Fisher Mounting Instructions: DVC6200 or DVC2000 Digital Valve Controller on 657 and 667 Size 34-60 Actuators with Handwheel | Fisher Manuals & Guides

DVC6200 or DVC2000 Digital

Mounting Instructions

D103442X012
May 2010

Use these instructions to mount a FisherR FIELDVUEt
DVC6200 or DVC2000 digital valve controller on Fisher
657 and 667 size 34-60 actuators w/handwheel.

Size 34-60 Actuators with Handwheel

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,

gloves, 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 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.

Valve Controller on 657 and 667

2. Attach the connector arm (key 3) to the valve stem
by loosening the valve stem jam nuts and inserting the
connector arm between the travel indicator disk and
jam nuts. Ensure the connector arm is visually square
with the yoke legs and seated against the valve stem
and retighten the jam nuts.

3. Attach the extension arm (key 6) to the connector
arm using two pan head machine screws (key 4) but do
not tighten. See figure 2 for extension arm orientation.

4. Attach the magnet assembly (key 5) to the
extension arm with two pan head machine screws (key

4) but do not tighten (the magnet assembly can be
inverted 180_ without effect).

5. Attach the mounting bracket assembly (key 1) to the
yoke using the two socket head screws (key 2).

6. Push the cap screws and O-ring in the mounting
bracket groove and then attach the black plastic
alignment template to the mounting bracket by inserting
the two protruding posts into the mounting holes in the
bracket and simultaneously positioning the magnet
assembly so that it can slide into the channel in the
alignment template. The magnet assembly should be
fully in the alignment template channel so that the
extension arm is contacting the back of the alignment
template but not bending it. Tighten pan head machine
screws (key 4), attaching the extension arm to the
connector arm but do not yet tighten the pan head
machine screws attaching the magnet assembly.

7. For an air-to-extend actuator, slide the magnet
assembly (key 5) so that the bottom marking aligns with
the sensor index mark on the alignment template (see
figure 1). The magnet assembly’s top marking is used
for air-to-retract. The mounting bracket may require
vertical repositioning to get the magnet array in the
correct location. When the magnet assembly is properly
positioned, remove the alignment template and tighten
the two pan head machine screws (key 4).

8. Attach the digital valve controller to the mounting
bracket and tighten the three hex head cap screws
(key 1b).

9. Check the position of the magnet assembly (key 5)
in the channel of the digital valve controller housing and
ensure the feedback array is visually centered between
the channel walls and has adequate clearance with the
backside of the channel (approximately 3 mm).

www.Fisher.com

DVC6200 or DVC200 Digital
Valve Controller on 657 and 667
Size 34-60 Actuators with Handwheel

10. Connect and calibrate the digital valve controller as
described in the instruction manual or quick start guide.

For additional information concerning mounting,
setup, calibration or maintenance of the DVC6200
or DVC2000 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.

FIGURE SHOWS MAGNET
ASSEMBLY MARKING ALIGNED
WITH SENSOR INDEX MARK
FOR AIR-TO-EXTEND ACTUATOR

ASSEMBLY
MARKING

NOTE:
DURING THE COMPLETE STROKE OF THE ACTUATOR, AT ANY PARTICULAR
POSITION, THE DIGITAL VALVE CONTROLLER HALL SENSOR MUST REMAIN
WITHIN THE MARKING SHOWN ON THE MAGNET ASSEMBLY

GE43826

1a

Mounting Instructions

D103442X012

May 2010

Figure 1. Alignment Template

1b

GG03769

2

1c

4

3

6

VALVE STEM
JAM NUTS

5

6

MAGNET ASSEMBLY

Figure 2. Mounting Parts Identification

Fisher and FIELDVUE are marks owned by one of the companies in the Emerson Process Management business division of Emerson Electric Co.
Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are
the property of their respective owners.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they
are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or
applicability. All sales are governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the
designs or specifications of such products at any time without notice. Neither Emerson, Emerson Process Management, nor any of their affiliated
entities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance of
any product remains solely with the purchaser and end user.

Emerson Process Management

Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore

www.Fisher.com

2

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