Alarm function Display Buzzer Cause Measure
Door-open warning
3
n The door is open
for more than 60
seconds.
n The door-open
warning is not for-
warded via the
remote warning
contact.
n Deactivate the buzzer.
n Close the door.
Door-open alarm
3
n The door is open
for more than 180
seconds.
n The door-open
alarm is forwarded
via the remote
warning contact.
n Deactivate the buzzer.
n Close the door.
Power failure
warning
3
n The power supply
of the unit has
failed.
n The remote
warning contact
has been trig-
gered.
n Deactivate the buzzer.
n Determine cause of power
failure and rectify.
n The monitoring unit
remains in operation for
approx. 30 hours.
n Acknowledge alarm.
Alarm in case of
defective battery
3
n The power supply
for the tempera-
ture documenta-
tion has failed.
n The alarm function
has failed.
n Inform the service depart-
ment.
n Replace the battery
Ä
‘Service contact’
on page 4.
Alarm in case of
defective display
and control unit
PRO-ACTIVE
3
n The display and
control unit is
defective.
n Unplug the power plug.
n Inform the service depart-
ment
Ä
‘Service contact’
on page 4.
ULTIMATE
The display
remains dark.
10.2 Handling alarms
The buzzer sounds.
1. Press the [Reset] key.
ð
The buzzer is deactivated.
2. Determine cause of the alarm and rectify.
Deactivating the buzzer
Alarms
Handling alarms
23.05.2023 Refrigerator/freezer LABO series 63
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