This pressure transmitter uses high-precision, high - stability pressure sensor components from internationally renowned companies. Through a highly reliable amplification circuit and precise temperature compensation, it converts the pressure of the measured medium into standard electrical signals of 4–20mA DC , 0–5VDC , 0–10VDC , and 1–5VDC . High-quality sensors, sophisticated packaging technology , and meticulous assembly processes ensure the product's superior quality and optimal performance. This product offers various interface types and lead configurations to maximize customer satisfaction and is suitable for use with a wide range of measurement and control equipment.

Working principle

When a pressure signal is applied to the sensor, the pressure sensor converts the pressure signal into an electrical signal, which is then amplified by differential amplification and output amplifier, and finally converted into a 4-20mA standard current output signal that is linearly related to the liquid level and pressure of the measured medium (liquid) by V/A voltage and current.

Features:

Small size, high cost-performance ratio, high stability, and high sensitivity

0 to -0.1 MPa to 0 to 250 MPa

Strain gauge sensor   Diffused silicon sensor   Ceramic piezoresistive sensor optional

Stainless steel structure

Multiple measurement range options and convenient user calibration

Optional features include zero / full scale adjustment

Pressure type: gauge pressure, absolute pressure, vacuum

Accuracy : 1.0 , 0.5 , 0.25 , 0.1

A small, integrated LCD display and a meter with switch output can be selected.

Laser marking can be used to ensure product traceability .  

application:  

Hydraulic and pneumatic control systems

Liquid level measurement and control

Petrochemicals, environmental protection, air compression

Power station operation and inspection, locomotive braking system

thermal power unit

Light industry, machinery, metallurgy

Building automation and constant pressure water supply

Other automatic control and detection systems

Industrial process detection and control

Laboratory pressure calibration  

Technical parameters:

Measuring medium   Various liquids, gases or vapors compatible with 304/316 stainless steel

Measurement range   Gauge pressure : 0 ~ 0.01MPa to 0 ~ 250MPa; Absolute pressure : 0 ~ 0.1MPa to 0 ~ 250MPa ; Vacuum: 0 ~ -0.1MPa

Overload pressure: twice the full scale or 300 MPa ( whichever is smaller ) .

Output signals : 4-20mA DC ( two-wire ) , 0-10VDC , 0-5VDC , 1-5VDC , 1-10VDC ( three - wire ) .

Power supply voltage: 9 ～ 36VDC ( two-wire system ) , 24 ± 5VDC ( three-wire system )

Medium temperature -30 ～ +85 ℃

Ambient temperature -20 to +85 ℃

Storage temperature: -40℃ to +90 ℃

relative humidity   ≤ 95 % (40 ℃ )

Ascent Time   ≤ 5 milliseconds to achieve 90 % FS

allow   Confirm   Grades 1.0 , 0.5 , and 0.25 ( including combined errors such as nonlinearity, repeatability, and hysteresis ) .

Zero point adjustment   ± 8 % of the output range

Range adjustment   ± 20 % of the output range

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

Temperature compensation range: 0 ～ 70 ℃

stable   Certainly   sex   Typical: ± 0.1 % FS /year   Maximum: ± 0.2 % FS /year

Medium contact material: 316 stainless steel /304 stainless steel

Casing material: 304 or 316 stainless steel

Installation method   Threaded installation

Pressure connections include M20 × 1.5 , M12 × l , Gl / 4 , and Gl / 2 male threads, etc.

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