AMOT 02GGH, Installation, Operation And Maintenance Manual

Page: 54 / 84

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Pneumatic Positioner 47224X
Rev 5 – MAY 2019 OMMGGP00185
 Check/Adjust the range as follows:
Note
The positioner is set in the factory so that a 0.2 to 1.02 bar (3- 15 psi)
instrument pressure produces a full stroke movement. This may be changed
by resetting the full stroke position (max. opening) at the 1.0 bar (max.
instrument) pressure.
 Set the instrument signal to its maximum value, 1.02 bar (15 psi).
CAUTION
If the knurled adjustment ring is turned too far anti-clockwise, it can
disengage from the spring. Be careful not to turn it too far.

If the actuator does not stop at the full stroke position, rotate the knurled
adjustment ring until the full stroke position is reached.

Turning the range adjustment ring clockwise reduces the range.

Anti-clockwise increases the range.

Repeat the procedure from Step 2 until there are no further adjustments
required for the zero and range.

When adjustment is complete refit the access plug.

Refit the Positioner cover.