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Your Professional Pressure Transmitter Supplier

 

Our goal is to be your reliable partner for pressure transmitter in China. Xi'an Mihui Technology is a leading sensor manufacturer in China with over 15 years of expertise in R&D and production of pressure, temperature, flow, level, and humidity sensors. We have a skilled engineering team dedicated to refining every stage, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

 
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Why Choose Us

Manufacturing capabilities:

Our modern facility boasts complete in-house production capabilities, including wafer processing, precision packaging, and full parametric testing, with an annual production capacity exceeding 100,000 high-precision pressure sensors.

Our certifications:

Our products hold both Explosion-proof (Ex) and Intrinsically Safe (IS) certifications.

Quality control:

We adhere to a strict ISO9001 military-standard quality management system, ensuring exceptional reliability and environmental compatibility, ensuring stable operation even under extreme conditions.

Our services:

Our team of experts will recommend the most suitable products according to customer needs and provide detailed consultation, we ensure timely delivery, and we provide long-term service support.

 

 

Specification of Pressure Transmitter

 

 

Operating Temperature Range

-30°C~80°C

Compensation Temperature Range

0°C~50°C

Pressure Range

-100kPa…0~10kPa…70MPa

Over Pressure

1.5FS

Power Supply

15V~28V DC

Output Signal

4~20mA/0~5VDC/1V~5VDC/0~10VDC/1V~10VDC

Accuracy

±0.5%FS

Thermal Zero Shift

±0.03%FS/°C

Thermal Sensitivity Shift

±0.03%FS/°C

Electrical Connection

DIN43650A Connector or Specified

Process Connection

M20×1.5 Male or Specified

Protection Degree

IP65

 

Advantages of Pressure Transmitter

 
 
01
 

High-precision measurement:

Advanced laser trimming and temperature compensation algorithms ensure ±0.5%fs accuracy across the full temperature range, meeting the most demanding industrial requirements.

 
02
 

Exceptional long-term stability:

Proprietary packaging and stress isolation design minimize drift, reducing calibration frequency and maintenance costs.

 
03
 

Robust construction:

Full stainless steel (316l diaphragm) housing withstands harsh environments, including vibration, shock, and corrosive media.

General Industrial Pressure Transmitter

 

Features of Pressure Transmitter
 

Core technology & robust construction:

This industrial-grade general industrial pressure transmitter utilizes a high-quality silicon piezoresistive pressure sensor chip, encapsulated in silicon oil-filled packaging and housed within a laser-welded 316l stainless steel hermetically sealed enclosure. Designed specifically for extreme environments, it delivers precise absolute/gauge pressure measurements across a wide range from -100kpa vacuum to 70mpa high pressure. Its ip65 protection rating ensures reliable operation.

Metrological performance & calibration:

The general industrial pressure transmitter exhibits repeatability better than 0.05%fs and long-term drift below 0.1% per year. It maintains an accuracy of ±0.5% fs, supported by advanced temperature compensation (0.03%fs/°c). Factory calibration is performed within a constant temperature and humidity chamber.

 

Types of Pressure Transmitter
Gauge pressure transmitters:
These measure the pressure relative to the atmospheric pressure. They are common in applications like tank pressure monitoring, where the pressure inside the tank needs to be monitored against ambient pressure.
Absolute pressure transmitters:
Designed to measure pressure relative to a perfect vacuum, these are often used in applications like atmospheric studies where precision is critical.
Differential pressure transmitters:
These measure the difference in pressure between two points. They are indispensable in flow and level measurement applications, ensuring optimal operations by monitoring pressure disparities across filters or along fluid pathways.

 

 

Application of Pressure Transmitter

 

 

 

Water pump pressure testing in supply systems: Critical component validation for potable water distribution infrastructure.

 
 

Submersible depth verification via hydrostatic pressure conversion: Precise depth determination through real-time pressure-to-depth algorithms.

 
 

Pipeline integrity monitoring for oil & gas transmission: Continuous pressure surveillance with automated leak detection alarms in liquid/gas pipelines.

 
 

Fluid system pressure diagnostics: Comprehensive testing of lubricants, hydraulic fluids, and process gases in industrial equipment.

 
 

Containment & environmental pressure monitoring: Level measurement across pressure vessels, storage reservoirs, lakes, and river systems.

 

 

Key Components of a Pressure Transmitter

 

Piezoresistive Differential Pressure Transmitter

The sensing element:

 

 

The sensing element is the frontline hero of a pressure transmitter. Think of it as a tiny detective that “feels” pressure changes. It’s usually made of materials like stainless steel or ceramic and uses technologies like piezoresistive or capacitive sensing.

Signal conditioning circuitry:

 

Raw electrical signals from the sensing element are messy—like static on a radio. That’s where the signal conditioning circuitry steps in. This component cleans up the signal, amplifies it, and adjusts it to a usable format. It might also compensate for temperature changes or vibrations that could skew results. Modern transmitters often include microprocessors here for smarter calibration.

Output module:

 

 

Once the signal is polished, the output module sends it to control systems or displays. Most transmitters use industry-standard outputs like 4-20ma analog signals or digital protocols (hart, foundation fieldbus). This part ensures your pressure data reaches its destination accurately—whether it’s a dashboard in a factory or a cloud-based monitoring system.

 

 

Packing and Shipping of Pressure Transmitter

 

 

Packing

Wooden box

Shipping

Shipped by road, sea, rail

 

 

FAQ

 

 

Q: What is the main difference between gauge and absolute pressure transmitters?

A: Gauge pressure transmitters measure relative to atmospheric pressure, whereas absolute pressure transmitters measure relative to a perfect vacuum. Thus, gauge transmitters are used where environmental conditions affect lightly, while absolute ones are critical in precision-demanding tasks.

Q: Can pressure transmitters be used in explosive environments?

A: Yes, some models are designed for use in potentially explosive environments. Ensure to select a transmitter with the appropriate explosion-proof or intrinsically safe certifications for such applications.

Q: How often should pressure transmitters be calibrated?

A: The frequency of calibration depends on the application, but as a rule of thumb, calibration should be performed annually or as recommended by the manufacturer to ensure consistent performance.

Q: How does a 4/20mA pressure transmitter work?

A: A 4-20mA pressure transducer works by converting the measured pressure into a current signal that ranges from 4mA to 20mA.

Q: What is another name for a pressure transmitter?

A: A pressure transducer, often called a pressure transmitter, is an electromechanical device designed to measure pressure with a high degree of accuracy. Pressure transducers sense applied pressure and output an electrical signal by using a combination of mechanical and electical compntents.

We're professional pressure transmitter manufacturers and suppliers in China, specialized in providing high quality customized products. We warmly welcome you to buy bulk pressure transmitter in stock here from our factory. For quotation, contact us now.

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