Quick Start Guide
D103203X012
DVC2000 Digital Valve Controller
July 2017
21
Travel Calibration
WARNING
During calibration the valve will move full stroke. To avoid personal injury and property damage caused by the release of
pressure or process fluid, isolate the valve from the process and equalize pressure on both sides of the valve or bleed off the
process fluid.
Note
If optional limits switches are being used, power must be applied to the switch circuits throughout the automatic or manual
calibration routine. Failure to power the switches may result in incorrect switch orientation.
To manually calibrate the instrument or automatically calibrate the instrument without changing the tuning values,
the TRAVEL CALIBRATION routine is available. To access this procedure from the home screen, press the DOWN (B)
arrow key two times and then the RIGHT (") arrow key once. From there follow the prompts as illustrated in figure 18.
Figure 18. Travel Calibration
TRAVEL
CALIBRATION
"
"
"
A
"
A
FINDING
100%...
FINDING 0%... FINDING 50%...
MOVE VALVE TO
100% TRAVEL
FINDING 50%...
CALIBRATION
AUTOMATIC
VALVE WILL MOVE
PRESS FOR 3 SEC
CALIBRATION
COMPLETE
CALIBRATION
FAILED
SAVE & EXIT?
PRESS
"
MOVE VALVE TO
0% TRAVEL
AUTOMATIC
MANUAL
"
"
"
"
"
"
SAVE & EXIT?
EXIT W/O SAVING?
TRAVEL = 66.8%
14.6 MA 0.92 BAR
QUICK SETUP
Y
B
Y
B
AUTO
MANUAL
Note
If the valve is manually calibrated to travel less than the physical travel stops allow, manual tuning (page 22) may be required to
optimize the valve response.
Automatic calibration will provide status information as the procedure is running. Manual calibration will require you
to first adjust the input current to move the valve and then to press the RIGHT (") arrow key. After manual calibration
is complete, you will have the choice to save the calibration or exit the procedure without saving. If you exit without
saving, the last saved calibration data will be restored.
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