Nanjing Wotian Technology Co., Ltd.

Pressure sensor manufacturing for 17 years.

Keywords: Nanjing WotianPressure Sensor FactoryMonocrystalline Silicon Differential Pressure SensorLevel TransmitterPressure TransmitterPressure Sensor

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  • PCM401 Flameproof Pressure Transmitter

PCM401 Flameproof Pressure Transmitter


■ Diffused piezoresistive silicon pressure sensor

■ Strong and well-sealed aluminum alloy junction box, convenient for outdoor installation and use

■ For gas, liquid and steam pressure measurement

■ Provide low, medium and high pressure ranges

■ LCD option

■ Isolation and explosion-proof


■ Industrial site control

■ Coal mine

■ Oilfield

■ Heavy Industry

■ Chemicals

■ Gas network

■ Water supply network

China flameproof pressure transmitter,Wotian flameproof pressure transmitter,Pressure transmitter manufacturer,Diffused piezoresistive silicon pressure transmitter,LCD flameproof pressure transmitter

China Wotian factory flameproof pressure transmitter adopting high-performance piezoresistive silicon oil-filled pressure sensor, able to directly connected with computer interface card, control instruments, intelligent meters or PLC, widely used in the industrial process control, petroleum fields

Product Parameters

Performance   parameters

Pressure   range


Pressure   reference

Gauge   pressure, Absolute pressure, Sealed gauge pressure

Supply   & output

4~20mA (18~36V)

4~20mA   with display (12~36V)

1~5V, 0~5V,   0.5~4.5V, 0~10V (12~32V)

Operating   temp.


Medium   temp.


Storage   temp.


Zero temp.   coefficient

±1.5%FS (@-20~85)

Span temp.   coefficient

±1.5%FS (@-20~85)



Mechanical   vibration

20g (20~5000HZ)


100g (11ms)





Response   time

1ms (Up to 90%FS)

Long term   stability







Low copper   aluminum alloy for housing; 316L for isolation diaphragm

Medium   compatibility

All media   compatible with stainless steel 316L

Production process

PCM401 Flameproof Pressure Transmitter


Company profile


Company advantage

Mass production

We have one production center in Nanjing and one production center in Anshan with 20,000㎡plant and 170 units of production equipments. The main annual capacity of sensors is about 2,000,000 pieces.

Imported equipments

We imported 20 sets of pressure controller and 150 units of testing ovens to our production line.

Informatization management

We have the information management system of CRM, PLM, ERP, MES and DINGDING etc.

Comprehensive testing

We have our own lab and testing equipment such as lightning stroke, surging, static electricity, vibration, high-low temperature impact test and helium mass-spectrum leak detection.