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Beijing Gallop Technology Co.,Ltd
Add:Room410 Tower C, Jiahua Buiding NO.9 Shangdi 3 Street Haidian District, Beijing
Tel:+86-010-51269778
Fax:+86-010-62967939
Mobile:+86-13858586115
E-mail:13858586115@163.com

Pressure Transmitters

4-20mA Anti-explosion Pressure Sensor

4-20mA Anti-explosion Pressure Sensor

4-20mA anti-explosion pressure sensor transmitter low cost with high quality....
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4-20mA anti-explosion pressure sensor 


1.Working principle

The pressure sensor diffuses a wheatstone bridge on a single crystal silicon wafer, and the measured medium (gas or liquid) applies pressure to change the bridge wall resistance value (piezoresistive effect) to generate a differential voltage signal. This signal is converted to a standard analog or digital signal by a dedicated amplifier.

4-20mA anti-explosion pressure sensor 1


2.Product features

* Imported diffused silicon pressure sensitive components and advanced diaphragm isolation technology

* The amplifier circuit uses imported American BB integrated chip, wide voltage power supply

* Easy installation and anti-clogging

* Cut-off interference design, strong anti-interference ability, lightning protection

* Wiring reverse and overvoltage protection, current limiting protection

* High precision, good stability and fast response

* Suitable for indoor, pressure measurement of viscous liquids, intrinsically safe explosion-proof site


3.Main tecnical parameters 

Measuring medium: viscous liquid (no corrosion to stainless steel)

Integrated material: Diaphragm 316s stainless steel Process connection 304 stainless steel Housing die-cast aluminum

Pressure range: -100kPa~0~100MPa 

Pressure mode: gauge pressure, absolute pressure, negative pressure

Output signal: 4~20mA, 0~5VDC, 0~10VDC, 1~5VDC, RS485

Power supply voltage: 9-36VDC

Accuracy level: 0.1% FS, 0.25% FS

Medium temperature: -40~85°C

Ambient temperature: -40~85°C

Seismic performance: 25g (20...2000Hz)

Overload capability: 200%FS

Response frequency : ≤500Hz

Stability: ±0.1% FS/year

Temperature drift : ±0.01%FS/°C

Protection level : IP65

Explosion-proof grade: ExiaIICT6

Maximum power : Current type ≤0.02Us(W) Voltage type ≤0.008Us(W)


4.Product installation

a) Vertical installation less than 0.03MPa, so as not to affect the measurement accuracy;

b) During the installation process, use a wrench to tighten the transmitter from the hexagonal nut at the bottom of the transmitter to avoid directly rotating the upper part of the transmitter and causing the connection line to be

disconnected;









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    Beijing Gallop Technology Co.,Ltd
    Add:Room410 Tower C, Jiahua Buiding NO.9 Shangdi 3 Street Haidian District, Beijing
    Tel:+86-010-51269778
    Fax:+86-010-62967939
    Mobile:+86-13858586115
    E-mail:13858586115@163.com
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