Quick Start Guide

Quick Start Guide

D103556X012

DVC6200 Digital Valve Controllers

January 2014

Fisher GX Actuators

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.

2. The DVC6200 digital valve controller mounts directly on the GX actuator without the need for a mounting bracket.

Make sure you have the correct DVC6200 housing, identified by mounting bolt slots (not holes) below the output

press sure port.

Figure 6. Housing Configuration for Fisher GX Actuators

SLOTS FOR

MOUNTING BOLTS

HOLE FOR

MOUNTING BOLT

W9704

INTEGRAL OUTPUT

PRESSURE PORT

3. Identify the yoke side to mount the DVC6200 digital valve controller based on the actuator fail mode. Refer to the

GX Control Valve and Actuator System instruction manual (D103175X012)

4. Loosely attach the feedback pieces and magnet assembly to the valve stem connector. Do not tighten the fasteners

because fine adjustment is required.

CAUTION

Do not install a magnet assembly that is shorter than the physical travel of the actuator. Loss of control will result from the

magnet assembly moving outside the range of the index mark in the feedback slot of the DVC6200 housing.

5. Using the alignment template (supplied with the mounting kit), position the feedback assembly inside the retaining

slot.

6. Align the magnet assembly as follows:

For air‐to‐open GX actuators

Vertically align the magnet assembly so that the center line of the alignment template is lined up as close as possible

with the upper

extreme of the valid travel range on the magnet assembly. The magnet assembly should be positioned

so that the index mark in the feedback slot of the DVC6200 housing is within the valid range on the magnet assembly

throughout the range of travel. See figure 7.