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Adjusting Gate 1 and Gate 2 Sensitivity
Sensitivity factory setting is on position 5. This setting will work with most gates. Adjust so that when
gate is stopped by an object, it stops and reverses direction.
If gate stops and reverses for no obvious reason then increase force by slightly
adjusting clockwise.
If force is set too sensitive false sensing may be observed.
IMPORTANT: If adjusting for a single gate, once adjustment for that gate is set, also set the
other sensitivity adjustment to the same setting. Adjusting both Gate 1 and Gate 2 sensitivity
adjustments to the same setting for a single gate installation will prevent the possibility of
false trigger and gate reversal.
If opener is installed to auto close and the gate current senses when closing, the gate will return to
the open position and not auto close. This is a designed in safety feature required by UL325. The
transmitter can be used to close the gate and return opener back to normal operation.
Extend and Retract Limit Adjustments
(Gate open and close stop position)
Sentry control board limit adjustments are simple and easy to use. Control board has 4 adjustment
dials for adjusting the desired stop positions (see figure below).
If opener was installed correctly with the actuator in the retracted position, the Retract limit is already
set. You will have to adjust the extend position by turning the “Gate 1 Extend Limit More or Less”
adjustment until the gate reaches the desired position.
Procedure for adjusting is as follows:
Turn the dial that matches the gate action you desire. Then cycle the gate to see the effect the
adjustment made. For example, if the actuator needs to extend more then turn the “Gate 1 Extend
Limit” adjustment in the clockwise direction. Then cycle gate to see the effect.
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19
Close and Open Limit Adjustments
Extend
Retract
