Instruction Manual Supplement
D104490X012
DVC6200 Digital Valve Controller
January 2020
4
2.2gWhen prompted to run an Auto Travel Calibration select
No
.
2.3 Place the instrument In Service and close the tag. Then disconnect the digital valve controller.
3. Manually Replace Positioner
WARNING
Refer to the Installation Warning on page 2.
3.1 Disconnect any operating lines that provide air pressure, electric power, or a control signal to the actuator. Be sure
the actuator cannot suddenly open or close the valve. Remember to note where each line goes for reassembly.
3.2 Confirm the valve assembly is safely locked in position. Do not proceed if the valve assembly has not been safely
locked in position.
3.3 Carefully remove the existing positioner without disturbing the mechanism locking the valve in position
.
3.4 Mount the replacement digital valve controller by following the mounting instructions for sliding-stem valve
assemblies in the DVC6200 Quick Start Guide (
.
CAUTION
Valve movement may occur if air is supplied to the digital valve controller during calibration. The Single Point Calibration
process cannot be started if air is supplied to the instrument.
3.5 Attach pneumatic and electrical operating lines to the replacement digital valve controller but
Do Not Turn On Air
Supply
.
D
Measure and record the valve assembly’s Observed Travel (%). Observed Travel is the current position of the
valve as a percentage of the actual travel.
4. Run Single Point Calibration
4.1 In ValveLink software, connect to the replacement digital valve controller. Open the tag for your replacement
digital valve controller.
4.2 Initiate
Single Point
from the
Calibration
menu. Set the device Out of Service if prompted.
4.3 Read the
Start Screen
and confirm you have completed the required initial steps for Single Point Calibration. Click
Next
if you have completed the required steps listed.
4.4 Review the travel configuration information pre-populated by Setup Wizard and/or enter the correct values in the
blanks on the
Configuration Screen
. Click
Next
when all the values are entered correctly.
4.5 Review the tuning information pre-populated by Setup Wizard and/or enter the correct values in the blanks on the
Tuning Screen
. Click
Next
when all the values are entered correctly.
4.6 Read the
Warning Screen
(figure 1) that describes how to adjust the travel sensor. Click
OK
when finished reading
the screen.
