Nanjing Wotian Technology Co., Ltd.

Pressure sensor manufacturing for 15 years.

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

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  • TO-8 Piezoresistive Silicon Pressure Sensor
  • TO-8 Piezoresistive Silicon Pressure Sensor
  • TO-8 Piezoresistive Silicon Pressure Sensor
  • TO-8 Piezoresistive Silicon Pressure Sensor
  • TO-8 Piezoresistive Silicon Pressure Sensor

TO-8 Piezoresistive Silicon Pressure Sensor

Features

■ Small range

■ Constant current excitation

■ High reliability imported pressure chip

■ Temperature compensation

■ High performance, all solid state, high reliability

■ 18 months warranty 


Application

■ Industrial process control system

■ Pressure calibration instrument

■ Refrigeration and air conditioning systems

■ Gas pressure measurement

■ Biological medical devices

■ Pressure measuring instrument

                                                                                                                                    

 TO-8 silicon pressure sensor,China pressure sensor,wotian pressure sensor, small size pressure sensor

TO-8 encapsulation pressure sensor with oil filling has the low cost and small diameter. Nanjing Wotian Technology Co., Ltd is the Chinese manufacturer that produces the pressure sensors and transmitters. It produces 1,5 million pieces pressure sensors and transmitters to 70 countries per year.

Product Parameters

Electrical   performance index


Pressure   range

0250Pa…1MPa



Pressure   reference

Gauge   pressure |   Absolute pressure | Sealed gauge pressure



Excitation

1.5mA



The   input impedance

2kΩ5kΩ



Electrical   connections

Kovar alloy   pin



Compensation   temperature

050



Working   temperature

-2085



Storage   temperature

-2085



Insulation   resistance

≥200MΩ/250VDC 



The   response time

≤1ms (Up to 90%FS)



Measuring   the medium

Clean,   non-corrosive liquids and gases



Mechanical   vibration

20g(205000HZ)



Shock

100g(10ms)



Lifetime

10×106(cycles)


Structural   performance index


Housing   material

08F






 

Basic   parameter index


Item

Condition

Min

Typical

Max

Unit

Note



Nonlinear


-1.0

±0.5

1.0

%FS

Note



Hysteresis


-0.05

±0.03

0.05

%FS




Repeatability


-0.05

±0.03

0.05

%FS




Zero   output


-2

±1

2

mV




Span   output

250Pa

500Pa

1kPa   2kPa 5kPa

Other   ranges

 

20

10

20

30

 

 

35

20

45

 

 

 

50

35

70

150

 

mV




Zero   temp. coefficient


-2.0

±1.5

+2.0

%FS

Note



Span   temp. coefficient


-2.0

±1.5

2.0

%FS

Note



Thermal   hysteresis


-0.075

±0.05

0.075

%FS

Note



Long   term stability


-0.3

±0.2

0.3

%FS/

Year




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.