MM272 Installation Instructions
vii
For the Installer and End User
Important Safety Information
Mighty Mule gate operators utilize Dual Sense
Technology™ entrapment protection. Dual Sense
Technology™ is built into every Mighty Mule and
provides redundant methods of entrapment protection
for open and close gate directions.
In addition to Dual Sense Technology, every Mighty
Mule gate controller has provisions for the connection
of additional obstruction detection devices such as
sensing edges and photo beams.
These devices may be located where there is an
increased risk of obstruction. Refer to the diagram
below.
One or more edge sensors may be located at the
leading edge, bottom edge, and post edge, both inside
and outside of a vehicular swing gate system.
Wiring to sensors must be located and arranged so the
wiring between the sensor and the gate operator is not
subjected to mechanical damage.
A wireless sensor such as one that transmits radio
frequency (RF) signals to the gate operator for
obstruction protection functions shall be located
where the transmission of the signals is not blocked or
impeded by building structures, natural landscaping or
similar objects.
Entrapment Alarm
The Mighty Mule Automatic Gate Operator is designed to stop and reverse the gate when the gate comes in contact with
an obstruction. Additionally, these operators are equipped with an audio entrapment alarm which will activate if the unit
obstructs twice while opening or closing. This alarm will sound for a period of 5 minutes, or until the operator receives
an intended signal from a hard wired entry/exit source (e.g. push button control or keypad) and the gate returns to a fully
open or fully closed position. Turning the power switch on the control box OFF and back ON will also deactivate the
alarm. Wireless controls such as transmitters and wireless keypads will not deactivate the alarm.
Entrapment and Obstruction Protection
Mighty Mules’ Dual Sense Technology™ provides entrapment protection when properly adjusted. Since all installations
are different, you may need to add photo beams or sensing edges to help prevent damage to vehicle or other items that
could be hit by a moving gate.
Vehicular Gate
Vehicular Gate
Photo Beam
(recommended, not included)
Photo Beam
(recommended, not included)
Sensing Edges
(recommended, not included)
Sensing Edges
(recommended, not included)
Leading Edges
of gates
