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Mighty Mule FM138 Installation Manual page 2

Exit wand

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Gate Opener
Control Box
PVC conduit in ground
and up to control box
recommended
The SENSOR is designed to detect iron-
based metal in motion.
The SENSOR's ability to detect iron-based
metal objects is based on the mass, velocity
and proximity of the object to the sensor.
EXAMPLE - A child's bicycle moving at
2 mph @ 1' from the sensor has a similar
effect as a car moving at 2 mph @ 6' from
the sensor.
The SENSOR must be stationary to function
properly.
1.
Obtain the instruction manual for the gate
opener.
2.
Locate the control terminals (2) that will ONLY
OPEN the gate.
3.
Verify that the above inputs when shorted
(a small wire connecting the 2 terminals) will
do all of the following:
• OPEN the gate if the gate is idle.
• STOP and then OPEN the gate if gate is
closing.
• DO NOTHING if the gate is opening.
2
INSTALLATION OVERVIEW
Open Gate
Outside Sensor
Range
WIRING THE WAND
Minimum of 25 feet
SENSOR: 2 feet from
driveway edge and
1 foot in ground
RANGE:
12 ft. radius
(max)
Open Gate
Outside Sensor
Range
Driveway
WAND
BLACK
WIRING
BLUE
+
RED
Braided
Ground
YELLOW
I MPO RTA NT
DO NOT CONNECT THE POWER
INPUT WIRES TO THE POWER
SOURCE (i.e. 12 V battery) UNTIL
INSTRUCTED TO DO SO.
12"
24"
SENSOR:
2 ft. from Driveway (max)
and12 in. deep
Gate Opener
Control Box
( allow 5 ft. for wiring
to Control Box)
TO OPEN ONLY
RELAY OUTPUT
INPUT OF GATE
OPENER CONTROL
Normally open relay contacts, closes for 2
seconds when moving vehicle is detected.
POWER INPUT = 11-30 Vdc or 8-26 Vac

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