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Products Description
Product Definition
The Nexisense P20 series pressure transmitter is a high-performance sensing device specifically designed for measuring pressure in refrigeration and air conditioning systems. Its design meets industry standards, ensuring high reliability and accuracy under various working conditions.
Working Principle
The P20 series pressure transmitter operates based on the principle of ceramic piezoresistive sensors, which convert changes in external pressure into an electrical signal output. The device's ASIC conditioning circuit performs nonlinear correction and temperature compensation across the entire operating temperature range, thereby enhancing measurement accuracy and stability.
Structural Analysis
The structure of the P20 series pressure transmitter is compact and primarily consists of the following components:
Sensor Chip: Utilizes an ultra-thin ceramic piezoresistive sensor with excellent sensitivity and corrosion resistance.
Conditioning Circuit: Fully self-designed ASIC circuit responsible for signal processing and correction.
Housing: Made of materials with an IP65 protection rating, ensuring normal operation in harsh environments.
Connection Interface: Simple electrical connection design for easy installation and maintenance.
Measurement Method
The P20 series pressure transmitter uses a voltage output method, with an output voltage range of 0.5-4.5 VDC, suitable for various load conditions. Its measurement range includes -1 to 60 bar, meeting different application requirements.
Product Parameters
| Parameter | Specification |
|---|---|
| Measuring Range | -1 bar to 60 bar |
| Overload Pressure | 2-5 times rated pressure |
| Measurement Accuracy | ±1%FS@(-20℃...+85℃) |
| Service Temperature | -40℃...+125℃ |
| Operating Temperature | -40℃...+150℃ |
| Zero Temperature Coefficient | ±0.03%FS/℃ (typical) |
| Sensitivity Temperature Coefficient | ±0.03%FS/℃ (typical) |
| Supply Voltage | 4.5-5.5 VDC |
| Output Voltage | 0.5-4.5 VDC (typical) |
| Load | Voltage (3-wire): ≥10k |
| Current Consumption | Voltage (3-wire): ≤10mA |
| Overvoltage Protection | 16 VDC |
| Reverse Voltage | -14 VDC |
| Short Circuit Protection | Yes |
| Protection Class | IP65 |
| Drop Height | 1.5m |
| Weight | About 30g (without cables) |
| Response Time | ≤2ms |
| EMC (512MHz to 1GHz) | 50 V/m |
| EMC (1MHz to 512MHz) | 100 V/m |
| ESD (15 kV) | CDF-AEC-Q100-002 |
Application Fields
The Nexisense P20 series pressure transmitter is widely used in the refrigeration, air conditioning, and compressor industries, suitable for various industrial and commercial environments. Its high performance and reliability make it the preferred device in the industry.
Conclusion
The Nexisense P20 series pressure transmitter, with its advanced design and outstanding performance, has become an indispensable tool for pressure measurement in the refrigeration and air conditioning industry. Its high sensitivity, corrosion resistance, and excellent cost-performance ratio make it excel in various application scenarios. Choose the Nexisense P20 series pressure transmitter for an efficient and accurate pressure measurement solution that supports your business development.
