Emerson Fisher FIELDVUE DVC6000f, Instruction Manual

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DVC6000f Digital Valve Controllers
December 2009 5-2
Calibration
When a DVC6000f 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 instrument. For remote-mounted digital
valve controllers, the DVC6005f base unit ships
separately from the control valve and does not include
tubing, fittings or wiring.
For digital valve controllers that are ordered
separately, recalibration of the pressure sensors
generally is unnecessary. However, after mounting on
an actuator, perform the initial setup, (either auto or
manual) then calibrate travel by selecting Auto
Calibration or Manual Calibration. For more detailed
calibration information, refer to the following calibration
procedures, available from the Calibration menu:
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 calibration procedure
allows you to manually determine the 0% and 100%
calibration points on the valve.
Relay—This procedure permits adjustment of the
pneumatic relay when switching from single-acting to
double-acting or back.
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.
Supply Pressure—This procedure permits
calibrating the supply pressure sensor. Normally this
sensor is calibrated at the factory and should not need
calibration.
Pressure A—This procedure permits calibrating
the Output A Sensor. Normally this sensor is
calibrated at the factory, and should not need
calibration.
Pressure B—This procedure permits calibrating
the Output B sensor. Normally this sensor is calibrated
at the factory, and should not need calibration.
Note
The Transducer Block Mode
must be set to Manual and the
Protection set to None before the
instrument can be calibrated.
Travel Calibration
There are two procedures available for calibrating
travel:
Auto Calibration
Manual Calibration
Note
Prior to Calibration, several
parameters need to be set up. Travel
mode needs to be selected in
TVL_PRESS_CNTL [41], and in Basic
Setup (BASIC_SETUP [42]) the
following parameters must be
configured: Actuator Style
(ACTUATOR_STYLE [42. 1]), Zero
Power Condition (ZERO_PWR_COND
[42.2], Feedback Connection
(FEEDBACK_CONN [42.4]), Relay Type
(RELAY_TYPE [42.5]), and Travel
Tuning Set (TVL_TUNING_SET [42.10]).
Autocal will automatically set Travel
Sensor Motion
(TRAVEL_SEN_MOTION [42.3]),
however, this will need to be selected
prior to Manual Calibration.
These parameter are set automatically
by Device Setup, with the exception of
Relay Type (RELAY_TYPE [42.5]).
Relay Type needs to be changed only
if relay B is used.
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