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enter the zeroing interface.
Ensure that the present measured value adequately approaches zero; otherwise, it may cause
zeroing to fail.
3) Current regulation
Adjust the proportion of current output of the transmitter, to make its AO value consistent with the
actually output loop current.
Provide regulation of the D/A zero (4mA) and D/A gain (20mA). You can press the screen to
acquire the present value, and press the key to perform regulation.
4) Sensor trim
Sensor trim is to adjust the PV process variable of the transmitter, generally including one or two trim
points (lower point and upper point). Some transmitters do not support the sensor trim operation (as
for whether the transmitter supports sensor trim, please refer to the user manual of transmitter).
Lower trim
Support setting the PV unit and trim point value. You can select internal or external pressurization
method. Press the key to enter the execution interface.
Note: External pressurization requires an external pressure module.
1) Internal pressurization: Select high-pressure and low-pressure modules, to automatically output
the pressure of the trim points. Wait for the pressure to stabilize and press the "Get" key to directly
acquire the value, or manually enter the trim values.
2) External pressurization: Manually control the pressure of transmitter through an external source.
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