3) Disconnect the battery from the instrument and
replace it with a standard 9-volt transistor battery and
reinstate the cover.
4) Make sure the battery cover is secured after
changing the battery.
7.MAINTENANCE
1) The white plastic disc on the top of the detector
should be cleaned with a damp cloth when
necessary.
2) Do not store the instrument where temperature or
humidity is excessively high.
3) The reference level, as marker on the face plate, is
on the top of the sensor.
4) The calibration interval for the sensor will vary
according to operational conditions, but general the
sensitivity decreases in direct proportion to the