Nanjing Wotian Technology Co., Ltd.

Pressure sensor manufacturing for 20 years.

You are here: WT Home > Products > Pressure Sensor

  • Monocrystalline silicon pressure sensor P20

Monocrystalline silicon pressure sensor P20

Features
■ MEMS monocrystalline silicon pressure chip imported from Germany.
■ High precision, super overload resistance.
■ High performance, all solid, high reliability
■ All 316L material
■ Gauge pressure type can be used for negative pressure measurement.    


Applications

■ Provide OEM parts for industrial pressure transmitter manufacturers    





Product Parameters

Performance parameters

Excitation

5V constant voltage


Operating temp.

-4085


Storage temp.

-50125


Output

200300mV(@10MPa A)    

60140 mV (other ranges)


Zero temp. coefficient

±0.05%FS/


Temperature hysteresis

±0.1%FS(pressure range≥100kPa)


Pressure hysteresis

±0.05%FS


Long-term drift

±0.05%FS /year


Nonlinearity

±0.5%FS(pressure range≥100kPa)


Maximum overpressure

Refer to pressure range selection


Diaphragm material

316L, Hastelloy C


 

Structure and dimensions

In mm

Pressure range

Dimensional drawing

100kPa

 

 



P20 Monocrystalline silicon pressure sensor 


Electrical connection

Electrical schematic diagram

Wire color

Wiring definitions

image.png 

 Red

Excitation+ (IN+)

 Blue

Excitation- (IN-)

 Yellow

Output+ (OUT+)

 White

Output-(OUT-)

Green

Temperature +(Diode+)

Black

Temperature–(Diode-)

 

 

 

 

 

 

Pressure range selection

Pressure Code

Minimum Pressure

Pressure reference

Pressure range

Overpressure

100kG

25kPa

G

-100100kPa

1MPa

100kA

25kPa

A

0100kPa

1MPa

250kG

60kPa

G

-100250kPa

2MPa

250kA

60kPa

A

0250kPa

2MPa

1MG

250kPa

G

-0.11MPa

6MPa

3MG

0.8MPa

G

-0.13MPa

15MPa

10MA

1MPa

A

010MPa

20MPa

20MA

5MPa

A

020MPa

60MPa

40MA

10MPa

A

040MPa

80MPa

Note: G: Gauge pressure, A: Absolute pressure


P20 Monocrystalline silicon pressure sensor

Production process

P20 Monocrystalline silicon pressure sensor


                                                                            Testing Equipment


P20 Monocrystalline silicon pressure sensorP20 Monocrystalline silicon pressure sensor

P20 Monocrystalline silicon pressure sensorP20 Monocrystalline silicon pressure sensor




Certificate

P20 Monocrystalline silicon pressure sensor

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.