© PCE Instruments
1
7 Operation
7.1 Before first use
− Fully charge the battery before the first use. The charging socket is located on the right
side above the sensor arm bracket.
− Switch on the meter using the "On / Off" key and leave the device switched on for about
one hour for the sensor to acclimatise. Deactivate the automatic power-off function with
the APO key.
− If you do not use the device for more than two months, repeat this procedure.
7.2 Before use
− Check the meter for mechanical damage.
− Only switch on the unit in an environment unpolluted by gas.
− Carry out a gas test with the appropriate test gas.
− Attention! When using a lighter, only move the sensor head very slowly towards
the gas source. A 100 % concentration exposure can destroy the sensor.
− If the gas is not detected, the device is not ready for use.
− After the gas test, wait until the display shows “0”.