Submodule Maintenance; I/P Converter; Removing The I/P Converter - Fisher FIELDVUE DVC6200 Instruction Manual

Submodule Maintenance

The digital valve controller's module base contains the
following submodules: I/P converter, PWB assembly,
and pneumatic relay. If problems occur, these
submodules may be removed from the module base
and replaced with new submodules. After replacing a
submodule, the module base may be put back into
service.
CAUTION
Exercise care when performing
maintenance on the module base.
Reinstall the cover to protect the I/P
converter and gauges when servicing
other submodules.
In order to maintain accuracy
specifications, do not strike or drop
the I/P converter during submodule
maintenance.

I/P Converter

Refer to figure 8-2 for key number locations. The I/P
converter (key 41) is located on the front of the
module base.
Note
After I/P converter submodule
replacement, calibrate the digital valve
controller to maintain accuracy
specifications.
September 2010
Maintenance and Troubleshooting
O-RING LOCATED
IN I/P CONVERTER
OUTPUT PORT
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Replacing the I/P Filter
A screen in the supply port beneath the I/P converter
serves as a secondary filter for the supply medium. To
replace this filter, perform the following procedure:
1. Remove the I/P converter (key 41) and shroud
(key 169) as described in the Removing the I/P
Converter procedure.
2. Remove the screen (key 231) from the supply port.
3. Install a new screen in the supply port as shown in
figure 7-2.
4. Inspect the O-ring (key 39) in the I/P output port. if
necessary, replace it.
5. Reinstall the I/P converter (key 41) and shroud
(key 169) as described in the Replacing the I/P
Converter procedure.

Removing the I/P Converter

1. Remove the front cover (key 43), if not already
removed.
2. Refer to figure 7-3. Using a 2.5 mm hex socket
wrench, remove the four socket-head screws (key 23)
that attach the shroud (key 169) and I/P converter
(key 41) to the module base (key 2).
3. Remove the shroud (key 169); then pull the I/P
converter (key 41) straight out of the module base
(key 2). Be careful not to damage the two electrical
leads that come out of the base of the I/P converter.
4. Ensure that the O-ring (key 39) and screen
(key 231) stay in the module base and do not come
out with the I/P converter (key 41).
SCREEN (FILTER)
LOCATED IN I/P
CONVERTER
SUPPLY PORT
Figure 7-2. I/P Filter Location
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