Fisher Mounting Instructions: DVC6200 or DVC2000 Digital Valve Controller on Old NAMUR Rotary Actuators | Fisher Manuals & Guides

DVC6200 or DVC2000

Mounting Instructions

D103459X012
November 2010

Use these instructions to mount a Fisherr FIELDVUEt
DVC6200 or DVC2000 digital valve controller on old
NAMUR rotary actuators.

WARNING

Avoid personal injury or property
damage from sudden release of process
pressure or bursting of parts. Before
performing any maintenance operations:

D Always wear protective clothing

and eyewear.

D Do not remove the actuator from
the valve while the valve is still
pressurized.

D Disconnect any operating lines
providing air pressure, electric power, or
a control signal to the actuator. Be sure
the actuator cannot suddenly open or
close the control valve.

D Use bypass valves or completely
shut off the process to isolate the
control valve from process pressure.
Relieve process pressure from both
sides of the control valve.

D Vent the pneumatic actuator
loading pressure and relieve any
actuator spring precompression.

D Use lock-out procedures to be sure
that the above measures stay in effect
while you work on the equipment.

D Check with your process or safety
engineer for any additional measures
that must be taken to protect against
process media.

Refer to figure 2 and the parts list for mounting parts
identification. Refer to the DVC6200 or DVC2000
digital valve controller instruction manual for digital
valve controller parts identification. Refer to the
appropriate actuator instruction manual for actuator
installation,operation, maintenance, and parts
identification.

1. Isolate the control valve from the process line
pressure, and release pressure from both sides of the
valve body. Shut off all pressure lines to the actuator,
releasing all pressure from the actuator. Use lock-out
procedures to be sure that the above measures stay in
effect while you work on the equipment.

Digital Valve Controller on

Old NAMUR Rotary Actuators

2. Attach the coupler (key 3) to the actuator shaft using
the hex socket cap screw (key 4) and tighten.

3. Place the pointer (key 8) before attaching the
magnet assembly (key 6) to the coupler using the pan
head screws (key 7) and tighten. The magnet assembly
must be oriented per figure 1, so that the flats are
approximately as shown relative to the channel in the
instrument housing at the actuator mid-travel position.

4. Attach the digital valve controller to the mounting
bracket (key 2) using the hex head cap screws (key 5).
Allow for minor adjustments if needed.

5. Attach the mounting bracket (key 2) loosely to the
actuator using only two of the hex head cap screws
(key 1, select metric or inch fasteners, as appropriate
for actuator) on the same side of the bracket. Slide the
mounting plate (key 9) under the two hex head cap
screws and insert two remaining hex head cap screws.
Visually center the magnet assembly and digital valve
controller and tighten all fasteners.

6. Attach the travel indicator scale (key 10) to the
mounting plate (key 9) using plain washer (key 11) and
cap screws (key 12). Refer to figure 2.

7. Connect and calibrate the instrument as described
in the appropriate instruction manual.

For additional information concerning the mounting,
setup, calibration, and maintenance of the DVC6200 or
the DVC6000 digital valve controller refer to the
appropriate instruction manual.

Note

Neither Emerson, Emerson Process
Management, nor any of their affiliated
entities assumes responsibility for the
selection, use, or maintenance of any
product. Responsibility for the selection,
use, and maintenance of any product
remains with the purchaser and end
user.

www.Fisher.com

DVC6200 or DVC2000
Digital Valve Controller on
Old NAMUR Rotary Actuators

ORIENTATION
AT ONE TRAVEL
EXTREME

ORIENTATION
AT MID-TRAVEL
(FLATS PARALLEL
TO INSTRUMENT
HOUSING CHANNEL)

Mounting Instructions

D103459X012

November 2010

DVC6200

ORIENTATION
AT THE OTHER
TRAVEL EXTREME

DVC2000

Figure 1. Magnet Assembly Orientation

2