Emerson Fisher FIELDVUE DVC7K Series Quick Start Manual page 7

Quick Start Guide
D104766X012
D For air‐to‐close actuators (e.g. Fisher 657) vertically align the magnet assembly so that the center line of the
alignment template is lined up as close as possible with the lower 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
DVC7K housing is within the valid range on the magnet assembly throughout the range of travel. See figure 5.
Figure 4. Air‐to‐Open Magnet Assembly Alignment
RETAINING
SLOT
INDEX
MARK
W9718
6. Tighten the fasteners and remove the alignment template.
Note
Use a flat end hex key to tighten the magnet assembly fasteners to a torque of 2.37 Nm (21 lbfin) for 4 mm screws, and
5.08 Nm (45 lbfin) for 5 mm screws. For added security, especially in vibrating services, blue (medium) threadlocker may be
used on the fasteners.
7. Mount the digital valve controller to the mounting bracket, using the mounting bolts.
8. Check for clearance between the magnet assembly and the DVC7K feedback slot.
Note
Ensure that there is clearance between the magnet assembly and the
9. Proceed to Step 2—Connect the Pneumatic Tubing on page 17.
Figure 5. Air‐to‐Close Magnet Assembly Alignment
ALIGNMENT
TEMPLATE
RETAINING
SLOT
INDEX
MARK
W9719
DVC7K
DVC7K Digital Valve Controllers
housing slot throughout the full range of travel.
October 2023
ALIGNMENT
TEMPLATE
7