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4-20mA HART Differential Digital Hydraulic Pressure Air Sensor
Product feature of the pressure transmitter
1 Adoption of microprocessor enhances its flexibility and function;
2 Have strong self-diagnostic capability;
3 Without mutual effect between zero adjustment and range adjustment;
4 Complete function of remote & local setting and calibration;
5 Two-wire systems, conforming to HART protocol and be capable of uninterrupted output with HART protocol terminal communication;
6 To compensate for temperature and static pressure by adopting digitized compensation technology;
7 Good stability, high accuracy, adjustable damping and good single-track overload ability;
8 Without mechanical drive parts, little maintenance work, strong resistance to vibration;
9 All general parts satisfy to the convenience of maintenance.
Pressure technical performance of the pressure transmitter
Using: liquid, gas or steam
Output signal: 4~20mA DC Output, overlay HART protocol digital signal (two-wire system)
Power supply: external power supply 24V DC, power supply range 12V~45V
Electric circuit board work at -40~85℃;
Sensing element work at -40~104℃
Storage temperature: -40~85℃
With digital display: -25~65℃ (normal operation)
-40~85℃ (with no damage)
Relative humidity: 0~95%
Overpressure limit: applying 2~5 times of maximum range pressure will bring no damage to transmitter.
Volume variation: be less than 4px3
Damping: time constant is adjustable within 0.2~32.0s.
Starting time: 3s, preheating is unnecessary.