Digital Pressure Transmitter With Hart Output
1. Introduction
ML2000W series diffusion silicon pressure transmitter adopts the advanced transducer as sensitive element. It applies shielding and eliminating process of new hit-resistant capacitance, RF, over current and strong voltage signal. The subsequent circuit has higher stability and capacity of resisting disturbance because the peripheral circuit layout and component selection are more reasonable than American TI (BB) company operational amplifier.
Gauge Pressure Transmitter / transducer (GP) is a pressure transmitter for Gauge pressure measurement. Gauge pressure transmitter can measure the pressure of liquid, gas or steam. And convert it into 4 ～ 20mA DC signal output. The GP pressure transmitter can communicate with the HART Communicator, through which it can be set and monitored. Gauge pressure refers to pipeline pressure. “Gauge pressure” starts from atmospheric. Gauge Pressure plus atmospheric is the absolute pressure.
 
2.Technical Parameter

• Accuracy: ±0.2% or ±0.1%
• Measuring Range: -0.1KPa~0~100KPa~40MPa (Max. 100MPa)
• Ambient Temperature: -20~85℃
• Medium Temperature: -20~90℃
• Storage Temperature: -40~85℃
• Relative Humidity: <95%
• Output: 4-20mA
• Power Supply: 24VDC or 12VDC
• Stability: Better than 0.1%FS Per Year
• Overload Limit: 150%~300%
• Upgrade Features:

①　Power supply non polar connection(Only analog circuit, 24VDC power supply)
②　Field or Outside lightning prevention design
 
3. Configuration