Mighty Mule FM700 - Manual (Page 28)

24
Potentiometers
The three (3) potentiometers on the control board operate like a volume control on a radio. They control
the auto close timer, inertia, and obstruction sensitivity of the opener. Use a small slotted screwdriver to
turn the arrow in the center of the potentiometer. Clockwise rotation increases the setting (MAX).
Counterclockwise rotation decreases the setting (MIN).
AUTO CLOSE (auto close timer): Determines how long the gate will
remain open before it automatically closes. The limits are OFF to 120
seconds. The factory setting is OFF.
INERTIA: Fine tunes obstruction sensitivity in the opening and
closing modes. INERTIA allows the opener to attempt to push an
obstruction clear of the gate path. When INERTIA is set to MIN the
opener will obstruct quickly (i.e, will attempt to push against an
obstruction briefly); when set to MAX, the opener will obstruct slowly
(i.e., will push against an obstruction for a longer period). The factory
setting is MIN.
OBSTRUCT SENS. (obstruction sensitivity): Determines the amount
of force exerted by the gate on an obstruction before the opener stops
and reverses. The gate will exert minimum force before obstructing
when set to MIN. When set to MAX, the opener will exert maximum
force before obstructing (i.e., the opener will require greater resistance
before stopping and reversing.). The factory setting is MIN.
READ WARNING BELOW!
NOTE: Heavy gates and gates with high wind resistance may require
the OBSTRUCT SENS. potentiometer to be set closer to MAX to
prevent the opener from obstructing. Keep in mind, however, that
while you must determine the best setting for smooth gate operation,
you must ALSO determine the lowest possible setting for safe gate
operation.
WARNING!
All three potentiometers were set to minimum at the factory. The OBSTRUCT SENS.
potentiometer MUST be adjusted above the factory setting for your Mighty Mule Gate
Opener
® to function properly. If the potentiometer is left at MIN, your gate opener may
"obstruct" (i.e., stop and reverse) as soon as it is activated.
BE SURE TO PROPERLY RETEST THE GATE OPENER AFTER MAKING ANY
ADJUSTMENTS; FAILURE TO DO SO MAY RESULT IN SERIOUS INJURY OR
DEATH!
ALWAYS KEEP
SAFETY
AT THE TOP OF YOUR LIST WHEN ADJUSTING OR
SERVICING YOUR AUTOMATIC GATE OPENER!
1234 ON
AUTOCLOSE
INERTIA
OBSTRUCT
SENS.
RCVR
SEQ1
SEQ2
LEARN
R B G
PULL/PUSH
SNGL/DUAL MIN MAX
MIN
OFF 120
60
MAX