1.1. Reference accuracy 1.1.1. Digital and intelligent: ±0.1% calibration range 1.1.2. Analog, linear: ±0.2% check range 1.2. Stability 1.2.1. Digital, Smart: 6 months, ±0.1%URL 1.2.2. Analog, Linear: 6 months, ±0.2%URL 1.3. Influence of ambient temperature 1.3.1. Digital and intelligent zero error: ±0.2%URL/56℃ Overall error: ±(0.2%URL+0.18% check range) /56℃ 1.3.2. Analog, linear zero error: ±0.5%URL/56℃ Overall error: ±(0.5%URL+0.5% calibration range)/56℃ 1.4. Static pressure effect 1.4.1. Zero point: ±0.2%URL at 13790kPa for range 4 to 8; Other ranges are ±0.25%URL. The zero error can be corrected online by recalibrating. 1.4.2. Range: adjustable to ±0.25% output reading /6895kPa, for range 3, adjustable to ±0.5% output reading /6895kPa 1.5. Vibration influence In any axial direction, vibration influence at 200Hz is ±0.05%URL/g 1.6. Power impact is less than ±0.005% output range/volt.

1.7. Load effect: There is no load effect unless there is a change in the supply voltage. 1.8. Electromagnetic interference/radio frequency interference (EMI/RFI influence) from 20 to 1000MHz, when the field intensity reaches 30V/M, the output drift is less than ±0.1% range. 1.9. The zero drift affected by installation position is ± 0.25kpa at most. All zero drift can be corrected; There is no impact on the range. Measuring range: differential pressure: 0-1.3 ~ 6890KPa Static pressure: 4, 10, 14MPa 2.2. Zero and range 2.2.1. Digital and intelligent: the range and zero button of the machine can be adjusted, or the HART manipulator can be used for remote adjustment. 2.2.2. Analog, linear: range and zero point are continuously adjustable. 2.3. Zero-point positive and negative migration In zero-point negative migration, the lower limit of the range must be greater than or equal to -URL; For zero-point positive migration, the upper limit of the range must be less than or equal to +URL. Check range greater than or equal to small range. 2.4 output digital, intelligent: 4 ~ 20mA DC, the user can choose linear or square root output, digital process variables superimposed on the 4 ~ 20mA DC signal, available for the upper computer using HART protocol. Analog, linear: 4 ~ 20mA DC, linear with process pressure.

1151/3351DP

Differential pressure transmitter