operation manual

– 24 –
Indication sounds:
A double sound is emitted every
 
Volume:
Cause: Contamination of the device
Silencing the
indication sounds:
All indication sounds can be tempo-
rarily deactivated by pressing the
 
(battery error message and conta-
 
90 second
Warranty and guarantee are inva-
lidated if the device is damaged!
Do not immerse the
device in water!
Battery cannot
be replaced (see
“General Safety
Information”)
Closed system; only the cover
can be changed
 
Pull out the red activation
button to switch the
 
24 h