High-precision single crystal silicon pressure transmitter-PN30C

- Scope of use: liquid, gas and steam.
- Basic error: ± 0.075%, 0.1%, 0.2%.
- Quantity range: See range table
- End-base consistency error: ± 0.1%, 0.2%, 0.3%. Repeatability error: 0.1%, 0.2%, 0.3%.
- return difference: 0.1%, 0.2%, 0.3%.
- Stability: within the range of measurement, within one year, the basic error is not exceeded.
- Anti-interference characteristics: 1 ~ 100KHz frequency conversion interference signal with peak value of 1 ~ 380VAC is added to the power supply and shell, and the output variation of 4 ~ 20mA is less than ± 0.2%.
- Temperature influence: for DP and GP class, range code 4 ~ 8, error < ± 0.15/10 ℃ , maximum range limit; For other types and other ranges, the error is doubled.
- Constant current performance: variation < 0.075%.
- Insulation performance: Power resistance to the ground >400M.
- Response time: When powered up, the response time is less than 2 seconds. Mental acuity: lower limit and range change <
0.01%.
- Power supply voltage change: lower limit and range change < 0.02%.
- Steady-state variation: the power supply is interrupted for a short time, and the variation is < 0.02%. Over-standard range: lower limit and range change < 0.05%.
- Static pressure error: DP class, for 14MPa, the change of lower limit is < ± 0.3%; For HP class, for 32MPa, the change of lower limit value was < ± 0.5%.
- Influence of external magnetic field: in a magnetic field of 400A/m(root mean square), the variation is less than 0.05%.
- Mechanical vibration: vibration frequency: 50Hz, full amplitude: 0.2mm, lasting 2 hours of vibration, residual lower limit and range change < 0.075%.
u Installation position effect: when the sensor center measuring diaphragm is not vertical, there may be a zero position system
error of not more than 0.24kPa, but this error can be eliminated by adjusting the zero pressure fine tuning, and it has no effect on the range.
- Guide connection: the connecting hole on the pressure chamber is 1/4-18NPT, and the connecting hole on the pressure lead joint is 1/2-14NPT. The center distance can be changed by adjusting the connecting head.
- Electrical connection: The transmitter housing has two M20 × 1.5 screw holes for connecting the cable conduit. The housing is provided with a terminal and a test gasket, which can be fixed on the test gasket if it is connected with the communicator.
- Volume absorption: < 0.16C ㎡