Digital Pressure Transmitter for accurate pressure measurement in industrial processes. Designed for high reliability, digital precision, and long-term performance in demanding environments.
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Imported high precision and high stability pressure sensitive chips are selected for diffused silicon pressure transmitter. Sensitive chips are fabricated by advanced micro-mechanical etching process, which forms Wheatstone bridge by diffusing four high-precision resistors with temperature compensation on silicon wafers. Because of piezoresistive effect, there are some changes on the resistance values of the four bridge arm resistance, so as to make the bridge unbalanced, and then the sensor outputs an electric signal corresponding to the change of pressure. The output electric signal is compensated by amplification and non-linear correction circuit, which generates voltage and current signals which correspond linearly to the input pressure.
Features
Applications
| Output | (4~20)mA;(1~5)V;(0~10)V;(0~5)V;RS485 |
|---|---|
| Accuracy | 0.2%、0.25%、0.5% |
| Measurement range | -0.1…0…60Mpa |
| Pressure type | Gauge pressure, adiabatic pressure and sealed pressure |
| Working temperature | -20℃~85℃ |
| Zero-point temperature drift | ±0.3%FS/10℃ |
| Sensitivity temperature drift | ±0.3%FS/10℃ |
| Response time | RS485 output≤100ms（up to 90％FS）; Current and Voltage output≤10ms（up to 90％FS）. |
| Insulation | 20MΩ/250VDC |
| Ingress protection | IP65 |
| Load Resistance | (U-9V)/0.02A |
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