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Instruction Manual

D103621X012

4320 Position Monitor

April 2014

Sliding‐Stem (Linear) Actuators (e.g. Fisher 667)

Before mounting, verify that linear travel is greater than one‐half and not more than the maximum recommended

travel of the feedback kit.

1. Attach the mounting bracket to the actuator.

2. 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 4320 housing.

3. Center the magnet assembly inside the retaining slot 5.7 mm (0.22 inch) away from the bottom base of the

housing as measured from the center of the assembly bolt holes to the base of the housing (see figure 13).

4. Align the magnet assembly as shown in figure 13.

5. Tighten the fasteners.

6. Mount the wireless positioner monitor to the mounting bracket, using the mounting bolts. Any of the mounting

holes may be used for linear actuators. See figure 14.

7. Once the instrument is mounted perform the local interface calibration procedure, as described on page 31. Verify

the magnet assembly position through the entire travel range before putting into service.

Figure 13. Mounting—Sliding‐Stem Magnet Assembly

GE59830

MOUNTING FACES

MOUNTING

FACES

(INCH)

MAGNET

ASSEMBLY

BOLT

BASE OF

HOUSING

5.7 $ 2.0

(0.22 $ 0.08)

ON/OFF

CONTROL OPTION

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 67 68

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Emerson Fisher 4320 Bedienerhandbuch Seite 21