Pусский 
Multivariable Differential Pressure Sensor PC90M
Products overview
The PC90M multivariable differential pressure sensor is a differential pressure sensor with overload pressure protection. The differential pressure-sensitive core uses an imported high-stability single-crystal silicon differential chip from Germany. It is packaged using a fully welded sealed structure and is filled with silicone oil under high vacuum. Measurement diaphragms of different materials not only isolate the measured medium and the differential pressure chip but also enable the sensor to reliably measure the pressure difference signal of various strongly corrosive media over a long period. The differential pressure sensor can convert the measured pressure difference signal into a millivolt signal linearly proportional to it through external excitation.
Features
■Optional imported high stability monocrystalline silicon differential pressure die
■High precision and good stability
■Static pressure error within ± 0.1% FS/10MPa
■Patented Dual Overload Protection Diaphragm Design
■Unidirectional overvoltage limit can reach 40MPa
■Constant stress excitation
■316L stainless steel fully welded integrated structure
■Positive and negative pressure symmetry, no O-ring inside
■Small splint structure
Application
■ Core components of differential pressure transmitter
■ Core components of differential pressure flow transmitter
Product Parameters
Performance parameters | |
Power supply | 5V DC |
Operation temperature | -40～85℃ |
Storage temperature | -50～125℃ |
Output signal voltage | 60～140mV |
Zero temperature drift | ±0.05%FS/℃ |
Temperature hysteresis | ±0.1%FS(10kPa＜range≤1000kPa) |
±0.5%FS(range≤10kPa) | |
Pressure hysteresis | ±0.025%FS |
Long-term Drift | ±0.05%FS/year |
Nonlinear | ±0.5%FS(10kPa＜range≤1000kPa) |
±1.5%FS(range≤10kPa) | |
Static pressure effect | ±0.15%FS/10MPa |
Diaphragm material | 316L |
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.
