Analog Input Calibration - Emerson Fisher FIELDVUE DVC6000 HW2 Instruction Manual

Instruction Manual
D103785X012
Note
In the next step, be sure the arm assembly outer surface remains flush with the end of the travel sensor shaft.
7. While observing the travel sensor counts, tighten the screw that secures the arm assembly to the travel sensor
shaft. Be sure the travel sensor counts remain within the tolerances listed in table 4‐2. Paint the screw to discourage
tampering with the connection.
8. Disconnect the Field Communicator and current source from the instrument.
9. Apply lubricant (key 63) to the pin portion of the arm assembly (key 91).
10. Replace the mounting bracket on the back of the instrument and reconnect the bias spring between the feedback
arm assembly and the arm assembly on the travel sensor shaft.
11. Install the remote feedback unit on the actuator.
Figure 4‐5. FIELDVUE DVC6025 Travel Sensor Arm/Housing Back Plane Alignment
ARM ASSEMBLY
ARM ASSEMBLY PIN
TRAVEL
SENSOR SHAFT
A7025

Analog Input Calibration

To calibrate the analog input sensor, connect a variable current source to the instrument LOOP+ and LOOP- terminals.
The current source should be capable of generating an output of 4 to 20 mA. Follow the prompts on the Field
Communicator display to calibrate the analog input sensor.
1. Set the current source to the target value shown on the display. The target value is the Input Range Low value. Press
OK.
2. The following message appears:
Use the Increase and Decrease
selections until the displayed
current matches the target.
Press OK when you have read this message.
BACK EDGE OF ARM
PARALLEL W/BACK
OF HOUSING
BACK OF HOUSING
Calibration
June 2017
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