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Transmission Fluid Pressure Sensor XGZP136

  • Absolute Pressure Type
  • 0~7bar…50bar
  • MEMS piezoresistive principle
  • Isolated mebrance oil-filling structure
  • Radial seal installation method
  • High temperature resistant
  • Various media resistant
  • Low temp.drift
    Excellent stability and linearity
    Constant voltage excite(constant current power supply is customized)

Water Pressure Transducer XGZP6171

  • 0.5~4.5V output
  • Sealed Gage Pressure Type (0BAR~10BAR/16BAR/25BAR)
  • Ceramic Diaphragm Construction
  • Smart and Exquisite, High Stability
  • Advanced Anti-interference, High Insulation
  • Anti-overload&Shock&Vibration
  • Anti-waterhammer, Anti-leak, Corrosion-resistant
  • Easy-to-use, Low Cost

Pressure Transmitter 4-20ma XGZP6103

  • 4~20mA output
  • Sealed Gage Pressure Type(0BAR~10BAR/16BAR/25BAR)
  • Ceramic Diaphragm Construction
  • Smart and Exquisite, High Stability
  • Advanced Anti-interference, High Insulation
  • Anti-overload&Shock&Vibration
  • Anti-waterhammer, Anti-leak, Corrosion-resistant
  • Easy-to-use, Low Cost

Low Pressure Transducer XGZP6147

  • Sealed Gage (Positive&Negative) Pressure Type
  • Pressure range ( -100kPa…0kPa…200kP)
  • MEMS Silicon Sensor
  • Smart and Exquisite, High Stability
  • Anti-overload&Shock&Vibration
  • For Non-corrosive gas or air or liquid
  • Easy-to-use, Low Cost

Coolant Level Sensor XGZP6181

  • Absolute Pressure Type
  • 1bar~11bar(Available to customize range under 50bar)
  • MEMS oil-filling construction
  • Fast response
  • Anti-overload&Shock&Vibration
  • High reliability and stability
  • Low Cost

XGZP6802 Pressure Transmitter

  • Diffusion Silicon Diaphragm sensor
  • Integrally test& temperature compensation for full temp.range
  • Anti-shock,anti-vibration,anti-interference
  • Reversed-polarity protection
  • Zero&FS calibration available
  • Automatic production manufacturing, stable and reliable

Pressure Transmitter Introduction

What is a Transmitter?

Transmitter Definition: Pressure transmitter is a type of electronic pressure sensor that converts a pressure signal into an analog electrical signal. It consists of a sensing element, amplifier circuit, and digital/analog output. The transmitter pressure sensing element detects the pressure and converts it into an electrical signal. This signal is then amplified by the amplifier circuit before being transmitted to the digital or analog output.

What Does a Pressure Transmitter Do?

A pressure transmitter is a device used to measure the pressure of liquids and gases. The device converts the pressure into an electrical signal by means of a transducer. Usually consists of a pressure-sensitive surface area made of steel, silicon, or other materials, depending on the composition of the analyte.

Pressure transmitters are used in a wide range of applications, including industrial process control and monitoring automotive systems, medical equipment, weather stations, etc. Because of their common demand, pressure transmitters are often very customizable by pressure range, accuracy, connection type, output, IP class, and even more variables. They can measure both absolute and gauge pressures and are available in a variety of ranges and accuracy levels to suit different applications.

Pressure transmitters can be used to detect overpressure conditions, control pressure in a system, monitor the pressure in a system and measure pressure in a system. They are commonly used in industrial automation, process control, and other applications where pressure measurement is important.

Is a Pressure Transmitter Analog or Digital?

A pressure transmitter can be either analog or digital, depending on the type of transmitter and the output signal it generates.

Analog pressure transmitters output a continuous electrical signal proportional to the input pressure.

Digital pressure transmitters, also known as smart pressure transmitters, output a digital signal that can be read by a computer or other electronic device. These digital signals can be sent over a network, allowing for remote monitoring and control of the transmitter.

It is best to consult the manufacturer or an expert to ensure that the transmitter you choose has an output signal that is compatible with your system’s data acquisition equipment.

Pressure Transmitter Working Principle

How Does a Transmitter Pressure Work?

The working principle of a pressure transmitter involves the conversion of a physical pressure signal into an electrical signal that can be measured and transmitted to other devices. This is accomplished through the use of a sensing element, which is typically made up of a material that changes its electrical properties in response to mechanical stress.

For example, some pressure transmitters use a strain gauge sensing element, which consists of a thin strip of metal that deforms when subjected to pressure. As the metal deforms, its resistance changes proportionally, generating an electrical signal that can be amplified and transmitted.

Other types of sensing elements used in pressure transmitters include piezoelectric crystals and capacitive sensors. Regardless of the type used, the output signal from the sensing element is typically processed by an amplifier circuit within the transmitter before being sent out as an analog or digital signal.

Pressure transmitters offer accurate and reliable measurement capabilities for a wide range of industrial applications where precise control over pressure is critical for safe and efficient operation.

Source: Pressure Transmitter Explained | Working Principle by Realpars

How Do Differential Pressure Transmitters Work?

Differential pressure transmitters work by measuring the difference in pressure between two points in a system. This is achieved by using two separate sensing elements within the transmitter, each of which measures the pressure at one of the two points.

The two sensing elements are typically connected to opposite sides of a diaphragm, which flexes in response to changes in pressure. As the diaphragm flexes, it causes a corresponding change in resistance or capacitance within each sensing element, generating an electrical signal that is proportional to the differential pressure between the two points.

The output signal from each sensing element is then processed by an amplifier circuit within the transmitter before being combined and sent out as an analog or digital signal. By measuring the difference in pressure between two points, differential pressure transmitters can be used for a variety of applications such as flow measurement, level measurement, and monitoring filter performance.

Select pressure transmitter vs differential pressure transmitter depends on the specific application requirements for measuring either single-point or dual-point measurements of fluid pressures.

Types of Pressure Transmitters

types of pressure transmitter

How Many Types of Pressure Transmitters Are There?

There are several pressure transmitter types available, each designed to meet specific measurement needs. Some common types include:

  • Absolute pressure transmitter – Measures the pressure relative to a perfect vacuum.
  • Gauge pressure transmitter – Measures the pressure relative to atmospheric pressure.
  • Differential pressure transmitter – Measures the difference in pressure between two points.
  • Sealed pressure transmitter – Measures the pressure of a sealed system, typically in industrial settings.
  • Vacuum pressure transmitter – Measures the pressure below the atmospheric pressure.
  • High-pressure transmitter – Measures high-pressure range, typically used in oil and gas applications.
  • Low-pressure transmitter – Measures low-pressure range, typically used in HVAC applications.
  • Smart pressure transmitter – With digital communication capabilities, typically used for remote monitoring.

Each types of transmitter have its own specific applications and advantages, making it essential to choose the right type of transmitter for a given application in order to ensure accurate measurement.

Pressure Transmitters Applications

What is a Pressure Transmitter Used For?

Pressure transmitter function is used in various industrial and commercial applications, offering accurate, reliable readings of fluid pressure levels.

Here are some common applications of pressure transmitters:

  • Oil and Gas Industry: Used to measure the pressure of fluids in pipelines, tanks, and other equipment, they are also used to monitor wellhead pressures during drilling operations.
  • Chemical Processing Industry: Monitor fluid pressure throughout production processes such as distillation or mixing.
  • Water Treatment Plants: Used to monitor water pressure at different stages of treatment, including filtration and distribution.
  • Food and Beverage Industry: Used to measure pressure during production processes like pasteurization or carbonation.
  • HVAC Systems: Used to measure the pressure of refrigerants in order to control temperature levels.
  • Medical Equipment: Ranging from blood pressure monitors to ventilators rely on them for accurate readings of bodily fluids like blood flow.Pressure transmitters with high accuracy, reliability, and stability over time, making them ideal for critical applications where safety and performance are paramount.

Selecting a Pressure Transmitter

How Do I Choose a Pressure Transmitter?

There are several factors to consider when choosing the right pressure transmitter for a given application:

Pressure range: The first consideration is the pressure range that needs to be measured. Make sure to choose a transmitter that can measure the full range of pressures required for your application.

Output signal: Consider the type of output signal that is compatible with your system’s data acquisition equipment.

Accuracy: The accuracy of the pressure transmitter is also important, as it determines how closely the actual pressure will be measured relative to the desired pressure.

Media compatibility: Verify that the transmitter materials are compatible with the media being measured.

Environment: Consider the environment in which the transmitter will be used, including temperature, humidity, and potential exposure to corrosive chemicals or other hazards.

Electrical connection: Choose a transmitter with an electrical output compatible with your control system or monitoring equipment.

Physical size and mounting requirements: Ensure that the physical size and mounting requirements of the transmitter are appropriate for your application.

Explosion-proof: If you are using the transmitter in a hazardous location, make sure the transmitter is rated for that environment.

Brand and cost: Look for reputable pressure transmitter brands and the best pressure transmitter price to protect your investment.

Finally, It’s a good idea to consult with an expert or manufacturer to ensure that you choose the right pressure transmitter for your application.

Pressure Transmitter VS Pressure Switch VS Pressure Gauge VS Pressure Transducer

What is Difference Between Pressure Switch and Pressure Transmitter?

Pressure switches and pressure transmitters are similar in that they both measure pressure and generate an output signal, but they differ in their main function and the type of output signal they generate.

A pressure switch is a simple on/off a device that monitors pressure and indicates when a specific pressure level has been reached. It usually has a predetermined set point and when the pressure reaches or exceeds the set point, it sends an output signal indicating the set point has been reached. The output signal is usually a simple switch closure or open circuit.

A pressure transmitter, on the other hand, is a more advanced device that measures pressure continuously and generates an output signal proportional to the input pressure. The output signal can be analog or digital. It can also include other features such as temperature compensation signal processing and digital communication capabilities.

What is the Difference Between a Pressure Transmitter VS Pressure Gauge?

A pressure gauge and a pressure transmitter are both used to measure fluid pressure, but they differ in several ways:

Measurement method: A pressure gauge measures pressure through mechanical means, typically by using a spring or diaphragm that deflects in response to changes in pressure. A pressure transmitter, on the other hand, uses electronic sensors to convert pressure into an electrical signal.

Display: A pressure gauge typically has a dial face that shows the current pressure reading, while a pressure transmitter sends an electrical signal to a control system or monitoring equipment for display or further processing.

Accuracy: Pressure transmitters are generally more accurate than gauges due to their electronic measurement methods and ability to compensate for temperature effects and other factors that can affect accuracy.

Range: Pressure gauges are available in limited ranges, while modern digital transmitters can cover much wider ranges of pressure.

What is the Difference Between a Transducer VS Transmitter?

Pressure transducers and pressure transmitters are both used to measure fluid pressures, they are quite similar, but they differ in terms of their output signals and their intended use.

What is a pressure transducer and what does a pressure transducer do? A pressure transducer typically provides an electrical output signal that is proportional to the applied pressure. This signal may be a voltage, current, or resistance that varies with changes in pressure. Pressure transducers are often used in research and development applications where high accuracy and precision measurements are required.

In contrast, a pressure transmitter is designed to provide a standard electrical output signal, such as a pressure transmitter 4-20m mA or 0-10 VDC, that can be easily integrated into process control systems. Pressure transmitters are commonly used in industrial applications for monitoring and controlling processes such as chemical manufacturing, oil and gas production, and water treatment.

Another key difference between the transmitter vs transducer is the level of integration with other instrumentation. Pressure transmitters often include additional features such as temperature compensation, digital communication protocols for integration with PLCs or DCS systems, built-in self-diagnostics, and fail-safe features.

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