INSTALL BATTERIES
Remove screw located at rear end of unit and pull down hinged battery door to open. Always
insert all 4 batteries into the compartment in the same direction. Note the polarity mark on the
inside of the battery door for proper battery installation.
SENSOR
To Replace Sensor: Remove sensor by unscrewing sensor cover. Install the new sensor by
aligning the notch in sensor socket with the raised tab on socket holder.
NOTE:
Do not force sensor into socket. Misalignment can damage the sensor pins
PARTIAL LIST OF DETECTABLE GASES
METHANE
PROPANE
ETHANE
BUTANE
HYDROGEN
ETHYLENE
ETHANOL
ISO-BUTANE
NOL
GASOLINE
ACETYLENE
METHYL ETHER
AMMONIA
H. SULFIDE
INDUSTRIAL SOLVENTS
BENZENE
ALCOHOLS
ACETONE
TOLUENE
XYLENE
4