressure of the oil cylinder can be monitored to ensure the normal operation of the oil cylinder.
  4. High-pressure side of the oil line: Installed on the high-pressure side of the oil line, the highest pressure of the entire hydraulic system can be monitored to ensure the normal operation of the hydraulic system.

More about Pressure Transmitter Installation Guide.


The function of the pressure sensor is to convert the pressure signal into an electrical signal. It usually consists of sensitive components and conversion components. When subjected to pressure, the sensitive element will produce physical or chemical changes, and then this change will be converted into an electrical signal output through the conversion element.

The 4-20mA pressure transducer is a pressure sensor that outputs a 4-20mA current signal. The 4-20mA signal is a standard signal in industrial automation. It has good anti-interference and can be transmitted over long distances. In this type of sensor, 4mA usually represents the lowest pressure value, while 20mA represents the maximum pressure value.

The three common pressure transmitters are:

  • Strain gauge pressure sensor: This sensor detects pressure by measuring the resistance change of a strain gauge. When pressure is applied to a strain gauge, its shape and size change, causing its resistance value to change.
  • Capacitive Pressure Sensor: In a capacitive sensor, the pressure changes the distance between two conductive plates or the dielectric constant of the medium, thereby changing the capacitance value.
  • Piezoelectric pressure sensors: When certain materials, such as quartz, are subjected to pressure, they generate an electrical charge. Piezoelectric sensors take advantage of this property to measure pressure.

More Pressure Measurement Solutions

The Hydraulic Pressure Transducer is a transducer used to measure pressure in hydraulic systems. It can monitor and control the pressure of the hydraulic system by converting the pressure into electrical signals. It is essential for the safe operation of hydraulic systems. By understanding its working principle and correct use method, you can better utilize its characteristics and improve production efficiency and work safety.

Sino-Inst is a professional Hydraulic Pressure Transducer manufacturer. Our Hydraulic Pressure Transducers are widely used in various industrial hydraulic systems. If you need to purchase Hydraulic Pressure Transducers or have related technical questions, please feel free to contact our sales engineers!

Request a Quote

Please enable JavaScript in your browser to submit the form

Pressure Transmitter Installation Guide

How to install the pressure transmitter? This question may be something you need to consider before starting to purchase a pressure transmitter. A clear understanding of the installation requirements and installation methods of pressure transmitters will help in the design and construction of our process systems. And it can better ensure the measurement accuracy of our pressure transmitter.

We, Sino-Inst, are a manufacturer of pressure transmitters. We have provided pressure transmitters and pressure transmitter installation suggestions for process measurement and control in various industries for many years. The installation guide below is a summary of our many years of experience. Hope this can provide you with some help.

Preparation before installation

  1. The situation of measuring medium: Is the medium that needs to be measured gas, steam or liquid? High temperature or extremely low temperature? Whether there is corrosion, etc.
  2. Check the equipment: Because the equipment and design suppliers and models are different. Therefore, it is necessary to determine the transmitter corresponding to each tag number based on the measuring range, design and installation method, and the material required by the process medium.
  3. Determine the installation location: Is it installed on the tank? On the pipeline? Or on the pressure tube?

Various series of pressure transmitters adopt waterproof and dustproof structures and can be installed in any place.

However, it should be considered from the aspects of facilitating daily operation and maintenance, extending service life, and ensuring reliability. The installation location has the following requirements:

  • There is sufficient working space around, and the distance from adjacent objects (in any direction) is greater than 0.5m;
  • There is no serious corrosive gas around;
  • Not subject to surrounding thermal radiation and direct sunlight;
  • To prevent interference with the output due to vibration of the transmitter and pressure-guiding tube (capillary tube), the transmitter should be installed in a vibration-free place.

Selection of Pressure Transmitter Installation location

The installation location is also our pressure measuring point.

  • The selected pressure measuring point can reflect the actual situation of the measured pressure.
  • It should be selected in the pipe section where the measured medium flows in a straight line, and not in the pipeline bends, bifurcations, dead corners or other places where vortices are easy to form.
  • When measuring the pressure of a flowing medium, the pressure point should be perpendicular to the flow direction.
  • When measuring gas, the pressure point should be above the pipe so that there is no liquid in the pressure pipe.
  • When measuring liquid pressure, the pressure point should be at the lower part of the pipe so that there is no gas in the pressure pipe.
  • When the transmitter is installed lower than the pressure pipe, the liquid column pressure between the pressure gauge and the pressure pipe should be subtracted.
  • When measuring steam pressure, a condensate pipe should be installed to prevent high-temperature steam from directly contacting the pressure measuring element.

Precautions for installing pressure transmitter

  • The pressure transmitter should be installed in a place where it is easy to observe and inspect.
  • The installation location should be protected from vibration and high temperature.
  • Avoid installation in corrosive environments.
  • When the measured medium is prone to condensation or freezing, insulation and heating pipelines must be added.
  • A stop valve should be installed between the pressure tapping port and the transmitter, and should be close to the pressure tapping port.
  • Sealing gaskets and polytetrafluoro tape should be installed at the connection of the pressure transmitter. Generally, asbestos paper or aluminum sheets are used when the temperature is lower than 80℃ and 2Mpa. When the temperature and pressure (50MPa) are higher, annealed copper pads or lead pads are used.

How to install the pressure transmitter

There are many ways to install a pressure transmitter, and the following three are currently commonly used.

⑴Pressure transmitter installation on pipe, this installation method is simple and uses less material.

If it is a high-temperature pipe, you can add 1 or 2 circles of conduit to reduce the temperature.
An isolation valve can also be added to facilitate the later disassembly and replacement of the pressure transmitter.

⑵Flange installation, mainly used for liquid level measurement, using the static pressure of the liquid to measure the liquid level.

⑶ Bracket installation (pipe-mounted flat bracket). Most of them adopt this installation method, which is convenient for installation and maintenance. If it is in an open-air location, an instrument box can be used to protect the pressure transmitter from dust and rain. Of course, our pressure transmitter is well protected, with a protection level of IP65. The working environment temperature is -40~+75℃. Resistant to vibration, dust and rain. Maintenance-free for 5 years.

In addition to the above three, there is also an installation method using a pressure tube, which is also very common.

About pressure transmitter tapping point with impulse tubing

A pressure tap generally refers to taking a small portion of fluid (which may be a gas or liquid) from a process and introducing it to a pressure transmitter to measure the pressure of that fluid. This is a way of directing fluid from a real work process to a measuring device so that it can be monitored or analyzed.

In actual operation, in order to ensure the accuracy of measurement and avoid damage to the pressure transmitter due to fluid characteristics (such as high temperature, corrosiveness, etc.), a specific impulse tubing device or isolation mechanism may be used. These devices cool, filter or otherwise treat the fluid to ensure it is suitable for being measured and to ensure the safety and accuracy of the measuring equipment.

The impulse tube is also a commonly used accessory in the installation of differential pressure transmitters.

Pressure transformer installation with impulse tubing

The pressure transmitter is not installed directly on the pipe, but is connected to the connection joint of the pressure transmitter through an impulse tube with a diameter of 14 mm. The pressure transmitter body is installed next to the device.

When welding this pipe with the impulse tube device (actually a 50-75mm metal pipe) installed on the pipe, the welding angle ends up being about 45°. This will not easily cause dust accumulation. In addition, there is a pipe thread on the head of the metal pipe, which can be tightened with a plug to prevent air leakage. It is easy to open when inspecting the air pipe and check whether there is dust accumulation in the air pipe. The instrument air intake pipe is welded to the upper part of the air intake pipe, which will not easily cause dust accumulation.

The impulse tube of the pressure transmitter should be equipped with 4 instrument valves. If the measured pressure is an air pipe with low pressure, the instrument valve on the upper part of the air pipe can be omitted. This valve is generally called a primary valve, but this valve cannot be omitted when measuring high-pressure gas and water. When the pressure transmitter is working, open the valve at the upper part of the gas intake pipe and the valve at the upper part of the tee, which is generally called the secondary door. Close the lowermost valve, generally called the exhaust valve. Slowly open the valve connected to the pressure transmitter to allow the pressure transmitter to pressurize.

Pressure transmitter wiring

At present, pressure transmitters are more commonly used in DCS control systems. The pressure transmitters installed on site are equipped with 4-20mA output and digital communication functions. Connect to the input of the on-site power room via shielded cable.

For wiring instructions of the pressure transmitter, please refer to: Pressure Transducer Wiring Diagram Guide: 2 Wire-3 Wire-4 Wire

More Pressure Measurement Solutions

No matter what type of pressure transmitter you plan to purchase or have purchased, you need to consider the Pressure Transmitter Installation. Compact pressure sensor, explosion-proof pressure transmitter, flange-mounted pressure transmitter, or capacitive pressure transmitter, etc.

We at Sino-Inst are professional pressure transmitter manufacturers. If you plan to install a pressure transmitter or are ready to purchase a pressure transmitter and have any questions about the Pressure Transmitter Installation, please feel free to contact our sales engineers!

Request a Quote

Please enable JavaScript in your browser to submit the form

What Is Pressure Transducer Output Signal? and Types

There are four commonly used Pressure Transducer Output Signals: 4-20mA current signal, 0-5V or 0-10V voltage signal, digital signals such as HART and MODBUS, and frequency/pulse signals. When the pressure transmitter is working and connected to the power supply and pressure source, the pressure sensor will produce an output signal proportional to the pressure.

Featured Pressure Transducers

If you are new to the industry, you may need to know the basics about pressure sensors and pressure transmitters:

OK Next, let’s take a detailed look at these four Pressure Transducer Output Signals.

Pressure Transducer Output Signal types

1. Current signal output (for example 4-20mA):

Definition: This signal output method uses a certain range of current to represent the change of the measured physical quantity. For example, 4-20mA means that the minimum and maximum measurements correspond to an output of 4mA and 20mA respectively.

Able to transmit over long distances without being affected by voltage loss.
Has its own fault detection capabilities (for example, output below 4mA can be used for fault detection).
Excellent performance in electromagnetic interference environments.

Best applications: Suitable for long-distance transmission or situations with a lot of electromagnetic interference in industrial environments.

Maximum distance: up to 1000 meters or more.

2. Voltage signal output (such as 0-5V or 0-10V):

Definition: This signal output method represents the size of the measured physical quantity through changing voltage values.

Connections between voltage output devices and devices are relatively simple.
Often easier to understand and measure.

Disadvantages: Long distance transmission may be affected by voltage drops caused by resistors.

Best Applications: In short-distance connections, such as in a laboratory environment or close industrial equipment.

Maximum distance: usually within 15 meters, as long distances may be affected by voltage drops caused by resistors.

3. Digital signal output (such as HART and MODBUS):

Definition: These are digital communication protocols that allow two-way communication between a device and a host computer or other device.

A variety of information other than measured values can be transmitted, such as device status, diagnostic information, etc.
Data transmission is stable and highly reliable.
Ability to remotely configure and diagnose.

Best applications: Suitable for occasions where remote monitoring, diagnosis or configuration is required, or where there are multiple devices in the system that require data exchange.

Maximum distance: HART can reach about 1000 meters; MODBUS can reach about 1200 meters on the RS-485 interface.

4. Frequency/pulse signal output:

Definition: The frequency or number of pulses output is proportional to the measured physical quantity.

Interfaces directly with devices requiring frequency input or pulse counting.
For some systems or devices, it may be easier to integrate.

Disadvantages: Additional transformation or processing may be required in complex systems.

Best Applications: Direct connection to equipment requiring frequency input or pulse counting, such as flow meters or direct connection to certain types of PLCs.

Maximum distance: Since it is usually a digital signal, it can be up to several hundred meters. But the exact distance depends on the signal type and transmission medium.


A pressure transmitter is a device that converts a received pressure signal into an electrical signal output. That is to say, the output of the pressure transmitter is a signal representing the measured pressure value. This signal can be a voltage, current, frequency, digital or other type of output.

The output signal of the transducer is a signal that represents the physical quantity it measures (such as pressure, temperature, flow, etc.). The signal can be analog (such as voltage or current) or digital (such as HART, MODBUS).
Here are not just pressure transmitters, but also flow transmitters (that is, flow meters), level transmitters, temperature transmitters, density meters, etc.

The response of a pressure transmitter describes the change in the transmitter output signal when the input pressure changes.

An ideal pressure transmitter will produce an immediate, accurate and linear response to input pressure changes.

Pressure sensors measure pressure by converting the pressure of an object into an electrical signal output. Our naked eyes cannot distinguish the magnitude of physical pressure. So, we need Pressure Transducer Output Signal. Pressure Transducer Output Signal converts invisible signals into signals that we can identify, count, and control. This is more conducive to our industrial process measurement and control.

Sino-Inst is a professional pressure transmitter manufacturer. We produce various pressure transmitters, including more than 50 types of high-frequency dynamic pressure transmitters, ultra-high temperature pressure transmitters, extremely low temperature pressure transmitters, explosion-proof pressure transmitters, etc. Our pressure transmitters can be configured with a variety of common Pressure Transducer Output Signals. They can be configured according to the signals you require.

If you have any questions about the configuration of Pressure Transducer Output Signal, please feel free to contact our sales engineers!

Request a Quote

Please enable JavaScript in your browser to submit the form

Enhancing Marine Tank Monitoring with Advanced Marine Water Tank Level Sensors

Marine Water Tank Level Sensors have always been an important part of the marine tank monitoring system. There are many places on ships where water levels need to be detected. Such as fuel, fresh water and sewage storage tanks. The liquids in these tanks are a critical resource for ship operations and require constant monitoring to ensure supply and appropriate storage. For example, the water level in the water storage tanks and pipelines of the fire protection system also needs to be monitored to ensure that there is sufficient water supply in an emergency. Even equipment that handles seawater, sewage or other waste liquids needs to monitor water levels to ensure proper operation of the equipment.

What are Marine Water Tank Level Sensors?

Marine Water Tank Level Sensors are specially designed to measure the water level inside ships. For example, in fresh and drinking water as well as gray water or waste water storage tanks on ships, Marine Water Tank Level Sensors can detect liquid levels from very low to very high.

Marine Water Tank Level Sensors generally use capacitive, hydrostatic, or radar measurement technologies. Convert the water level into an analog signal and then transmit it to the marine tank monitoring system. To effectively monitor, record and control the liquid level in the tank. And the sensors are often used in conjunction with alarm systems to alert users when the level in the tank reaches a certain level.

marine tank monitoring system

Marine Tank Monitoring System is a system used on ships to monitor the liquid levels of various storage tanks (such as oil, fresh water, sewage, etc.) in real time. It is an important part of ensuring the safe and efficient operation of ships.

In addition to monitoring water levels, other liquid levels also need to be monitored on ships. The installation of liquid level measurement and alarm systems on oil tankers and chemical ships is to monitor cargo tanks and other oil and water tanks. On the one hand, by measuring the liquid level, the crew can keep track of the various conditions of the ship during navigation to ensure the best loading of the ship. More importantly, it is to prevent the liquid level from being too high and causing overflow. To avoid causing fires and contaminating the surrounding marine environment.

The following are some basic features and components of the system:

  • Function:
    • Monitor the liquid level in the storage tank in real time.
    • Record and analyze liquid level data.
    • Sounds an alarm when the liquid level exceeds the preset range.
    • Sometimes other parameters such as temperature and pressure of the storage tank can also be monitored.
  • Sensor:
    • The liquid level sensor is the core component and can be float type, capacitive type, radar type, pressure type, etc.
    • As needed, it may also include temperature sensors, pressure sensors, etc.
  • Display and control terminal:
    • Usually located in the control room or bridge of the ship, it is used to display the liquid level information of each storage tank in real time.
    • Allows operators to set alarm thresholds, view historical data, and more.
  • Correspondence:
    • Communication is required between the sensors and control terminals within the system, which may be wired (such as RS485, Ethernet) or wireless.
    • In more advanced systems, remote monitoring capabilities may also be provided, allowing a land-based management center or other vessel to obtain data in real time.
  • Data processing and storage:
    • Systems will typically include a data processing unit to receive, process and store data collected from sensors.
    • Facilitate subsequent analysis, statistics and reporting.
  • Power and backup:
    • Considering the particularity of ship power supply, the system usually has its own power module with battery backup to ensure that it can still work normally in the event of a short-term power interruption.
  • Alarm function:
    • When the liquid level exceeds the preset safety range, the system will automatically send out an audible and visual alarm to remind the operator to handle it in time.

Marine Water Tank Level Sensors is important for better tank monitor

Through the above introduction, you should have understood that Marine Water Tank Level Sensors are important for better tank monitor.

Equipment for monitoring the level of liquids in ship water tanks (such as fresh water, sewage, drinking water, etc.). These sensors play a vital role in the operation and management of ships.

For example, the simplest thing is to ensure the safety of ships.

Sudden changes in tank level can be a sign of a leak or other malfunction on your vessel. Through real-time monitoring, potential problems can be discovered and dealt with in time to prevent accidents.

OK So if we want to configure Water Tank Level Sensors for our or our customers’ ships, which one should we choose? What types of Marine Water Tank Level Sensors are there?

Types of Marine Tank Level Sensors

Based on our many years of experience in liquid level measurement services at Sino-Inst, the level sensors commonly used for ship liquid level monitoring are as follows:

When the liquid level rises or falls, the float also rises or falls. Through the movement of the float on the vertical guide rod, the liquid level information can be output into an electrical signal.

  • Advantages: simple structure, low cost and high reliability.
  • Disadvantages: It may be interfered by sediments or viscous liquids, and is not suitable for use in high-temperature or high-pressure liquids.

The sensor is submerged in the liquid and measures the liquid level based on the water pressure generated by the liquid column. The higher the liquid height, the greater the water pressure.

  • Advantages: High accuracy, not affected by liquid properties (such as color, transparency), suitable for deep water storage tanks.
  • Disadvantages: Requires regular calibration and maintenance, may be affected by high temperatures and corrosive liquids.

The sensor acts as a part of a capacitor, and changes in the liquid level will cause changes in the capacitance value, thereby measuring the liquid level.

  • Advantages: Fast response and can be used with many types of liquids, including corrosive and viscous liquids.
  • Disadvantages: May be affected by sediment or other impurities and require periodic cleaning and calibration.

The sensor emits microwave or millimeter wave signals that are reflected back by the liquid surface. The liquid level height is calculated based on the time difference between the transmitted and received signals.

  • Advantages: High accuracy, not affected by liquid properties or sediments. Contactless design reduces maintenance requirements.
  • Disadvantages: Relatively high cost, installation and calibration may be complicated.

How to Choose Level Sensors for Marine Tanks?

Choosing a suitable marine liquid level meter requires comprehensive consideration based on practical applications and various factors to ensure that it can not only meet the measurement needs, but also have high cost performance and reliability.

Here are a few points to consider based on our experience:

  • Liquid properties:
    • Corrosiveness: For highly corrosive liquids, corrosion-resistant materials and sensor types need to be selected.
    • Viscosity: Some sensors may be interfered by highly viscous liquids or sediments.
    • Temperature and Pressure: The operating temperature and pressure of the liquid may place specific requirements on sensor materials and design.
  • Measuring range: The measuring range of the liquid level gauge needs to be clarified to ensure that it is suitable for the depth of the tank or the variation range of the liquid level.
  • Tank shape and installation location: The shape of the tank and installation space may limit the type of level sensor. For example, the tank may only have an external level sensor option.
  • Accuracy requirements: Determine the required measurement accuracy based on the requirements of the actual application.
  • Installation and maintenance:
    • Ease of installation: Some level gauges may require special tools or expertise to install.
    • Maintenance needs: Consider whether the sensor is easy to clean, calibrate, or replace.
  • Output and communication: Select the appropriate output interface (such as 4-20mA, RS485, Modbus, etc.) according to the ship’s monitoring system or other equipment.
  • Power requirements: Consider whether the ship’s power supply and the level gauge’s power requirements match.
  • Cost: In addition to the cost of the equipment itself, the total cost of installation, maintenance, and replacement should also be considered.
  • Environmental factors: Consider the environment the ship is in, such as whether there is a lot of salt spray, moisture, vibration, etc., and choose a liquid level gauge that can work stably under these conditions.
  • Additional functions: such as whether remote monitoring function is required, whether there is a built-in temperature or pressure sensor, whether there is an alarm function, etc.
  • Suppliers and brands: Choose suppliers or brands with good reputation and good after-sales service.


You can use a specially designed liquid level sensor to monitor the liquid level of your water tank in real time.

These sensors are usually installed at the bottom or top of the water tank and connected to a display or monitoring system so that you can visually view the water level.

Read more about:

Water Tank Level Sensors for Level Control

Water Level Monitoring Sensor/System for Sewage-Wastewater

The Secret of Water Level Control

Tank level sensors determine the height of a liquid by measuring the pressure the liquid exerts on it, changes in capacitance, or by sending and receiving reflected signals such as radar or ultrasonic waves.

When the height of the liquid changes, the signal generated by the sensor changes, and these changes are converted into electrical signals and displayed as the liquid level.

More about: 7 Type Tank Level Senors For Liquid and Solid

There are many sensors used to maintain the water tank level, including float level sensors, submersible hydraulic level sensors, capacitive level sensors and radar level sensors. Which sensor you choose depends on your specific needs and the characteristics of your tank.

A liquid level sensor for water tanks is a device used to detect and measure the water level in a water storage container or tank in real time. It can be several types of sensors that work on different principles, such as those mentioned above.

A tank level monitoring system is an integrated system for real-time monitoring and recording of liquid levels in a storage tank or water tank. The system typically includes one or more level sensors, a central processing unit, display and possibly alarm equipment. When the liquid level exceeds the preset range, the system can automatically trigger an alarm or take other measures.

How to install the Marine Water Tank Sensor?

Installing a marine water tank sensor is a relatively specialized process that requires accuracy and safety. Here’s a basic guide we’ve put together with the installation steps:

  • Choose a suitable location: Choose a location close to the center of the water tank for easy later maintenance.
  • Cleaning and pre-treatment: Remove impurities and ensure the tank level is below the predetermined level if drilling is required.
  • Drilling and fixing: Drill holes and fix the sensor according to the sensor specifications to ensure a seal.
  • Connect the wires to the output: Connect the sensor output wire to the display and make sure the connection is waterproof.
  • Debugging and calibration: Turn on the power and calibrate the sensor according to the guide.
  • Safety and Protection: Provides protection for sensors and ensures wires are securely fastened.
  • Regular inspection and maintenance: Check sensor operation and clean or calibrate as needed.

Installing marine water tank sensors requires meticulous work and specialized knowledge. If you’re not sure how to proceed, it’s best to ask a professional or follow the manufacturer’s installation guide.

More Level Measurement Solutions

We, Sino-inst, are professional tank level gauge manufacturers and suppliers. We have been supplying various types of level sensors for a long time. Including: ultrasonic level meter, radar level meter, hydrostatic level meter, capacitive level sensor, differential pressure level transmitter, etc.

The Marine Water Tank Level Sensors we supply are widely exported to various countries, including the United States, the United Kingdom, Turkey, South Africa, Nigeria, Singapore, and many other countries.

If you have any technical questions about the purchase and installation of Marine Water Tank Level Sensors, please feel free to contact our sales engineers. We will provide you with customized solutions.

Request a Quote

Please enable JavaScript in your browser to submit the form

Shopping the Right High Temperature Level Sensor: 80℃~1000℃

High temperature level sensors refer to Level instruments for high temperature applications. High temperature level sensors purchase special materials or structures, such as 316 stainless steel, PTFE materials, etc. Suitable for measurement of high-temperature storage tanks such as water, oil, diesel, or other chemical liquids. Then output 4-20mA/0-5V/1-5V/0-10V and other signals for liquid level monitoring. The temperature range: 80℃~150℃~250℃~350℃~450℃~800℃~1000℃. The measurement range can also meet 0~20m~30m~60, etc.

So which High temperature level sensor should you choose? This needs to be chosen based on your actual measurement parameters. Next, let’s analyze it together.

Featured High Temperature Level Sensors

Different types of high temperature level sensors

There are many types of level sensors. Different types of liquid level gauges can withstand different temperatures. In order to save you time in purchasing, we have compiled here the high temperature parameters that various level meters can withstand.

TypesMaximum Temperature ParameterApplicable Environment
Ultrasonic level sensorUltrasonic level meters made of conventional materials can measure media at 60°C. Made of polytetrafluoroethylene, it can reach 80℃.Suitable for liquids. Not ideal for highly turbulent surfaces.
Hydrostatic Pressure level sensorThe conventional configuration is up to 80℃, and the temperature can be customized up to 300℃.Ideal for liquids in closed tanks.
Differential Pressure  level transmitterThe capillary tube of the double flange (differential pressure) liquid level transmitter should have thermal insulation measures. In order to meet the temperature requirements of the measurement medium during the selection process, the capillary filling liquid is divided into low temperature (-40~149℃) filling liquid and high temperature (15~315℃) filling liquid.Suitable for various fluids; measures the difference in pressure. Open storage tanks, closed storage tanks, and pressurized storage tanks can all be measured.
Capacitive  level sensor-50-250℃; By adding heat dissipation components and changing the wetted material, you can customize high-temperature models of 200℃~800℃;For detecting liquids and granules. Not suitable for highly conductive media.
Magnetic Float  level sensor-20℃~120℃~200℃ Max.Used for liquid level detection in tanks.
Magnetostrictive  level transmitter-40°C-320°CHigh precision, suitable for various fluids.
Guided Wave  level sensor-200~400℃Works well in turbid, viscous, or foam-covered liquids.
Radar level meter80℃ – 450℃ (for general radar sensors)Suitable for both liquids and solids with varying surface conditions.
Custom High-Temperature Radar level meterSpecific to custom requirements. Can be customized to 600℃, 800℃, up to 1000℃.
However, depending on the measurement environment, it may be necessary to configure cooling assistance, such as water, liquid nitrogen, etc.
For extreme temperature environments or specific industrial applications.

Of course, this summary is mainly based on the high-temperature level sensors produced and supplied by our Sino-Inst. The level sensor types and temperature parameters provided by other manufacturers are not necessarily the same.

Liquid level measurement under high temperature conditions is nothing more than three solutions.
The first is the replacement of materials.
The second is to add cooling structural parts.
The third is to add cooling assistance, such as water, liquid nitrogen, etc.

If you need to measure high-temperature liquid level and don’t know which level sensor to choose, you can contact our sales engineers for consultation.

High temperature water level measurement

The temperature of water, the boiling point of water at standard atmospheric pressure is 100°C. However, at higher pressures, such as in a pressure cooker or industrial boiler, the boiling point of water increases. In fact, under very high pressure environments, water can exist in a liquid state up to 374°C, which is its critical temperature. So while water has a standard boiling point of 100°C at 1 atmosphere of pressure, it can exist at higher temperatures at elevated pressures.

Accurate measurement of water levels under high temperature conditions is critical across multiple industries and applications. For example, power plants, geothermal energy production, industrial processes, and HVAC systems in large commercial buildings all require water level measurement at high temperatures. In order to meet this demand, a variety of liquid level sensors suitable for high-temperature environments are available on the market, such as ultrasonic sensors, capacitive sensors, and hydrostatic pressure sensors. Different sensors vary in the temperature range they can handle.

High temperature Oil level measurement

High-temperature oils are widely used in many industrial fields. From automotive manufacturing and oil and gas extraction to food processing and chemical industries, accurate measurement of oil levels is required.

In the automotive and aircraft industries, for example, high-temperature oils are used to lubricate and cool engines, transmissions and turbines.

In the oil and gas industry, high temperature oil levels need to be measured and monitored during refining and processing.

In food processing, high-temperature oils are often used for cooking and processing of food.

Commonly used liquid level measurement techniques:

  • Radar (guided wave) sensor: Measures oil level by using electromagnetic waves. Suitable for high temperature and high pressure environments, for example, it can handle temperatures from 80°C to 450°C. Even higher temperatures can be customized.
  • Hydrostatic Pressure Sensor: Measures fluid level based on the pressure generated by the oil column, ideal for closed tanks and containers.
  • Capacitive Sensor: Measures oil level by detecting changes in capacity and can handle temperatures from 80°C to 250°C.
  • Magnetostrictive level transmitter: -40°C-320°C, measurement accuracy can be as high as 0.01% FS.

When selecting a sensor suitable for high temperature oil level measurement, it is important to consider the actual application requirements such as temperature, pressure and oil properties, as well as the accuracy and reliability of the sensor.

High temperature Tank level measurement

Large tanks for storing and handling high-temperature liquids are common in numerous industrial sectors. These liquids may be petroleum, chemicals or other industrial feedstocks that require storage at high temperatures during production. Therefore, it becomes critical to accurately and reliably measure the level of these tanks.

Why is high temperature storage tank level measurement so critical?

Safety factors: High-temperature liquids may be flammable and may also be harmful to humans. Therefore, it is crucial to ensure that liquids do not spill or leak.
Economic benefits: Accurate liquid level measurement can ensure the continuity of the production process, avoid resource waste, and improve efficiency.

Then the liquid level measurement of high-temperature storage tanks is also more complicated. When selecting a suitable level measurement technology, a number of factors must be considered. Including the properties of the liquid, tank design, temperature and pressure, etc. It is important to ensure that the chosen technology provides accurate, reliable data and ensures the safety of personnel during all operations.

In high-temperature storage tank liquid level measurement, more people will choose: high-temperature radar, high-temperature guided wave radar, capacitance, magnetostriction, or differential pressure level meter.

In fact, many times, whether our level sensors can meet the liquid level measurement under high temperature will also be related to the pressure. For example, for radar level meters, high temperature measurement and high pressure measurement cannot be satisfied at the same time. Therefore, when you pay attention to your measured temperature, you also need to pay attention to the measured pressure. We at Sino-Inst, as a professional measurement supplier, also have pressure transmitters that meet high temperature measurement for you to choose from.

Industrial applications of high temperature level sensors

High temperature liquid level sensors have a wide range of applications in industry. Here are some typical industrial application scenarios involving high-temperature fluids or materials:

  1. Condensation tower: In the petroleum and chemical industries, condensation towers are used to cool and condense high-temperature gases. Accurate measurement of liquid levels in these towers ensures process continuity and prevents overfilling.
  2. High-temperature molten salt: In solar heat collection and energy storage systems, high-temperature molten salt serves as the heat storage medium. Level sensors ensure that the molten salt is maintained at the proper level as it collects and releases heat.
  3. High temperature aluminum liquid: In the smelting plant, liquid aluminum flows and is stored at high temperature. The use of high-temperature liquid level sensors can accurately measure the liquid level of liquid metal to ensure the stability of the casting process.
  4. Molten glass: In glass manufacturing, raw materials are heated to extremely high temperatures until they melt. Accurate liquid level measurement is critical for glass molding and production.
  5. High-temperature boilers: In the field of energy and power generation, water in high-temperature boilers needs to be heated under high pressure. A level sensor ensures that the water level does not get too low, preventing the boiler from overheating.
  6. Chemical reactor: In some chemical processes, liquid reactants need to be heated at high temperatures. Accurately measuring the liquid levels in these reactors ensures the continuity and stability of chemical reactions.

More Level Measurement Solutions

For any industrial application involving high temperature fluids or materials, selecting the correct High Temperature Level Sensor is critical. Whether it is to ensure the safety of the production line or to improve work efficiency, accurate Level measurement is indispensable.

We at Sino-Inst are manufacturers of High Temperature Level Sensors. We have rich experience. Over the years, our High Temperature Level Sensors have been exported to various countries, including USA, Nigeria, Australia, South Africa, etc.

I hope that the introduction of this article can provide you with useful information and inspiration. Help you better understand the value and importance of High Temperature Level Sensor in industry. So you can choose the most suitable High Temperature Level Sensor.

Request a Quote

Please enable JavaScript in your browser to submit the form

Cooling Tower Level Sensors for Water Level Monitoring and Water Level Control

Cooling Tower Level Sensors refer to a type of level meter that can be used to measure the water level of cooling towers. Cooling Tower Level Sensors are an important part of the cooling tower’s cooling function. The cooling tower liquid level control system is mainly used to control the cooling water level in the cooling tower to maintain it within a reasonable range at all times. And it can realize real-time monitoring of liquid level and abnormal alarm function. To ensure that it will not cause high temperature failure or damage to the air compressor.

Cooling Tower Water Basins

A cooling tower is a heat exchange system that brings air and water into direct contact to lower the water temperature.

To achieve this, water is continuously pumped to the top of the tower. There it flows through a series of baffles, mixing with air. And collected in the pool directly below the tower or the sump next to the tower. As heat and water escape from the tower through evaporation, additional water must be added to the system periodically.

Cooling towers come in many sizes, from rooftop systems to building size and beyond. A typical birdbath is open to the air and has a depth of 4 feet or less. Made of fiberglass, metal or concrete. The capacity is large enough to hold all the water in the system.

Cooling towers have two basic control systems, one for adding liquid to the pool. The other is used to turn the water recirculation system on or off. The main requirements of this application are to monitor the fluid level, automatically fill the basin and prevent the system from drying out.

At present, cooling towers generally use packed towers. If the tower liquid level is too high, it may easily cause:

  1. The dehydration effect of the cooling tower is not good;
  2. System pressure fluctuation increases;
  3. The porcelain ring in the tower is easily broken;
  4. Increase the workload of each water outlet.

Cooling tower water level monitoring and control system

If there is a new cooling tower now. A water level monitoring and control system needs to be established. The following design points can be considered. This is all based on our Sino-Inst’s years of experience in providing liquid level measurement services.

  • Identify goals and needs:
    • Do you only need to monitor the liquid level, or do you also need to control the liquid level?
    • What are your liquid level accuracy needs?
    • Are there special temperature, pressure or fluid property requirements?
  • Choose the right Cooling Tower Level sensor:
    • Based on the previous discussion, you might choose ultrasonic, Hydrostatic, or capacitive sensors as they are suitable for a wide range of applications and provide continuous level measurement. We discuss these techniques in detail below.
  • Installation location:
    • Ensure the sensor is optimally positioned to accurately measure the entire liquid level range.
  • Output and communication:
    • Choose a sensor with a standard output (e.g. 4-20 mA) that can be easily integrated into existing control systems.
    • Consider using modern communication protocols such as Modbus or HART for remote access and debugging.
  • Level Control:
    • If level control is required, you may choose to use a solenoid valve or pump to increase or decrease the liquid.
    • Controllers can automatically turn these devices on or off based on set points, ensuring liquid levels remain within the desired range.
  • Security and Alarm:
    • Set high and low level alarms to prevent the system from overloading or drying out.
    • Consider using a redundant system to ensure backup level measurement in the event of a primary system failure.
  • System verification and calibration:
    • After the system is started, a full range of liquid level measurements are taken to ensure that all components are functioning properly.
    • Calibrate the sensor regularly to ensure measurement accuracy.
  • Maintenance and monitoring:
    • Check all equipment regularly to ensure there is no wear or damage.
    • Consider using a remote monitoring system to check fluid levels and system status from any location.

Hopefully this blueprint will provide a good starting point for your cooling tower level monitoring and control system. If you have any specific questions or need further guidance, please let me know!

cooling tower level sensors technology

Alright. Now you know the parameters of your cooling tower, including: pressure, temperature, liquid level range, installation location and installation dimensions, etc. Now you can start choosing the appropriate cooling tower level sensors.

Below are some recommended level measurement technologies that can be used for cooling tower water level measurement based on our experience at Sino-Inst.

Working principle: This sensor measures liquid level based on the pressure generated by the liquid column. The depth of a liquid is directly proportional to the pressure.

Good stability: not easily affected by environmental factors such as temperature, humidity, etc.
Easy installation: can be installed on the bottom or side of the container.
The price is more economical.

Application conditions:
Suitable for continuous liquid level measurement.
Best suited for environments that do not produce large amounts of foam or volatile liquids.

Working principle: Measure the distance of liquid by emitting ultrasonic pulses and receiving the signals reflected back.

Non-contact measurement: No direct contact with liquid is required, reducing wear and corrosion.
Strong adaptability: can measure a variety of liquid and solid materials.
Easy installation: generally installed on the top of the container.

Application conditions:

Not suitable for use in environments with large amounts of steam or foam as these may interfere with the signal.
The internal structure of the container should not be too complex to avoid affecting the reflection of ultrasonic waves.

Working principle: Use the capacitance change between the liquid and the sensor to measure the liquid level.

High sensitivity: Able to detect very small changes in liquid level.
Wide range of applications: It can measure liquids, solids or particles.
Long life: Since there are no moving parts, the durability is better.

Application conditions:
The dielectric constant of the liquid needs to be noted as it affects the measurement results.
May not be suitable for high viscosity or very sticky liquids.

Working principle: Microwave pulses are used to send and receive along the guide waveguide, and the reflection time between the microwave and the liquid surface is measured to obtain the liquid level information.

High Accuracy: Able to provide very accurate measurement results.
Adaptable: Can be used in extreme temperature and pressure conditions.
Suitable for a variety of media: Measures a variety of liquids, including those that are challenging, highly viscous, or have high vapor pressure.

Application conditions:
Due to cost considerations, they are often used in applications where accuracy is particularly high or where environmental conditions are harsh.
Use in liquids with large amounts of suspended solids should be avoided.

Of course, if you want to buy the Best cooling tower level sensor, you must choose it based on the actual cooling tower parameters.

If you don’t know how to choose, please provide the parameters to our Sino-Inst sales engineers. We will provide you with a selection quote.

Below are the commonly used cooling tower level sensors supplied by our Sino-Inst.

Featured Cooling tower level sensors


The high-level alarm in a cooling tower is a warning system that triggers when the water level inside the tower exceeds a designated safe range or set point. This is to prevent potential issues such as water spillage, equipment damage, and other potential hazards, ensuring the cooling tower operates safely and efficiently.

The airflow in a cooling tower can be measured in various ways, with the most common methods being the use of an anemometer or differential pressure measurement. An anemometer directly measures the speed of air flow, while differential pressure measurement infers the airflow rate by determining the pressure difference inside and outside the tower. The specific method chosen should consider the type and size of the cooling tower.

Read more about: Differential Pressure Flow Meter Calculation Formula and Calculation Examples

The tower range refers to the temperature difference between the hot water entering the cooling tower and the cooled water exiting it. For a typical cooling tower, the range is usually between 3°C to 8°C (5.4°F to 14.4°F), but this can vary depending on the design and application of the cooling tower.

A high-level sensor is a device that detects the height of the liquid inside a container or equipment. When the liquid level reaches or exceeds a predetermined threshold, it sends a signal or an alert. This type of sensor is common in many industrial applications, such as cooling towers, oil tanks, and other liquid storage equipment, helping to prevent overflows and associated safety hazards.

Implement cooling tower level control

After choosing the appropriate Cooling tower level sensors. We need to set up the cooling tower water level control.

The control of cooling tower water level is a key link to ensure the stable operation of cooling tower. The correct water level ensures cooling efficiency while also avoiding equipment downtime due to lack of water. The following is an introduction and guidance on how to achieve cooling tower water level control:

Connect and control equipment:

Cooling Tower Level sensors typically output a 4-20 mA current signal, which can be connected to a local controller or central control system. These control devices can be PLC, SCADA, DSC or independent level controllers. Any control device will do as long as the device can accept a 4-20 mA current signal.

Configuration operation scope:

The operating range of the controller needs to be programmed according to the measurement span of the Cooling Tower level sensor. Also, consider that the sensor’s 4 mA set point is typically above empty box conditions. Once the controller’s operating range and engineering units are configured correctly, they can be applied to relay set points for pumps, valves, or alarm automation.

Critical control points:

The main control task is to ensure that the cooling tower is filled in time before the water is reduced due to evaporation. This avoids process interruptions due to lack of water. Typically, this is accomplished via a valve. The filling process should start at a low level and stop at a high level.

Set alarm point:

  • A low level alarm or shutdown set point should be set below the open valve set point to ensure filling begins before the low level reaches this point.
  • For safety reasons, it is recommended to use an independent high level alarm or safety shutdown system in addition to the main control system.
  • Likewise, for process protection it is recommended to use an independent low level alarm or safety shutdown system.

The PLC, SCADA, DSC or independent level controllers mentioned above need to be provided by professional suppliers. If you do not have these systems and want to achieve control, you can use the level recorders provided by Sino-Inst.

The T710 series ultrathin paperless recorder adopts the new large-scale integrated circuits to realize the reliable protection and robust anti-jamming for input, output, power supply and signals. The recorder can achieve eight-channel universal signal input (the configurable and optional inputs include standard voltage, standard current, thermocouple, thermal resistance and millivolt), four-channel alarm output and one feed output. It has the RS485 communication port, Ethernet port, micro-printer port, USB device port and SD card socket. The recorder enjoys a powerful display function, which can achieve real-time graphic display, historical graphic recalling, bar graph display and alarm status display.

Alarm output: Output through normally open contacts of the relay;Contact capacity: 1A/250VAC and1A/24VDC (resistive load)(! Note: If the load excesses to the relay contact capacity, do not load directly.)
Feed output: DC24V±10%, load current: ≤100mA
Communication output:
RS485 communication port:Baud rates range: 2400 – 19200bps (settable);The standard MODBUS RTU communication protocol is adopted. The communication distances of the RS485 port is 1 km.Ethernet communication port:Communication speed: 10/100M, auto.

More Level Measurement Solutions

Ultrasonic Level Transmitter Installation Guide

What points should be paid attention to for Ultrasonic level transmitter installation? Ultrasonic level transmitter is a widely used non-contact/non-invasive liquid level meter. Including wastewater storage tanks, fuel storage tanks,…

Innovative Methods for Fluid Level Measurement

Fluid level measurement is a crucial, yet often overlooked, process spanning various industries, from manufacturing to oil and gas. Methods for measuring fluid levels have come a long way, evolving…

The control of cooling tower water level is the core to ensure stable and efficient operation of equipment. With Cooling Tower Level precise measurement, alarms and controls, we can maximize cooling tower efficiency and safety. Hopefully the above guidance will provide you with valuable assistance in ensuring your cooling tower system is operating at its best.

At Sino-Inst, we don’t just limit ourselves to level measurements. Dive deeper into our vast array of instruments tailored for condensate flow measurement, pressure measurement, and temperature measurement. With years of industry experience under our belt, we pride ourselves on being seasoned manufacturers and suppliers who understand the nuances of these instruments. Our expertise is our testament.

Here at Sino-Inst, we cater to custom requirements, ensuring you get the perfect fit for your needs. Reach out to us today and let’s engineer success together.

Request a Quote

Please enable JavaScript in your browser to submit the form

6″ Flow Meters List | 6 Inch- DN150 Connection

6″ Flow meters are specially designed for DN150, which is 6 inch pipes. If you happen to need to detect the flow of 6″ pipes. Then you can refer to the content of our blog. Hope this helps you find suitable 6″ flow meters.

Overview: What is a 6″ Flow Meter?

We usually say 6″ Flow Meter, and some people may default to 6″ Water Flow Meter, or 6″ Water Meter. But this is not rigorous. There are many types of flow meters. They can be 6″ electromagnetic flow meters, 6 ” Turbine flowmeter, 6″ ultrasonic flowmeter, 6″ mass flowmeter, 6″ mass flowmeter, 6″ gear flowmeter, etc. Different types of flowmeters are suitable for different media and different working conditions. So, We need to select an appropriate flow meter based on the actual measurement conditions.

Sino-Inst is a manufacturer of flow meters. Based on our many years of service experience, we have compiled the following content. Hope this helps you choose the right 6″ Flow Meter. Let’s take a look.

If you are new to flow measurement, please follow our steps to get familiar with it step by step.
If you are experienced, then you can choose to look directly at the type of flow meter that interests you.

Here you will find all the 6 inch sizes we offer.

Featured 6 inch Flow Meters

How to choose 6” flow meter?

Before choosing a 6″ flow meter, we should first know what kind of medium you are measuring?

The simplest distinction: gas or liquid?

If it is gas: what gas is it? Is it corrosive?
If it’s liquid: What liquid is it? Is it conductive? Is it corrosive? Is the viscosity higher? Whether there are particles, etc.

Why should the distinction be so clear? For example: you want to measure the water flow in a DN150 pipe. For different types of water, we will recommend different flow meters. And their prices may vary a lot.

For example, measure the water in DN150 pipes. There are many types of water, including: pure water, clean water, municipal water, fresh water, fire water, chilled water, RO water, soft water, raw water, rainwater, geothermal water, thermal condensate water, seawater, drinking water, hard water, thermal water Water, sewage, acidic water, drinking water, river water, tap water, industrial sewage, boiler water, chlorinated water, borehole water, distilled water, wastewater containing suspended particles, purified water, mineral water, deionized water, etc.

If the choice is simple, then electromagnetic flowmeter is the first choice.
In addition to some non-conductive RO water, deionized water, DM water, pure water, deionized water, etc. If you want to measure the volume flow of RO water, pure water, and deionized water, we can choose a 6-inch turbine flowmeter or a vortex flowmeter.
Mass flow meters can measure all of the above water, whether it is pure water or dirty water or water containing suspended solids. But the price of Coriolis flow meter is not cheap.

Therefore, in the first step of choosing a 6” flow meter, you must clearly know what the medium is in your pipeline.

Of course. In addition to knowing what the medium is, you also need to know the conditions inside the pipeline, the most basic ones: pressure and temperature. This is all you need to know.

Now that you know what’s going on inside your pipe, you need to understand the different types of 6″ Flow Meters.

6 inch Flow Meters Types

Let’s look at it step by step. First, let’s look at the types of DN150 flow meters that can measure liquids. And their respective measurement advantages and measurement ranges.

6″ Electromagnetic Flowmeter-The most commonly used Water Flowmeter

Magnetic Flow Meters: Suitable for conductive liquids, these flow meters measure flow rate based on Faraday’s law of electromagnetic induction. They are ideal for applications with corrosive or abrasive fluids.

The parameter configuration of the 6-inch electromagnetic flowmeter is as follows:

  • Electromagnetic Flowmeter
  • DN150-6 inches
  • Lining: Polyurethane, Teflon, rubber, polyurethane (PU), PFA, etc. optional.
  • Flow sensor electrode material: 316L SUS, Hastelloy B, Hastelloy C, titanium, tantalum, tungsten carbide, platinum, etc. optional.
  • Power supply: 24V DC or 220V AC power supply or battery power supply;
  • Output: RS485 Modbus RTU; optional HART protocol, pulse output, current 4-20mA output or frequency output;
  • LCD displays instantaneous flow and cumulative total
  • Integrated flange connection: flange end connection, RF, 6”, ANSI 150LB, #300, 600LB, JIS 10K, PN16, PN25, PN40, etc.
  • Flow range: 30-600 m3/h, 132-2641 GPM.
  • Accuracy: 0.5%
  • Temperature resistance: 70℃
  • Pressure resistance: 16bar

6″ Tubrine Flowmeter

Turbine Flow Meters: These flow meters use a spinning turbine rotor to measure flow rate. The rotor’s rotation frequency is proportional to the fluid velocity, making them ideal for clean, low-viscosity fluids.

The conventional configuration of DN150 turbine flowmeter is as follows:

  • Liquid turbine flow meter
  • DN150
  • DC24V
  • Output two-wire system 4~20mA
  • LCD displays instantaneous flow and cumulative total
  • Body material: 304 stainless steel, optional 316 stainless steel
  • Impeller 2Cr13
  • DN150 flange connection
  • Flow range: 30~300m3/h
  • Accuracy 0.5%
  • Temperature resistance 120℃, high temperature and extremely low temperature parameters can be customized;
  • The pressure resistance is 6.3Mpa, and the high pressure can be customized to 25Mpa or 42Mpa;

6 inch coriolis mass flow meter

Coriolis Flow Meters: By measuring the mass flow rate directly, these flow meters provide highly accurate measurements for liquids, gases, and slurries. Their unique ability to measure mass flow and density makes them versatile and reliable.

The conventional configuration of DN150 Coriolis mass flow meter is as follows:

  • Coriolis mass flow meter
  • DN150,
  • Flow range: 0~360000kg/h
  • Temperature range: -100~200℃
  • Pressure range: 0~4.0MPa
  • Accuracy: 0.1%
  • Display: cumulative+instantaneous+density+temperature
  • Material: measuring tube 316L, shell SS304
  • Explosion-proof level: ExdibIICT6 Gb
  • Protection level: IP67
  • Output signal: 0-10KHz, 4-20mA
  • Communication method: RS485, MODBUS
  • Power supply: 24VDC or 220VAC, integrated
  • Flange standards: GB/T 9119-2010, ANSI 150#, JIS 5k, etc. optional.

6 inch ultrasonic flow meter

Ultrasonic Flow Meters: By measuring the transit time or Doppler shift of ultrasonic signals, these non-invasive flow meters can accurately measure liquid and gas flow rates without contacting the fluid.

The configuration of ultrasonic flowmeter is relatively flexible. You can choose handheld host, wall-mounted host, etc.
Sensors can be selected from external clamp type, plug-in type, pipe type, etc.

It can be configured flexibly as long as it meets your installation needs. You can even add a temperature sensor to become a heat measuring instrument. More about: New Products! Insertion Type Ultrasonic Flow Meter-Heat Meter–Mono/multi-Channel

6 inch Oval gear flow meter

Positive Displacement Flow Meters: These flow meters measure flow rate by capturing a fixed volume of fluid and counting the number of times the volume is filled and emptied. They are ideal for high-viscosity fluids and applications requiring high accuracy.

For media with different viscosity, the measuring range of DN150 Oval Gear Flow Meter is also different. for example:

  1. Viscosity: 0.6—2mPa.s, measuring range: 45—190 m³/h
  2. Viscosity: 2—200mPa.s, measuring range: 34—190 m³/h、
  3. Viscosity: 200—1000mPa.s, measuring range: 27-133 m³/h
  4. Viscosity: 1000-2000mPa.s, measuring range: 19-95 m³/h

Ok. The above are several liquid flow meters we commonly use. Next, let’s look at the gas flow meter.

6 inch vortex flowmeter

Vortex Flow Meters: By measuring the frequency of vortices shed from a bluff body, vortex flow meters can accurately measure the flow rate of liquids, gases, and steam. Their robust design and low maintenance make them popular in various industries.

Common configurations of 6″ vortex flowmeters are as follows:

  • Vortex flowmeter
  • DN150
  • DC24V
  • Output: two-wire system 4~20mA, pulse, etc. optional.
  • LCD displays instantaneous flow and cumulative total
  • Body material 304 stainless steel
  • 600# American standard flange connection
  • Flow range: liquid 40~350m³/h; gas 280~2240m³/h; steam 1.4~11t/h;
  • Accuracy 1.5%
  • Temperature resistance: 100℃, 250℃, 350℃;
  • Pressure and temperature compensation optional.

6 inch thermal mass flow meter

Thermal gas mass flowmeter is designed based on the principle of thermal diffusion. The instrument uses the constant temperature difference method to accurately measure gas. Widely used in the measurement of oxygen, nitrogen, hydrogen, chlorine, torch gas, blast furnace gas, biogas and other gases.

The general configuration of the 6 inch thermal mass flow meter is as follows:

  • Thermal gas mass flow meter
  • DN150
  • AC220V/DC24V dual power supply
  • Output 4~20mA with RS485 communication
  • LCD displays instantaneous flow and cumulative total
  • Body material 304 stainless steel
  • Flange connection
  • Flow range: 64~6400Nm3/h
  • Accuracy 1.5%
  • Temperature resistance 100℃, 220℃ optional
  • Pressure 1.6Mpa

Inline or Insertion

Of course, finally you need to consider the structure of the flow meter. Most of the flow meters we mentioned above can be either inline type or plug-in type. For example, the DN150 pipe for measuring urea solution can be a 6″ inline electromagnetic flowmeter or a 6″ plug-in electromagnetic flowmeter. The vortex flow meter can also be a 6″ insertion type vortex flow meter, and the thermal flow meter can be a 6″ insertion type thermal flow meter.

More Flow Measurement Solutions

We, Sino-Inst, are a professional flow meter manufacturer. The 6″ Flow Meters supplied by us are widely used in various industries in various countries.

Our 6″ Flow Meters meet different user measurement needs. Whether you need to measure wastewater, seawater, urea, ammonia, sulfuric acid and other liquids, or dry chlorine, wet chlorine, biogas, compressed air, hydrogen, nitrogen, etc. gases. We can select suitable 6″ Flow Meters for you based on your measurement parameters.

If you have any questions about purchasing 6″ Flow Meters, please feel free to contact our engineers for free consultation!

Request a Quote

Please enable JavaScript in your browser to submit the form

What Is Vortex Flow Meter? and FAQs

What Is Vortex Flow Meter?

A vortex flow meter is an advanced instrument designed to measure the flow velocity of fluids, both liquids,steam and gases, within a conduit or pipeline. Drawing upon the principles of fluid dynamics, it capitalizes on the formation of vortex trails, often referred to as the ‘Von Kármán Effect.’ As the fluid passes a strategically placed bluff body inside the meter, vortices are shed alternately on either side. The frequency of these shedding vortices is directly proportional to the fluid’s velocity. By capturing this frequency with sophisticated sensors, the vortex flow meter translates it into a precise flow rate. Valued for its durability and minimal pressure drop, it is a preferred choice across various industrial applications.

Featured Vortex Flow Meters

How Does Vortex Flow Meter Work?

A non-streamlined vortex generating body (bluff body) is provided in the fluid. Then two rows of regular vortices are generated alternately from both sides of the vortex generator. This vortex is called a Karman vortex street. As shown below.

The vortex rows are arranged asymmetrically downstream of the vortex generator.
Suppose the frequency of vortex occurrence is f, the average velocity of the incoming flow of the measured medium is V, the width of the upstream surface of the vortex generating body is d, and the diameter of the surface body is D.
According to the Karman vortex street principle, there is the following relationship:


In the formula:
F – Karman vortex frequency generated on one side of the generating body
St-Strohal number (dimensionless number)
V-average flow velocity of fluid
d-width of vortex generator

It can be seen that the instantaneous flow rate can be calculated by measuring the Karman vortex separation frequency. Among them, Strohal number (St) is a dimensionless unknown number,

The figure below shows the relationship between Strohal number (St) and Reynolds number (Re).

In the straight part of St=0.17 in the curve table, the release frequency of the wandering vortex is proportional to the flow rate, which is the measurement range of the vortex flow sensor.

As long as the frequency f is detected, the flow rate of the fluid in the pipe can be obtained. The volume flow rate can be obtained from the flow rate V. The ratio of the measured pulse number to the volume is called the instrument constant (K). See formula (2)


In the formula:
K=instrument constant (1/m³).
N=Number of pulses
Q=Volume flow rate (m³)

Composition of vortex flowmeter

A vortex flowmeter is like a clever detective that figures out how fast a liquid or gas is moving in a pipe. Let’s break it down:

  • Bluff Body: This is a small, flat piece that sticks out in the pipe. When fluid (like water or gas) flows past it, it creates little swirls or whirlpools, called vortices.
  • Sensors: These are the meter’s “ears.” They listen to and count these swirls. More swirls mean the fluid is moving faster.
  • Transmitter: Think of this as the meter’s “brain.” It takes the count from the sensors and works out the flow rate, or how fast the fluid is moving.
  • Display: Just like a screen that shows the score in a video game, the meter has a display. It shows the flow rate so people can read it easily.

In many places, from factories to water plants, people rely on vortex flowmeters because they’re accurate and trustworthy. They help make sure everything runs smoothly and safely.

What Are Multivariable Vortex Flow Meters?

MultiVariable Vortex Meter is a product concept proposed by Rosemount.
The Rosemount™ 8800 MultiVariable Vortex Meter automatically adjusts for changes in density, making it easy to accurately measure mass and corrected volume in steam and liquid applications. No moving parts or need to install impulse lines means fewer process upsets and smoother operations for your plant.

Rosemount’s Multivariable Vortex Flow Meters certainly have their unique technical advantages. For our Sino-Inst vortex flowmeter, we provide integrated temperature and pressure compensation or split temperature and pressure compensation.

So you may ask what is temperature pressure compensation?

What is the temperature and pressure compensation of a vortex flowmeter?

Temperature and pressure compensation: Temperature and pressure compensation is the correction made by the influence of the measured object on the pressure and temperature measurement under a certain pressure and temperature. At Tongchang, we provide the most temperature and pressure compensation when measuring gas flow, which is to obtain the flow rate under standard conditions by performing temperature and pressure compensation on the gas flow under working conditions.

Flow meters for the following measurement situations require temperature or pressure compensation:

  1. When measuring gas, temperature and pressure need to be compensated at the same time. Gases are generally settled based on standard volume flow rates. Because the volume flow rate of the gas changes when the temperature or pressure changes, the flow rate will change.
  2. When measuring saturated steam, single temperature compensation or single pressure compensation is required. The density of saturated steam has a fixed corresponding relationship with temperature or pressure (saturated steam density table). Knowing any of these, the density of saturated steam can be determined.
  3. When measuring superheated steam, temperature and pressure need to be compensated at the same time. Steam is generally settled in terms of mass flow rate. Because either temperature or pressure changes, the density of the steam changes and the mass flow rate changes accordingly.
  4. When measuring liquids, pressure compensation is generally not required. Below 5MPa, generally only the influence of temperature is considered, and temperature compensation is required for accurate measurement. In general measurements, you do not need to use any compensation; when measuring some hydrocarbons (such as crude oil), simultaneous compensation of temperature and pressure is generally required.

What Are Insertion Vortex Flow Meters?

Insertion vortex flowmeters are mainly used for flow measurement of large-diameter gas, liquid, and steam media fluids in industrial pipelines in various industries. For large pipe diameters, inline installation costs can be high.
Insertion vortex flowmeters are installed by drilling a hole in the process pipe with connections. Then insert the probe into the hole through the connection on the meter. For insertion vortex flowmeters, the probe should be inserted into the part of the pipe where the flow rate is highest.

What are the Applications for Vortex Flow Meters?

  • Food & Beverage: Monitoring ingredient flow during product creation.
  • Factories: Monitoring liquid and gas usage in production.
  • Power Plants: Measuring steam flow for electricity generation.
  • Oil and Gas: Overseeing extraction and transportation processes.
  • Water Treatment: Managing water flow for purification.
  • Pharmaceuticals: Ensuring precise measurements for medicine production.
  • Chemical Industries: Overseeing chemical reactions and product development.
  • HVAC Systems: Regulating heating, ventilation, and air conditioning flows.
  • Pulp & Paper Mills: Managing liquid processes in paper production.
  • Agriculture: Supervising irrigation and water distribution for crops.

What Media Can Vortex Flow Meters Measure?

We all know that vortex flow meters can measure gas, steam, and liquid. Based on our many years of service experience at Sino-Inst, we have compiled some measurable media:

  • Water, Chilled or Hot
  • Ultra-pure Water
  • De-ionized Water
  • Glycol Mixtures
  • Solvents & Acids
  • Natural Gas
  • Steam (Saturated and Superheated)
  • Air and Compressed Air
  • Chemicals (Various Types)
  • Hydrocarbons (like oil)

This is just a small part, you are welcome to leave a comment to add more measurable media.

What are the Advantages of Vortex Flow Meters?

  • All-Rounder: Measures gases, liquids, and steam effectively.
  • Budget-Friendly Setup: The initial cost isn’t sky-high.
  • Low Maintenance: If the media is clean, it’s mostly fuss-free.
  • Trustworthy: They are reliable and give accurate readings.
  • Built to Last: No moving parts means less wear and a longer life.
  • Flexible Installation: Place it at any angle, just make sure the core part (bluff body) is submerged.
  • Unfazed: Temperature or pressure changes? It just shrugs them off.
  • No Extra Heating Needed: Unlike some meters, it doesn’t need external heat to function.
  • Efficient: Generally, it doesn’t cause much pressure loss.

What are the Disadvantages and Limitations of Vortex Flow Meters?

  • Picky with Thick Liquids: Not the best choice for super thick or sludgy media.
  • Stay Clean: Doesn’t like media that leaves a residue or forms crystals.
  • Might Need Filters: Sometimes, extra equipment like strainers are needed.
  • Precision Matters: Extremely high or low flow speeds? It might falter a bit.
  • Steady Flow Needed: Pulsating or jumpy flows aren’t its cup of tea.
  • Space Hungry: It often asks for a long straight pipe path for best results.
  • Not the Batching Type: If you’re into batching processes, it might not be the best fit.

What is the difference between vortex and mass flow meter?

Vortex flowmeters and mass flowmeters are both important flow measurement instruments. Mass flow meters have a unique point: they can measure density.
Other comparison details are as follows:

ParameterVortex Flow MeterMass Flow Meter
Suitable forLiquids, gases, steamAlmost all liquids & gases, including complex fluids
Not suitable forHigh viscosity media, slurriesVery few; possibly some specialized applications
AccuracyInline type: ±1.5%R,
Insert type: ±2.5%R,
Required upstream pipe (diameters)There are requirements for straight pipe sections. For example, there is a 15DN straight pipe section upstream and a 5DN straight pipe section downstream.The installation requirements are not high. There are no requirements for upstream and downstream straight pipe sections.
Relative costGenerally lowerTypically higher due to complexity
Effect of viscosityCan impact performance; not for high viscosityMinimal effect; can handle varying viscosities
Moving partsNoneMight have sensors & heaters but typically no moving parts
Pipe sizeDN15~`DN2000DN3~DN200

More Flow Measurement Solutions

Vortex Flow Meter Manufacturers

With a rich history and dedication to innovation, Sino-Inst has become a trusted name in the flow measurement industry. Over the years, our expertise in crafting state-of-the-art vortex flow meters has solidified our position as a leader in this domain.

Sino-Inst offers a versatile range of flow meter solutions, including both inline and insertion models. For those looking beyond traditional vortex meters, we proudly present our specialized solutions tailored for unique application requirements.

Ensuring reliability and precision, our products are a testament to our commitment to engineering excellence and customer satisfaction. To explore our diverse product range and delve deeper into the world of advanced flow measurement solutions, visit the Sino-Inst product page.

Request a Quote

Please enable JavaScript in your browser to submit the form

Guide to Pulse Flow Meters: Must Know Before Shopping!

Pulse flow meters stand as a paragon of modern flow measurement technology. Pulse signals, often relayed to devices like PLCs as input data, help industries measure and manage flow with unparalleled precision. While many might be familiar with the traditional water meter or turbine flow transmitter, the evolution of flow measurement technology has introduced sophisticated devices such as the electromagnetic flow meters and dual pulse systems. The role of pulse signals, especially in devices like the turbine flowmeter, is crucial. It ensures the accurate translation of magnetic flow into actionable data, transforming how industries monitor and optimize their operations.

Featured Pulse Flow Meters

what is pulse output signal?

A pulse output signal is an integral facet of modern flow measurement. Essentially, it is a series of electronic pulses generated each time a specific volume of fluid, such as water, passes through a meter. Think of it as the flow meter’s heartbeat, where every pulse equates to a predetermined volume of fluid.

The mechanics behind this are quite fascinating. Within many flow meters, such as turbine flowmeters, the fluid’s movement causes an internal rotor to turn. As this rotor spins, it interacts with sensors—often magnetic ones. Each interaction results in the generation of an electronic pulse. The number of these pulses directly corresponds to the volume of fluid that has passed through the meter. This real-time pulsating data representation is invaluable as it grants accurate, instantaneous measurements, making data interpretation and integration seamless in various systems.

Pulse Output vs 4-20mA

When diving into the world of flow measurements and signal outputs, a frequent comparison arises between pulse output and the traditional 4-20mA signal.

The 4-20mA signal is a staple in analog devices, providing a continuous current signal that correlates to the measurement variable. On the flip side, pulse output offers discrete, distinct signals.

While both pulse output and 4-20mA signals have their unique strengths, the digital character of pulse outputs typically allows for more precise data. This is especially true in applications that demand rapid response or detailed flow analysis. In essence, while 4-20mA signals give a continuous overview, pulse outputs provide granular, moment-by-moment insights, leading to a richer understanding of flow dynamics.

Pulse Flow vs. Continuous Flow

In the world of flow measurement, two prominent types emerge: pulse flow and continuous flow. Understanding their distinctions is pivotal for industries aiming to optimize their fluid management processes.

Pulse Flow Meters:

Pulse flow meters, as the name suggests, measure flow using a pulsating technique. With every predefined volume of fluid that passes through, the meter emits an electronic pulse. This digital representation makes it ideal for applications requiring precision and rapid data collection.

Key Features of Pulse Flow Meters:

  • Real-time Data: These meters provide instantaneous measurements, giving an up-to-the-moment view of flow rates.
  • Digital Precision: As they operate based on discrete pulses, they can offer granular data, capturing even minor fluctuations in flow.
  • Versatility: Pulse flow meters can be integrated into various systems, making them suitable for diverse applications.

Continuous Flow Meters:

On the other hand, continuous flow meters offer a steady, uninterrupted measurement of fluid flow. Instead of discrete pulses, they provide a continuous analog signal, representing the flow rate over a period.

Key Features of Continuous Flow Meters:

  • Consistent Monitoring: These meters are excellent for applications where continuous monitoring is essential, providing a holistic view of flow dynamics.
  • Analog Output: They typically use signals like 4-20mA, offering a smooth data curve over time.
  • Broad Range: Continuous flow meters can capture a wide range of flow rates, making them versatile for varied applications.

In Conclusion:
Choosing between pulse and continuous flow meters boils down to the specific needs of an application. Pulse flow meters shine in scenarios demanding detailed, real-time data. In contrast, continuous flow meters are the go-to for holistic, round-the-clock monitoring. By understanding their core differences, industries can make informed decisions, ensuring optimal flow management.

Pulse Flow Meter Working Principle

The Core Principle:
At its essence, a pulse flow meter operates by translating the flow of fluid into electronic pulses. Think of these pulses as the meter’s heartbeat, with each beat or pulse representing a specific volume of fluid that has flowed through the meter.

How It Works:

  • Fluid Interaction: As fluid (be it water, oil, or any other liquid) passes through the meter, it interacts with a mechanism inside, often a rotor or a turbine.
  • Rotor Movement: This fluid movement causes the rotor to spin. The speed of this rotation correlates directly with the flow rate of the fluid.
  • Sensing the Rotation: Surrounding this rotor are sensors, usually of a magnetic nature. Each time the rotor completes a specific rotation or passes a point, it triggers these sensors.
  • Pulse Generation: Every trigger from the rotor to the sensor results in the creation of an electronic pulse. This is relayed as an output from the flow meter.
  • Data Interpretation: The number of pulses over time gives a precise measure of the volume of fluid that has passed through. The faster the fluid flow, the quicker the pulses are generated.

Why Pulse Signals Matter:
Pulse signals offer a clear advantage – digital precision. Unlike analog signals that provide a continuous representation, pulse signals give a moment-by-moment account of flow, making data interpretation straightforward and accurate.

Flow Meter Pulse Output to PLC: A Seamless Integration for Precision

In the landscape of industrial automation, the synergy between devices can be the linchpin of operational efficiency. A prime example of this is the integration of flow meters, specifically their pulse outputs, with Programmable Logic Controllers (PLCs). Let’s explore this integration and its significance.

In essence, when fluid passes through a flow meter, it results in the generation of electronic pulses. Each pulse represents a specific volume of the fluid, offering a digital snapshot of the flow rate.

PLCs serve as the brains behind many automated systems. They accept inputs from various devices, process this data based on programmed logic, and then generate outputs to control equipment or processes.

The Integration Process:

  • Signal Transmission: The flow meter generates pulse outputs based on fluid flow. These pulses are then transmitted as electrical signals to the PLC.
  • Data Interpretation: Upon receiving the signals, the PLC interprets the frequency of pulses to determine the flow rate. The higher the frequency, the greater the flow.
  • Actionable Outputs: Based on the interpreted data and the logic programmed into the PLC, decisions are made. This can range from adjusting valves, triggering alarms, or even integrating with broader systems for holistic process control.

Benefits of Integration:

  • Real-time Control: By continuously monitoring flow rates, PLCs can make instant adjustments, ensuring optimal operations.
  • Data Accuracy: The digital nature of pulse outputs ensures precision, leading to accurate and reliable PLC actions.
  • System Flexibility: The ability to program PLCs means that as system requirements change, adjustments can be made without altering the physical infrastructure.

The integration of flow meter pulse outputs with PLCs exemplifies the power of modern automation. This seamless synergy offers industries a reliable, flexible, and precise method to monitor and control fluid flow, driving efficiency and accuracy in operations. By understanding this integration, professionals can better harness the potential of their systems, leading to superior outcomes.

Applications of Pulse Flow Meters Across Industries

Pulse flow meters, with their unique ability to capture flow data through electronic pulses, have become an invaluable tool in various industries.

  1. Manufacturing:
    In the vast world of manufacturing, maintaining a consistent and accurate flow of liquids—whether it’s raw materials, coolants, or finished products—is paramount. Pulse flow meters offer real-time monitoring, allowing industries to maintain product quality, ensure safety, and optimize processes.
  2. Pharmaceuticals:
    Accuracy is non-negotiable in the pharmaceutical industry. When formulating medications, precise quantities of liquid ingredients need to be mixed. Pulse flow meters ensure that these formulations are consistent, safeguarding the efficacy and safety of medical products.
  3. Energy & Power Generation:
    In power plants, especially those relying on liquid fuels or coolants, monitoring flow is critical. Pulse flow meters track the rate of fuel consumption or coolant flow, enabling plants to optimize operations and reduce wastage.
  4. Agriculture:
    Modern agriculture heavily relies on irrigation systems. Pulse flow meters help farmers measure the flow of water, ensuring crops receive the right amount, neither too little nor too much.
  5. Water Treatment:
    In water treatment plants, accurate flow measurement is key for processes like filtration and chemical treatment. Pulse flow meters provide reliable data, ensuring water quality and efficient treatment.
  6. Food & Beverage:
    Whether it’s brewing beer or producing dairy products, the flow of liquids is at the core of the food and beverage industry. These meters ensure consistency in production, guaranteeing that every bottle, carton, or can meets quality standards.
  7. Chemical Processing:
    In chemical plants, reactions often require exact quantities of liquid reactants. Pulse flow meters allow for precision, ensuring desired outcomes and minimizing risks.

More Flow Measurement Solutions


A pulse flow meter operates by translating the flow of fluid into electronic pulses. As fluid flows through the meter, it typically causes a rotor or turbine inside to spin. As this rotor turns, it interacts with sensors, often of a magnetic nature. Each interaction results in the creation of an electronic pulse, with each pulse representing a specific volume of fluid that has passed through the meter.

To check a pulse flow meter:

Ensure the meter is properly installed and there’s no blockage in the flow path.
Check the pulse output wires and connections to ensure they’re correctly connected and free from damage.
Monitor the pulse output signals using a digital multimeter or a pulse counter. Compare the readings to the expected flow rate.
Periodically calibrate the flow meter to ensure its accuracy.

The “best” flow meter in terms of accuracy varies depending on the application and requirements. Pulse flow meters are highly accurate for many liquid applications. However, for specific use cases, other types like Coriolis, ultrasonic, or magnetic flow meters might offer higher precision. It’s essential to consult with a flow measurement expert or a trusted supplier like Sino-Inst to determine the most accurate flow meter for your specific needs.

The output voltage of a flow meter pulse typically depends on the design and model of the flow meter. Commonly, pulse outputs from flow meters can range from a low-level signal (less than 5V) to a higher level signal (up to 24V or more). It’s crucial to refer to the specific flow meter’s datasheet or consult with the manufacturer to determine the exact output voltage for a particular model.

From everyday products to specialized applications, pulse flow meters play a silent yet significant role. They stand as guardians of quality, efficiency, and safety across industries. Recognizing their applications allows professionals to better utilize them, driving innovation and precision in their respective sectors.

But flow measurement doesn’t stop at pulses. From crude oil flow measurement, ensuring the smooth operation of our energy sectors, to liquid level measurement, vital for reservoirs, tanks, and storage facilities. Moreover, the precise temperature measurement instruments play a crucial role, especially in industries where slight temperature variances can impact product quality or safety.

With a rich legacy in the field, Sino-Inst stands at the forefront of measurement technology. As an experienced manufacturer and supplier, our portfolio extends beyond pulse flow meters. Whether you need customized solutions or off-the-shelf instruments, our team is ready to assist, ensuring you have the right tools for your unique requirements.

Request a Quote

Please enable JavaScript in your browser to submit the form