Problem
Device outputs
3 acoustic signals/
the device status LED
flashes – even after
3
switching the device
OFF and ON again.
Application cannot be
started, even though
the ON/OFF switch
is set to ON.
Possible cause
Battery level is too
low, meaning that
the device may no
longer be able to be
operated.
The device has
switched off
automatically, as
2
the activation button
was accidentally
1
pressed for longer
than 2 seconds.
51
Solution
Replace both batteries
as described in these
instructions for use.
First switch the device to
OFF using the ON/OFF
switch
and then switch
2
it on again as usual.