Instruction Manual
D103785X012
Calibration
June 2017
49
Figure 4‐3. Travel Indicator Assembly Starting Position; Counterclockwise or Clockwise
STARTING POSITION OF THE TRAVEL INDICATOR ASSEMBLY IF
INCREASING PRESSURE FROM OUTPUT A DRIVES THE INDICATOR
CLOCKWISE. THE POTENTIOMETER SHAFT WILL ROTATE
COUNTERCLOCKWISE AS VIEWED FROM THE BACK OF THE
INSTRUMENT.
STARTING POSITION OF THE TRAVEL INDICATOR ASSEMBLY
IF INCREASING PRESSURE FROM OUTPUT A DRIVES THE
INDICATOR COUNTERCLOCKWISE. THE POTENTIOMETER
SHAFT WILL ROTATE CLOCKWISE AS VIEWED FROM THE
BACK OF THE INSTRUMENT.
ACTUATOR SHAFT MOVEMENT
ACTUATOR SHAFT MOVEMENT
DVC6035 FEEDBACK
ARM MOVEMENT
DVC6035 FEEDBACK
ARM MOVEMENT
Note
In the next step, be sure the feedback arm surface remains flush with the end of the travel sensor shaft.
7. While observing the travel sensor counts, tighten the screw that secures the feedback arm 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. Remove the alignment pin and store it in the instrument housing.
10. Install the remote feedback unit on the actuator
.
DVC6025 Remote Feedback Unit
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.
and the arm assembly (key 91). Remove the mounting bracket (key 74) from the back of the feedback unit. Hold
the arm assembly (key 91) so that the arm assembly points toward the terminal box and the arm is parallel to the
back of the housing, as shown in figure 4‐5.
