Contact Us
Xi'an Camon Automatic Instrument Co.,Ltd
Address:1803Rm,buliding C, No.18, Dianzi First Road, Yanta District Xi'an China
Tel:+86-029-88243812
Fax:+86-029-88241170
Email:info@camoner.com
Post Code:710065
Bracket Installation Absolute Pressure Transmitter (DAP)
Bracket Installation Absolute Pressure Transmitter (DAP)
Chart 3 Differential Gauge Pressure Transmitter(DGP)/Differential Absolute Pressure Transmitter(DAP)
Differential pressure transmitter includes two functional units:
Main unit
Auxiliary unit
Main unit includes sensor and process connection, working principle as followed:
The sensor module uses whole welded technology, in which has a pressure sensor and a temperature sensor. The
pressure sensor is used for gauge or absolute pressure measurement. The temperature is taken as a reference for
temperature compensation. The measured end of pressure sensor is connected to working chamber of sensor capsule;
the negative end is connected to reference chamber of sensor capsule and open to air. In such way, the pressure
difference is transmitted to silicon die of pressure sensor, which makes the resistor of sensor die change. So the
detection system outputs different voltage. The output voltage is in proportion to the pressure variation, and then
it is transmitted to standard output by adapter and amplifier.
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