User Guide

5 First steps
10
4. Slide the top part of the handle back on.
Switch on
WARNING
Danger of explosion!
> The instrument must not be used in environments where
flammable gases are present.
> Press [ ] briefly.
- PWR LED lights up and all yellow gas concentration indicator
LEDs start to flash one after another.
- The sensor is heated up.
- The instrument is ready to use once the gas concentration
indicator LEDs have gone off and one beep per second can be
heard.
Switch off
> Press and hold down [ ].