Emerson Crosby J Series Installation, Operation And Maintenance Manual page 5

CROSBY J SERIES PRESSURE RELIEF VALVE WITH FISHER™ 4320 WIRELESS POSITION MONITOR
INSTALLATION, OPERATION AND MAINTENANCE MANUAL
4. Use the left button to toggle the recording
position to MARKED.
FIGURE 2-11
Second Point Set
5. Press NEXT to enter the APPLY menu.
FIGURE 2-12
Second Point Mark
6. Select YES to apply the changes.
FIGURE 2-13
Second Point Mark
7. The following screen will confirm the
changes.
FIGURE 2-14
Second Point Mark
8. Click NEXT to finish.
CAUTION
During calibration the valve will move full stroke,
this may release of pressure or process fluid,
provide some temporary means of control for the
process.
Failure to do so may result in personal injury or
property damage.
NOTICE
During the calibration procedure, the valve is
moved to one position and marked. The valve is
then moved to other end of travel and the second
position is recorded (marked).
Earlier calibration points can be used or
discarded. Applying calibration points without
changing the valve position will result in the
calibration attempt being unused or discarded.
NOTICE
Refer to Fisher 4320 Wireless Position Monitor
Instruction Manual for any difficulties with device
or calibration.
9. Loosen the two Spindle Nuts, move them
down the Spindle and verify the 4320
calibration shows the 0% position on the
screen, preferably the reading -4% to -7%
is suggested to compensate for any growth
when valve is in service. Lock in place and
apply Loctite to the two Spindle Nuts by
torque force specified in Table 2, Location 3.
Verify the screen is still reading between
-4% to -7%.
FIGURE 2-15
Verification
5