Device; Switching On - Wohler HBF 420 Mode D'emploi

Device

4 Device
NOTE!
In the following, the numbers (1) to (4), which are placed in brackets behind the key-
names, will always refer to figure 2.
4.1

Switching on

42

Press the ON/OFF key (3) to switch on the
meter.
At once the meter will be ready to operate.
It is in the hold mode now.
The alarm indication shines green.

To switch off the meter, keep the "On/Off" key
(3) depressed for two seconds.