5 Operation
RadMan 2LT/2XT 21
5.3 Switching the device on/off
5.3.1 Switch on the device
Press the operating button for at least 1 s.
Each time the device is switched on, an automatic self-test including sensor
function test is performed. During the self-test, all LEDs must illuminate for 3
seconds. The remaining capacity of the rechargeable batteries is then
displayed for 3 seconds; the battery status LED also illuminates green during
this time. Afterwards, the self-test is concluded and the green Power LED
flashes. The following results are possible:
Signals Result/measures
• 1 short beep
No errors were detected and the device
is fully functional.
The device switches to the Monitor
operating mode.
• 3 short beeps: ---
• Battery status LED
flashes red
No errors were detected and the device
is fully functional.
Battery with remaining capacity < 5%
The device switches to the Monitor
operating mode.
The rechargeable batteries should
be charged within the next 10 hours
(see Charging batteries on page 20).
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