Instruction Manual

DVC6000 SIS
September 2013
5-2
Calibration Overview
When a DVC6000 SIS digital valve controller is
ordered as part of a control valve assembly, the
factory mounts the digital valve controller on the
actuator and connects the necessary tubing, then sets
up and calibrates the controller.
For digital valve controllers that are ordered
separately, recalibration of the analog input or
pressure sensors generally is unnecessary. However,
after mounting on an actuator, perform the initial setup
(either auto or manual), then calibrate travel by
selecting Calibrate, Travel Calibration, and Auto
Calibration from the Configure menu. For more
detailed calibration information, refer to the following
calibration procedures, available from the Calibrate
menu:
Travel Calibration
 Auto Calibration —This procedure automatically
calibrates the travel. The calibration procedure uses
the valve and actuator stops as the 0% and 100%
calibration points.
 Manual Calibration —This procedure permits
manual calibration of the travel. This calibration
procedure allows you to determine the 0% and 100%
calibration points and obtain the optimum linearity on a
sliding-stem valve.
Sensor Calibration
 Pressure Sensors—This procedure permits
calibrating the three pressure sensors. Normally the
sensors are calibrated at the factory and should not
need calibration.
 Travel Sensor—This procedure permits
calibrating the travel sensor. Normally the travel
sensor is calibrated at the factory. Calibrating the
travel sensor should only be necessary if the travel
sensor is replaced.
 Analog Input—This procedure permits
calibrating the analog input sensor. Normally the
sensor is calibrated at the factory and should not need
calibration.
Note
Analog Input is only available when
the DVC6000 SIS is operating in
Point-to-Point mode with 4-20 mA or
0-20 mA current.
Relay Adjust—This procedure permits adjustment of
the pneumatic relay.
Restore Factory Settings—This procedure permits
you to restore the calibration settings back to the
factory settings.
PST Calibration—This procedure permits you to run
the PST calibration procedure.
To display the calibrate menu, from the Online menu,
select Configure and Calibrate.
Note
The Instrument Mode must be Out Of
Service and the Protection set to None
before the instrument can be calibrated.
If you are operating in burst mode, we
recommend that you disable burst before
continuing calibration. Once calibration is
complete, burst mode may then be turned
back on.
Note
In the event of a power failure the
DVC6000 SIS automatically restores
the device to In Service upon
restoration of power. This is to provide
greater availability of the safety
function.
If power is inadvertently interrupted
while performing set up or
maintenance, you may need to return
the DVC6000 SIS to out of service if
the interrupted task requires that mode
of operation.
WARNING
During calibration, the valve may
move. To avoid personal injury and
property damage caused by the
release of process fluid or pressure,
isolate the valve from the process and
equalize pressure on both sides of the
valve or bleed off the process fluid.
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