How to Adjust the Visual Indicateur
Visual Indicateur
Style M – Indicateur
Instructions to adjust vane style indicateurs. From the removal of the clear cover to necessary visual indicateur adjustments.
Installation – Adjusting
- Mount the valve position transmitter to the valve or actuator with the correct mounting bracket.
- Determine the true valve position and compare the Moniteur’s
Indication with the true valve position. If the Moniteur display is
synchronized, proceed to Step 12. If it is not, continue to Step 3.
- Remove the clear Moniteur cover by turning it counter-clockwise to
disengage the detent and then lift it off. Determine the level of
adjustment that needs to be made. If only a small adjustment is
necessary (less than 20 degrees in either direction), proceed to step 4.
If a larger adjustment is required, such as 45, 90 or 135 degrees from default, proceed to step 7. - Remove the Moniteur Visual Indicator by lifting it upward off the
shaft and the Infinite Adjusting Ring. Loosen screws B and C shown in
fig.1 (do not remove screws). The Infinite adjusting ring should rotate
freely over the enclosure cover of the Valve Position Transmitter.
- Return the Moniteur Indicator to the output shaft. As it slides down
along the shaft, be sure that the Moniteur Indicator’s base engages the
Infinite Adjusting Ring on pins “E”. (fig.1)
- Rotate the Moniteur Indicator by applying a light rotational force
to the vertical vanes to synchronize it with the true valve position.
Once aligned, proceed to Step 9. If further adjustment is necessary, you
will need to continue with Step 7.
- Remove the Moniteur Visual Indicator by lifting it upward off the
shaft and the Infinite Adjusting Ring. Remove screws B and C from the
Infinite Adjusting Ring. Rotate the setting ring and match the number on
the plastic ring with the number cast into the enclosure, according to
the following requirements:
90 – 90: as shipped from the factory – shipped as “Open”.
45 – 45: “Open” is 45 degrees CCW in travel from default.
135 – 135: “Open” is 45 degrees CW in travel from default.
180 – 180: “Open” is 90 degrees CW or CCW from default. (This is the
setting to switch default indication from Open to Closed.)Return screws B
and C to their appropriate threaded holes,but do not tighten them
completely. Now return the Moniteur Indicator to the output shaft. Be
sure that the Indicator’s base engages the infinite adjusting ring on
pins “E”. (fig.1) - Rotate the Moniteur Indicator by applying a light rotational force
to the vertical vanes to further synchronize the Indicator with the true
valve position.
- Remove the Moniteur Indicator, being careful not to rotate the Infinite Adjustment Ring. Hold Ring stationary and
tighten screws B and C.
Re-assembly of Indicateur
- Return the Moniteur Indicator being certain that both the output shaft and pins “E” of the Infinite Adjusting Ring are engaged.
- Return the clear Moniteur cover by inserting it into the breach lock
on the enclosure cover and turning it Clock-wise until the unit engages
the detent.
- Cycle the valve to the opposite extremity. If the Moniteur Indicator
is displaying the correct valve position, installation is complete. If
not, it is probably because the actuator is not moving exactly 90
degrees. Adjust the stroke of the actuator so that it is rotating 90
degrees and the Moniteur Indicator will indicate the correct valve
position. Installation is now complete.