This pressure transmitter uses a high-precision, high-stability pressure sensor assembly from an internationally renowned company. Through a highly reliable amplification circuit and precise temperature compensation, it converts the pressure of the measured medium into4～20mADC, 0～5VDC, 0～10VDC and 1～5VDC and other standard electrical signals. The high-quality sensor, sophisticated encapsulation technology, and comprehensive assembly process ensure the excellent quality and optimum performance of this product. The product is available with various interface configurations and lead-out methods, meeting customer requirements to the greatest extent. It is suitable for use with various measurement and control devices.

Operating Principle

When a pressure signal acts on the sensor, the pressure sensor converts it into an electrical signal. After differential amplification and output amplification, the signal is finally converted through the V/A voltage-to-current conversion into a standard 4-20mA current output signal that has a linear relationship with the liquid level pressure of the measured medium (liquid).

Features:

Compact size, high cost performance, high stability, and high sensitivity

0～-0.1MPa to 0～250MPa

Strain-gauge sensor  Diffused silicon sensor  Ceramic piezoresistive sensor optional

Stainless steel construction

Multiple range options for convenient user adjustment

Optional zero/span adjustable version

Pressure types: gauge, absolute, and vacuum

Accuracy: 1.0 class, 0.5 class, 0.25 class, 0.1 class

Optional compact integrated LCD display and indicator with switch output

Laser marking can be applied, ensuring product traceability 

Applications: 

Hydraulic and pneumatic control systems

Level measurement and control

Petrochemical, environmental protection, and air compression

Power station operation inspection and locomotive braking systems

Thermal power units

Light industry, machinery, and metallurgy

Building automation and constant-pressure water supply

Other automatic control and detection systems

Industrial process measurement and control

Laboratory pressure calibration 

Technical Parameters:

Measured medium Various liquids, gases, or steam compatible with 304/316 stainless steel

Measuring range Gauge pressure 0～0.01MPa to 0～250MPa Absolute pressure 0～0.1MPa to 0～250MPa Vacuum 0～-0.1MPa

Overload pressure 2 times full scale or 300MPa(whichever is lower)

Output signal 4～20mADC(two-wire) 0～10VDC, 0～5VDC, l～5VDC, 1-10VDC(three-wire)

Supply voltage 9～36VDC(two-wire), 24±5VDC(three-wire)

Medium temperature -30～+85℃

Ambient temperature -20～+85℃

Storage temperature -40～+90℃

Relative humidity ≤ 95％(40℃)

Rise time ≤5 ms to reach 90％FS

Accuracy 1.0 class, 0.5 class, 0.25 class (combined error including nonlinearity, repeatability, and hysteresis)

Zero adjustment ±8％ of output span

Span adjustment ±20％ of output span

Temperature drift ≤±0.05％FS／℃(temperature range -20～85℃, including the temperature effects on zero and span)

Temperature compensation range 0～70℃

Stability Typical: ±0.1％FS／year Maximum: ±0.2％FS／year

Wetted-part material 316 stainless steel/304 stainless steel

Housing material 304 or 316 stainless steel

Installation method Threaded installation

Pressure connection M20×1.5, M12×l, Gl／4, Gl／2 male threads, etc.

Electrical connection Four-core shielded cable (protection rating IP65) aviation plug DIN connector