Dräger caleo Instructions For Use Manual page 35

Activate the self-test, check audible warning tone
1 Switch on the unit = press the on/off switch until it clicks into
position.
During the self-test, the functions of the machine are checked.
The audible signal, alarm beep sequence, screen displays and
LEDs must be checked by the user.
– An audible warning signal and an alarm beep sequence are
sounded.
If the warning signal or alarm beeps are not sounded,
Call DrägerService.
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– The screen and LEDs initially go dark and are then lit.
If individual pixels fail to light up or screen images are burnt,
or if the LEDs fail to light up,
Call DrägerService.
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– The opening screen is displayed.
If the opening screen is not displayed,
Call DrägerService.
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The unit is switched on.
Checking readiness for operation
Before each use
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