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limits as trim values (the lower range limit corresponds to the lower-point trim value, and the upper range limit corresponds
to the high-point trim value). In this case, you can input any value.
Execute the adjustment (Trim) command. After completed successfully, the PV value will change with the
executed trim point value.
2)Upper trim
The operation procedure of upper trim is the same as that of lower trim.
3) Factory reset
Select "Factory Reset", then a prompt will ask "Are you sure to restore factory settings of the sensor?" Press the
key or click
on the screen to execute the factory reset command. After completed successfully, the upper and
lower trim values will restore factory settings.
3.3.4 PROFIBUS PA communication
The calibrator supports PROFIBUS PA bus communication. It can set and calibrate the parameters of PROFIBUS PA
pressure transmitter (PA transmitter). Before conducting any operation to the PA transmitter, you shall understand relevant
terms of PROFIBUS PA protocol such as Physical Block, Transducer Block, Function Block, TARGET_MODE, AUTO,
OSS and Man. Before use, please refer to the user manual of transmitter.
Note: During communication with a PA transmitter, the calibrator acts as a master station all the time. To avoid damaging
the control system, you must separate the PA transmitter from the control system before connecting the calibrator to PA
transmitter.
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