EMERSON Mounting Instructions DVC6200 or DVC2000 Digital Valve Controller on 657 and 667 Size 34-60 Actuators with Handwheel Fisher

DVC6200 or DVC2000 Digital

Mounting Instructions Valve Controller on 657 and 667 D103442X012

May 2010 Size 34-60 Actuators with Handwheel

Use these instructions to mount a Fisher FIELDVUE 2. Attach the connector arm (key 3) to the valve stem DVC6200 or DVC2000 digital valve controller on Fisher by loosening the valve stem jam nuts and inserting the

657 and 667 size 34-60 actuators w/handwheel. 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.

WARNING

3. Attach the extension arm (key 6) to the connector

Avoid personal injury or property

arm using two pan head machine screws (key 4) but do

damage from sudden release of process

not tighten. See figure 2 for extension arm orientation.

pressure or bursting of parts. Before performing any maintenance operations:

4. Attach the magnet assembly (key 5) to the

Always wear protective clothing, extension arm with two pan head machine screws (key gloves, and eyewear. 4) but do not tighten (the magnet assembly can be

inverted 180 without effect).

Do not remove the actuator from the valve while the valve is still

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

Disconnect any operating lines providing air pressure, electric power, or

6. Push the cap screws and O-ring in the mounting

a control signal to the actuator. Be sure

bracket groove and then attach the black plastic

the actuator cannot suddenly open or

alignment template to the mounting bracket by inserting

close the control valve.

the two protruding posts into the mounting holes in the

Use bypass valves or completely bracket and simultaneously positioning the magnet shut off the process to isolate the assembly so that it can slide into the channel in the control valve from process pressure. alignment template. The magnet assembly should be Relieve process pressure from both fully in the alignment template channel so that the sides of the control valve. extension arm is contacting the back of the alignment

template but not bending it. Tighten pan head machine

Vent the pneumatic actuator

screws (key 4), attaching the extension arm to the

loading pressure and relieve any

connector arm but do not yet tighten the pan head

actuator spring precompression.

machine screws attaching the magnet assembly.

Use lock-out procedures to be sure that the above measures stay in effect

7. For an air-to-extend actuator, slide the magnet

while you work on the equipment.

assembly (key 5) so that the bottom marking aligns with Check with your process or safety the sensor index mark on the alignment template (see engineer for any additional measures figure 1). The magnet assembly’s top marking is used that must be taken to protect against for air-to-retract. The mounting bracket may require process media. vertical repositioning to get the magnet array in the correct location. When the magnet assembly is properly

Refer to figure 2 and the parts list for mounting parts positioned, remove the alignment template and tighten identification. Refer to the DVC6200 or DVC2000 digital the two pan head machine screws (key 4). valve controller instruction manual for digital controller parts identification. Refer to the appropriate actuator

8. Attach the digital valve controller to the mounting

instruction manual for actuator installation, operation,

bracket and tighten the three hex head cap screws

maintenance, and parts identification.

(key 1b).

1. Isolate the control valve from the process line pressure and release pressure from both sides of the 9. Check the position of the magnet assembly (key 5) valve body. Shut off all pressure lines to the actuator, in the channel of the digital valve controller housing and releasing all pressure from the actuator. Use lock-out ensure the feedback array is visually centered between procedures to be sure that the above measures stay in the channel walls and has adequate clearance with the effect while you work on the equipment. backside of the channel (approximately 3 mm).

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