Pressure Sensors PC40
Product Overview
PC40 piezoresistive silicon pressure sensor is the core
component for the manufacture of pressure sensors and
pressure transmitters. As high-performance pressure sensitive
component, PC40 can be easily amplified and assembled into
the pressure transmitters with standard signal output.
PC40 packages diffused silicon pressure sensitive die to
316L stainless steel housing. External pressure is transmitted
to pressure sensitive die through stainless steel diaphragm
and internally sealed silicon oil. Pressure sensitive die does
not directly contact with measured medium, forming all solid
structure of pressure measurement. So the product can be
applied to a variety of occasions, including harsh corrosive
medium environment.
PC40 uses O-ring for pressure seal, which is easy to
install.The company can also undertake special customization
based on the needs of users, such as pressure sensors of all
welded structure, wide temperature compensation, high
reliability, anti-shock and anti-vibration sensors, especially for
national defense weapons and equipment.
Features
■ Constant current excitation
■ Imported TDK pressure die
■ Wide temperature compensation
■ Compensation board with protection against moisture
■ Φ19mm standard OEM
■ All 316L material
■ High performance, all solid, high reliability
■ 18 months warranty period
Uses and Industries
■ Process control systems
■ Pressure calibration instruments
■ Refrigeration equipment and
HVAC control
■ Hydraulic systems and valves
■ Level measurement
■ Biomedical instruments
■ Ships and navigation
■ Aircraft and avionics systems
■ Weaponry and Equipment
Product Parameters
Electrical performance parameters | |
Pressure Range | 0 ~ 40kPa... 16MPa |
Pressure reference | Gauge pressure, Absolute pressure, Sealed gauge pressure |
Excitation | Recommended 1.5mA |
Input impedance | Constant current: 2kΩ ~ 6kΩ |
Electrical connection | Silicon soft wire |
Compensation temp. | 0° C ~ 60° C (≤70kPa) -10 ° C ~ 70 ° C (other ranges) |
Operating temp. | -40 ° C ~ 120 ° C |
Storage temp. | -40 ° C ~ 120 ° C |
Insulation resistance | ≥ 200 m Ω / 250 VDC |
Response time | ≤1ms (up to 90%FS) |
Measured medium | All the liquids and gases compatible with 316L |
Mechanical vibration | 20g (20~5000HZ) |
Shock | 100g /10ms |
Durability | 1×106(pressure cycles) |
Structural performance parameters | |
Diaphragm material | 316L |
Housing material | 316L |
Oil filling | Silicone oil |
Sealing ring | NBR or fluorine rubber |
Basic parameters | ||||||
Items | Condition | Min | Nominal | Max | Unit | Notes |
Nonlinearity | 0.2 | 0.5 | %FS | Note (1) | ||
Hysteresis | 0.03 | 0.05 | %FS | |||
Repeatability | 0.03 | 0.05 | %FS | |||
Zero output | -2 | ±1 | 2 | mV | ||
Full span output | 1.5 mA | 60 | 90 | 150 | mV | Note (2) |
Zero temp. coefficient | 1 | 1.5 | %FS | Note (3) | ||
Sensitivity temp. coefficient | 1 | 1.5 | %FS | Note (3) | ||
Thermal hysteresis | 0.075 | 0.1 | %FS | Note (4) | ||
Long-term stability | - | 0.2 | 0.3 | %FS/ year |
Production process
Testing Equipment
Certificate
Company profile
Nanjing Wotian Technology Co., Ltd. was established in 2005. It is an outstanding top sensor manufacturing 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 3 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.