Mighty Mule FM231 - Permanently Install Sensor and Transmitter; Sensitivity Adjustment

Wireless Driveway Alarm Instruction Manual • 03.04.12 5
Sensitivity Adjustment
Permanently Install Sensor and Transmitter
• Oncethesystemistestedandworking,removethe
batteriesandpermanentlyinstalltheSENSOR,SIGNAL
CABLEandTRANSMITTER.
• BurytheSENSORapproximately1ft.deep,flat and
parallel, next to the driveway.
• DiganarrowtrenchorslitfromtheSENSORtothe
TRANSMITTERlocationusingaatspadeorother
tool. The wire from the SENSOR to the TRANSMITTER
should be at least six inches deep to avoid possible
damage.
• SecuretheTRANSMITTERonthesupplied3piece
PVC pipe by burying the bottom third of the pipe in the
soil and tamping the ground around the pipe. DO NOT
cover the TRANSMITTER with a metal cover as this will
cause signal interference.
• SecuretheTRANSMITTERmountingpostinthe
ground so that the TRANSMITTER is upright and
approximately 1 ft. above ground.
• Replacethebatteries.
• TheSENSINGRANGEcanbeadjustedfromapproximately
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 alarm, such as: moving gates, metal play
equipment,garagedoors,othervehiculartrafc,etc.
• Withtherangeadjustedtothemaximumof12ft.,alarge
metal object moving slowly will be detected up to 12 ft.
from the SENSOR, while a small metal object moving
slowly might not be detected at the same distance.
Transmitter approximately
1 ft. above ground.
Leave 2-3 inches of wire
slack inside post so the
transmitter can be remove
without pulling plug loose
when changing batteries.
Edge of Driveway
Bury Sensor 1 ft. deep
flat and parallel to driveway.
Bury any extra wire.
MIN MAX
SENSITIVITY
TRANSMITTER CODE
TRANSMITTING
1 2 3 4
INSIDE TRANSMITTER
Sensitivity
Adjustment
Potentiometer