Nanjing Wotian Technology Co., Ltd.

Pressure sensor manufacturing for 20 years.

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  • Pressure Transmitter PCM401

Pressure Transmitter PCM401

Features

Diffused piezoresistive silicon pressure sensor

Solid 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

Applications

 Industrial site control

 Coal mine

 Oilfield & Gas network

 Heavy Industry

 Chemicals

 Water supply network




Product Parameters



Performance parameters

Pressure range

-0.1MPa0~0.01MPa100MPa


Pressure reference

Gauge pressure, Absolute pressure, Sealed gauge pressure


Operating temp.

-20~85


Medium temp.

-20~85


Storage temp.

-40~125


Zero temp. coefficient

±1.5%FS (@-20~85)


Span temp. coefficient

±1.5%FS (@-20~85)


Overpressure

150%FS~300%FS


Mechanical vibration

20g (20~5000HZ)


Shock

100g (11ms)


Accuracy

0.5


Insulation

100MΩ/250VDC


Response time

1ms (Up to 90%FS)


Long term stability

±0.2%FS/Year  


Protection

IP65


Ex-proof

ExdBT6


Material

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


Medium compatibility

All media compatible with stainless steel 316L




Structure


Type

J12: Flameproof housing

J13: Flameproof housing with display

Dimension

In mm

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Wiring method

(Current output)




 image.png

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Wiring method

(Voltage output)


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Flameproof parameters

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Safety barrier parameters should meet: C0≤35V, I0≤35mA

Transmitter internal parameters: C1=0.01uF, L1=0

The distribution parameters of the connecting cable between safety barrier and the transmitter should meet: Cp≤Co-Ci, Lp≤Lo-Li

Flameproof parameters (cont.)

 

Note:

Uo: Maximum open circuit voltage of safety barrier

Io: Maximum short circuit current of safety barrier

Co: Maximum allowable capacitance outside the safety barrier

Lo: Maximum allowable inductance outside the safety barrier 

Cp: Maximum allowable distributed capacitance of connecting cable

Lp: Maximum allowable distributed inductance of connecting cable

Ci: Maximum capacitance inside the transmitter

Li: Maximum inductance inside the transmitter

 

Pressure range selection

Pressure range code

Pressure reference

Pressure range

Overpressure

Burst pressure

Remark


10kG

G

0~10kPa

300FS

600FS



20kG

G

0~20kPa

300FS

600FS



35kG

G

0~35kPa

300FS

600FS



70kG

G

0~70kPa

300FS

600FS



100kG

G

0~100kPa

200FS

500FS



160kG

G

0~160kPa

200FS

500FS



250kG

G

0~250kPa

200FS

500FS



400kG

G

0~400kPa

200FS

500FS



600kG

G

0~600kPa

200FS

500FS



1MG

G

0~1MPa

200FS

500FS



100kA

A

0~100kPa

200FS

500FS



160kA

A

0~160kPa

200FS

500FS



250kA

A

0~250kPa

200FS

500FS



400kA

A

0~400kPa

200FS

500FS



600kA

A

0~600kPa

200FS

500FS



1MA

A

0~1MPa

200FS

500FS



1.6MS

S

0~1.6MPa

200FS

500FS



2.5MS

S

0~2.5MPa

200FS

500FS



6MS

S

0~6MPa

200FS

400FS



10MS

S

0~10MPa

200FS

400FS



16MS

S

0~16MPa

200FS

400FS



25MS

S

0~25MPa

150FS

400FS



40MS

S

0~40MPa

150FS

300FS



60MS

S

0~60MPa

150FS

300FS



100MS

S

0~100MPa

150FS

300FS



Note: G stands for gauge pressure, A, absolute pressure, S, sealed gauge pressure.


Production process

PCM401 Flameproof Pressure Transmitter


                                                         Testing Equipment


Φ23.5mm Silicon Pressure Sensor PCM320Φ23.5mm Silicon Pressure Sensor PCM320

Φ23.5mm Silicon Pressure Sensor PCM320Φ23.5mm Silicon Pressure Sensor PCM320

Certificate

PCM390 Compact structure Pressure Transmitter

Company profile

PCM580 Digital Pressure Gauge (Φ80mm)

Nanjing Wotian Technology Co., Ltd. was established in 2005. It is an outstanding top sensor mkanufacturing enterprise in Jiangning District. The company was rated as Nanjing Engineering Technology Research Center and Nanjing. Municipal Engineering Research Center, Nanjing Enterprise Technology Center, Nanjing Postdoctoral Innovation Demonstration Base; is the unit that formulated the national standards for "Silicon Piezoresistive Pressure Sensitive Chips" and "Silicone Pressure Sensors". It is the leading domestic manufacturer of pressure sensors, with core technology of diffused silicon pressure sensor pressure transmitter, level sensor and temperature sensor and existing staff 305. The annual production of pressure sensors is more than 2 million. The products have been exported to more than 70 countries and regions. Nanjing Wotian was awarded the honorary title of "Sensor Application Program Demonstration Enterprise" by the Ministry of Industry and Information Technology in 2019. "Creating value for customers" is the goal that enterprises always pursue. As leading manufacturer in the domestic pressure sensor industry, the company will revitalize China's pressure sensor business as its own responsibility, work diligently, step by step, strive to make pressure sensors better, and provide customers with cost-effective sensors.  Nanjing Wotian Technology Co., Ltd. has passed ISO9001-2015 quality management system certification and TS16949 certification for the automotive industry.



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.