Pусский 
High Performance Pressure Sensor P19
Product overview
P19 High Performance Pressure Sensor is the core component for producing pressure sensors and pressure transmitters; as a kind of pressure sensitive elements with high performance, it can be conveniently processed through amplifying, and assembled into the transmitter with the standard signal output.
P19 High Performance Pressure Sensor packages highly reliable pressure die into 316L stainless steel housing; the external pressure is transmitted to the sensitive die through the stainless steel diaphragm and internally sealed silicon oil; the pressure die does not directly contact with the measured medium, so as to form all solid structure of pressure measurement, so this product can be applied to a variety of occasions, including harsh corrosive medium environment.
P19 pressure sensor adopts O-ring for pressure sealing, easy to install.
The company can also undertake special customization according to user needs, such as pressure sensors with fully welded structure, wide temperature compensation, high reliability, strong impact resistance, and vibration resistance, which are more suitable for replacing imported products.
Equivalent circuit
4 wires
Features
■With constant current excitation
■Imported highly reliable NOVA pressure die
■Wide temperature compensation
■Ceramic compensation board
■φ19mm standard OEM
■All 316L material
■High performance, all solid, high reliability
■18 months warranty period
Applications 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
Product Parameters
Electrical performance parameters | |||
Pressure range | 0～7kPa…70MPa | ||
Pressure reference | Gauge pressure Absolute pressure or Sealed gauge pressure | ||
Excitation | 1.5mA recommended for constant current | ||
Input impedance | 3kΩ～8kΩ | ||
Electrical connection | Silica gel flexible wire | ||
Compensated temp. | Constant current: 0℃～70℃ (≤35kPa), -10℃～80℃ (other ranges) | ||
Operating temp. | -40℃～125℃ | ||
Storage temp. | -40℃～125℃ | ||
Insulation resistance | ≥200MΩ/250VDC | ||
Response time | ≤1Ms (up to 90%FS) | ||
Measurement medium | All the liquids and gases compatible with 316L | ||
Mechanical vibration | 20g (20～5000HZ) | ||
Shock | 100g (10ms) | ||
Service life | 1×106(cycles) | ||
Structural performance parameters | |||
Diaphragm material | 316L | ||
Housing material | 316L | ||
Perfusion liquid | Silicon oil | ||
Sealing ring | Fluorine rubber | ||
Basic parameters | ||||||||
Item | Condition | Min | Typical | Max | Unit | Note | ||
Nonlinearity | -0.2 | ±0.15 | 0.2 | %FS | Note ⑴ | |||
Hysteresis | -0.05 | ±0.03 | 0.05 | %FS | ||||
Repeatability | -0.05 | ±0.03 | 0.05 | %FS | ||||
Zero output | -2 | ±1 | 2 | mV | ||||
Full span output | 1.5mA | 50 | mV | |||||
Zero temp. coefficient | ≤35kPa Others | -1.5 -1 | ±1.2 ±0.75 | 1.5 1 | %FS | Note ⑵ | ||
Sensitivity temp. coefficient | -1 | ±0.75 | 1 | %FS | Note ⑵ | |||
Thermal hysteresis | -0.075 | ±0.05 | 0.075 | %FS | Note ⑶ | |||
Long-term stability | -0.2 | ±0.1 | 0.2 | %FS/year | ||||
Note:
⑴ Calculate according to BFSL least square method.
⑵ Range≤35kPa, compensation temperature range 0 ℃~70 ℃, other compensation temperature ranges -10 ℃~80 ℃, reference 35 ℃.
⑶ After passing high and low temperature, return to the reference temperature.
Production process
Testing Equipment
Certificate
Company profile
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.
