Instruction Manual
D103785X012
Calibration
June 2017
47
Supply Pressure Sensor
Note
Supply Pressure Sensor Calibration is not available for instrument level HC.
To calibrate the supply pressure sensor, connect an external reference gauge to the output side of the supply
regulator. The gauge should be capable of measuring maximum instrument supply pressure. Follow the prompts on
the Field Communicator display to calibrate the instrument's supply pressure sensor.
1. Select a) Zero Only, or b) Zero and Span (gauge required).
a. If Zero Only calibration is selected, adjust the supply pressure regulator to remove supply pressure from the
instrument. Press OK. Once calibration is complete, go to step 5.
b. If Zero and Span calibration is selected, adjust the supply pressure regulator to remove supply pressure from the
instrument. Press OK. Adjust the supply regulator to the maximum instrument supply pressure. Press OK.
Proceed with step 2.
2. The following message appears:
Use the Increase and Decrease
selections until the displayed
pressure matches the supply
pressure.
Press OK when you have read this message.
3. The value of the pressure appears on the display.
4. From the adjustment menu, select the direction and size of adjustment to the displayed value.
Selecting large, medium, and small adjustments causes changes of approximately 3.0 psi/0.207 bar/20.7 kPa, 0.30
psi/0.0207 bar/2.07 kPa, and 0.03 psi/0.00207 bar/0.207 kPa, respectively.
Adjust the displayed value until it matches the supply pressure, select Done and go to step 5.
5. Place the instrument In Service and verify that the displayed pressure matches the measured supply pressure.
Travel Sensor
The travel sensor is normally adjusted at the factory and should not require adjustment. However, if the travel sensor
has been replaced, adjust the travel sensor by performing the appropriate procedure. See the Maintenance section for
travel sensor assembly replacement procedures.
DVC6015 and DVC6035 Remote Feedback Units
WARNING
Failure to remove air pressure may cause personal injury or property damage from bursting parts.
1. Remove supply air and remove the instrument from the actuator.