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Product Introduction
ZRN302 type differential pressure transmitter using micromachined piezoresistive silicon sensor technology, all stainless steel structure design, small size, light weight and easy to install, good anti-vibration performance using SCM intelligent compensation, stable and reliable performance, the products in the external adjustment of zero and full scale suitable for differential pressure measurement of gases, liquids and low trace process range.
Product Usage
For a variety of gases, pressure measurement of liquids, the measurement used in petroleum, chemical, hydrological and other pipeline embankment differential pressure measuring water level difference of aircraft, tanks and other inside and outside the cabin differential pressure, wind pressure and altitude.
Technical Parameters:

| Measuring media | Liquid, gas, steam and other media compatible with 316L stainless steel |
| Pressure Type | Differential, gauge, absolute pressure, vacuum optional |
| Range | 0 ~ 0.5 KPa. 10 kpa. 2000 kpa Optional |
| Accuracy | ± 0.2%, ± 0.5% (non-linearity, hysteresis, repeatability combined degrees) |
| Zero temperature error | ± 0.015% FS / ℃ |
| Full scale temperature error | ± 0.015% FS / ℃ |
| Compensated temperature range | -40~+85 ℃ |
| Operating temperature range | -40~+85 ℃ |
| Storage temperature range | -45~+125 ℃ |
| Long-term stability | ± 0.2% FS / Year |
| Power supply | 15 ~ 36VDC |
| output signal | 4 ~ 20mA, 0 ~ 5VDC or 1 ~ 5VDC |
| Electrical connection | Connectors or direct outlet |
| Response time | ≤1 ms |
| Package housing | Stainless steel 1Cr18Ni9Ti |
| Sensor diaphragm | Stainless steel 316L |
| Pressure connection | 1 / 4NPT, M20 * 1.5, Φ6 gas nozzle joints or selected pagoda |
| Vibration | After 30 ~ 2000Hz vibration change ≤0.25% |
| Attack | After 100g, 10 ms impact change ≤0.25% |
| life | 1*107 Pressure cycle |
| For media | Liquid or gaseous materials compatible with the structure |