Replacing The Instrument; Replacing The Magnetic Feedback Assembly; Component Replacement - Emerson Fisher FIELDVUE DVC2000 Instruction Manual

TERMINAL BOARD SCREWS (3)
W8840
MAIN ELECTRONIC SCREWS (3)

Replacing the Instrument

To replace an instrument that has been previously
mounted to a control valve, perform the following basic
steps:
Instrument Removal
1. Make sure that the valve is isolated from the
process.
2. Remove the instrument cover (refer to figure 6-1).
3. Disconnect the field wiring from the terminal board.
4. Shut off the instrument air supply and disconnect
the tubing to the supply port.
5. Disconnect the tubing from the output port.
6. Remove the bolts connecting the DVC2000
housing to the mounting bracket.
Note
The magnet assembly may remain on
the valve stem (or shaft).
When replacing the instrument, be sure to follow the
mounting procedure outlined in Section 2. Once the
instrument is mounted, perform the Quick Setup
routine outlined in Section 3. If changes need to be
made to the default settings, use the Detailed Setup
routine to make the appropriate modifications.
July 2009
Maintenance and Troubleshooting
EMI SHIELD SCREWS (3)
Figure 6-1. FIELDVUE DVC2000 Exploded View
Replacing the Magnetic Feedback
Assembly
To remove the magnet assembly from the actuator
stem, perform the following basic steps.
1. Make sure that the valve is isolated from the
process.
2. Remove the instrument cover.
3. Disconnect the field wiring from the terminal board.
4. Shut off the instrument air supply.
5. Remove the DVC2000 from the actuator.
6. Remove the screws holding the magnet assembly
to the connector arm.
When replacing the instrument, be sure to follow the
mounting procedure outlined in Section 2. Once the
instrument is mounted, perform the Quick Setup
routine outlined in Section 3. If changes need to be
made to the default settings, use the Detailed Setup
routine to make the appropriate modifications.
Component Replacements
When replacing any of the components of the
DVC2000, the maintenance should be performed in an
instrument shop whenever possible. Make sure that
the electrical wiring and pneumatic tubing is
disconnected prior to disassembling the instrument.
COVER SCREWS (2)
6
6-3