Batteries:
Install Batteries: Remove screw located at rear end of unit and puli down hinged battery door to open as
shown. Always insert all four batteries into the battery compartment in the same direction. Note polarity
mark on the inside of the battery door for proper battery orientation.
Sensor:
Replace Filter: Unscrew sensor tip as shown to replace filter. Replace filter whenever it becomes visibly
dirty or every 2 to 3 months depending on use.
NOTE: Filter replacement will extend sensor life significantly
Replace Sensor: Replace the sensor when the detector will no longer displays 3-6 when testing with the
Leak Test Vial. Remove sensor by pulling out of socket. Install the new sensor by aligning the notch in
sensor cover with the raised keyway on sensor socket holder (see figure below).
NOTE: Do not force sensor into socket. Misalignment can damage the sensor pins.
Unscrew tip to
replace filter
IMPORTANT: Make sure sensor is fully inserted for proper operation. The detector will stay in warm-
up mode and the on/off switch will become inoperative if the sensor becomes loose or is not fully
inserted.
Version 2.0
Maintenance
Polarity Mark
Pull straight out (do not
twist) to remove
sensor
12
Keyway alignment
FINDER
ENGLISH