Mighty Mule VEHICLE SENSOR Installation Manual
WARNING
WARNING
!
SENSOR with 50 feet
of Direct Burial Cable
Range
Adjustment Board
Warning Signs (2)
Wire Nuts (3)
Battery Connection
Wires (2)
Double Spade
Connectors (2)
Ty-Wraps (4)
Wire Clamp
!
WARNING
GATE OPENING
SENSOR IN USE
The Automatic Gate Opener is activated when a
vehicle comes within range of the sensor buried
along side the driveway and could possibly be
activated by a child on a bicycle, tricycle or other
metal play equipment.
WARNING
®
VEHICLE SENSOR
Installation Manual
When a VEHICLE SENSOR is in use, the automatic gate opener could be activated by
a child on a bicycle, tricycle or other metal play equipment. This product is not recommended for applications exposed to children.
Parts Identification:
GTO, Inc. • 3121 Hartsfield Road • Tallahassee, Florida 32303
1-800-543-GATE (4283) • Technical Support 1-800-543-1236
www.mightymule.com
RWINSTMM
rev-5/18/07
Thank You ...
for purchasing the hands free VEHICLE SENSOR. This product requires no maintenance and will give you
years of enjoyment by providing hands free operation of your gate. GTO, Inc., has been designing and manufacturing reliable, high quality products since 1987. Our corporate headquarters and state of the art manufacturing
facility is located in Tallahassee, Florida. One of our highest priorities is to provide outstanding technical service
to our customers. Therefore, if you have any questions or require any technical assistance, visit www.mightymule.com or call our toll free line 800-543-1236 for technical support.
The VEHICLE SENSOR you have purchased is designed with some of the most advanced technology available.
In layman’s terms, the sensor detects a change in the earths magnetic field caused by a mass of metal in motion
and automatically opens your gate. The range adjustment potentiometer (POT) that connects to the control box
provides you with the ability to increase or decrease the sensor’s sensitivity range.
If a metal object is placed directly above the sensor (with little motion) it may cause the sensor to activate, thus
opening your gate. For this reason we do not recommend the VEHICLE SENSOR in environments exposed to
children.
Prior to installing your Sensor please read the manual thoroughly. There are important safety recommendations
of which you should be aware. This product, and any accessory you purchase, should only be installed on a gate
opener that meets the current safety standard (UL325). If you have a gate opener that is not listed with the current
standards, please contact the GTO sales department at 800-543-4283 or 850-575-0176 for consultation on a gate
opener that can meet your specific needs.
Joe Kelley, President of GTO, Inc.
Contents
Before You Start ----------------------------------------------------------------------page 1
Terms and Definitions: -----------------------------------------------------------page 1
How the VEHICLE SENSOR works: ----------------------------------------- How the Vehicle SENSOR’s RANGE ADJUSTMENT works: ----------- Placement of the SENSOR: -----------------------------------------------------page 2
Installation Overview: ------------------------------------------------------------page 2
Installing the VEHICLE SENSOR -----------------------------------------------page 3
Determining SENSOR Location: ---------------------------------------------- Installing The WIRE CLAMP: -------------------------------------------------Wiring the SENSOR to the Mighty Mule Opener: ----------------------------page 4
Accessory Terminal Connection ------------------------------------------------page 4
Connecting the Range Adjustment Control Board: --------------------------page 5
Power Supply Connection: ------------------------------------------------------page 5
Powering up the SENSOR: -----------------------------------------------------page 6
Adjusting the Range: ------------------------------------------------------------page 6
Safety Precautions: ---------------------------------------------------------------page 6
Installation on other Brand Gate Openers --------------------------------------page 7
Technical Specifications -------------------------------------------------------------page 8
Trouble Shooting ---------------------------------------------------------------------page 8
Other GTO Products ----------------------------------------------------------------page 9
Metric Conversion Chart & Warranty ----------------------------- Inside Back Cover
page 1
page 1
page 3
page 3
Conversion Chart
Converting Metric Units to English Equivalents
When You Know Multiply By To Find Symbol
centimeters 0.3937 inches in. (or “)
meters 3.2808 feet ft. (or ‘)
kilograms 2.2046 pounds lb. (or #)
Converting English Units to Metric Equivalents
When You Know Multiply By To Find Symbol
inches 2.5400 centimeters cm
feet 0.3048 meters m
pounds 0.4535 kilograms kg
Converting Temperature
deg. Celsius (ºC x 1.8) + 32 deg. Fahrenheit ºF
deg. Fahrenheit (ºF-32) ÷ 1.8 deg. Celsius ºC
This product and any accessory you purchase should only be installed on a gate
opener that meets the current safety standard, UL325, 4th Edition. If you have
a gate opener that is not listed with the current standard please contact the GTO
sales department for consultation on a gate opener that can meet your specific
needs.
GTO Limited One Year Warranty:
GTO, Inc., gate openers and accessories are warranted by the manufacturer against defects in materials and manufacturer workmanship for
a period of one (1) year from date of purchase, provided the recommended installation procedures have been followed.
In the case of product failure due to defective material or manufacturer workmanship within the one (1) year warranty period, the product
will be repaired or replaced (at the manufacturer’s option) at no charge to the customer, if returned freight prepaid to GTO, Inc., 3121
Hartsfield Road, Tallahassee, Florida, USA 32303. IMPORTANT: Call (800) 543-1236 for a Return Goods Authorization (RGA) num-
ber before returning accessory to factory. Products received at the factory without an RGA number will not be accepted. Replacement
or repaired parts are covered by this warranty for the remainder of the one (1) year warranty period or six (6) months, whichever is greater.
GTO, Inc. will pay the shipping charges (equal to United Parcel Service GROUND rate) for return to the owner of items repaired under
warranty.
The manufacturer will not be responsible for any charges or damages incurred in the removal of the defective parts for repair, or for the
reinstallation of those parts after repair. This warranty shall be considered void if damage to the product(s) was due to improper installation
or use, connection to an improper power source, or if damage was caused by lightning, wind, fire, flood, insects or other natural agent.
After the one (1) year warranty period, GTO, Inc. will make any necessary repairs for a nominal fee. Call GTO at (800) 543-1236 for
more information. This warranty gives you specific legal rights, and you may also have other rights which may vary from state to state.
This warranty is in lieu of all other warranties, expressed or implied. NOTE: Verification of the warranty period requires copies of
receipts or other proof of purchase. Please retain these records.
Before You Start ...
Please read the instructions completely before you begin the installation.
Terms and Definitions:
• METAL OBJECT: anything that is made of iron-based metal, from a child’s toy to a car or truck.
• SENSOR: the magnetic device inside the waterproof tube that detects METAL OBJECTS in motion.
• MAGNETIC FIELD: an area around the SENSOR where metal in motion can be detected.
• MAGNETIC DISTURBANCE: a change in the MAGNETIC FIELD which lets the SENSOR know that it
needs to send a signal to the gate opener to open the gate.
• RANGE: the distance from the SENSOR in which a MAGNETIC DISTURBANCE can be detected in the
MAGNETIC FIELD.
• RANGE ADJUSTMENT: the RANGE is adjustable from a 3 to 12 foot* radius by tuning the ADJUSTMENT
POTENTIOMETER (POT) on the RANGE ADJUSTMENT CONTROL BOARD (shown on page 5). Within
this RANGE, the closer you get to the SENSOR, the less metal and motion an object needs to cause a DISTURBANCE in the MAGNETIC FIELD.
CAUTION This principle explains why a child’s tricycle, bicycle and other metal objects moving close to the
SENSOR may have the same DISTURBANCE as a car or truck at a greater distance, and can cause the gate
to open.
• WIRE CLAMP: a device which provides a secure and weatherproof opening for the cable from the SENSOR
to be brought into a control box (see Parts Identification on cover).
• DOUBLE SPADE CONNECTOR: a wire connector which allows the connection of two wires to be connected to a single terminal (see Parts Identification on cover).
How the VEHICLE SENSOR works:
• When a metal object such as a car, truck or motorcycle in motion disturbs the MAGNETIC FIELD around the
SENSOR, a signal is sent to the automatic gate opener’s control board, signaling it to open the gate.
• The metal object must be in motion to disturb the MAGNETIC FIELD, thus activating the gate opener.
How the VEHICLE SENSOR’s RANGE ADJUSTMENT works:
• The RANGE distance can be adjusted from a 3 to 12 foot* radius from the SENSOR.
• The potentiometer varies the sensitivity range of the SENSOR to avoid unwanted moving metal objects from
activating the gate opener, such as: other moving gates; metal play equipment; garage doors; other vehicular
traffic; etc.
• With the RANGE adjusted to the maximum of 12 feet*, a large metal object moving slowly will be detected
12 feet* from the SENSOR, while a small metal object moving slowly might not be detected at the same
distance. As you move closer toward the SENSOR, the small moving metal object will at some point cause a
DISTURBANCE in the MAGNETIC FIELD and activate the gate opener.
Placement of the SENSOR:
* Range distance is approximate and will vary due to outside interference, type of soil, vehicle mass, speed, etc.
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