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Control and operation
HICO-VARIOTHERM 550
48
6.3.2.3 Display message: ALARM TEST DEFECTIVE
CUSTOMER SERVICE
The unit triggers this alarm if it has detect a fault during the
automatic or manual function test or has found that the
independent protection does not respond. The display shows
"ALARM TEST DEFECTIVE" and "
CUSTOMER SERVICE",
the yellow fault lamp (13) flashes and a pulse signal tone sounds.
The audible alarm
cannot
be interrupted using the "Audio
paused" key (18).
•
Switch off the unit at the mains switch (16).
•
Switch the unit back on.
If the unit still emits an alarm take it out of service and have it
inspected by a Service engineer (Customer service / Medical
engineering).
6.3.2.4 Display message: UNDERTEMPERATURE CHECK UNIT
The unit triggers this alarm if the water tank temperature falls
below the measuring range (approx. 9 °C). The display shows
"UNDERTEMPERATURE" and "CHECK UNIT". The yellow fault
lamp (13) flashes and a pulsating signal tone sounds. The
temperature display shows
.
The audible alarm
cannot
be interrupted using the "Audio
paused" key (18).
•
Switch off the unit with the mains switch (16).
•
Take the unit to a warmer environment and wait for about 2
hours.
•
Switch the unit back on.
► Store the unit only in the permissible temperature range, the
unit may otherwise be damaged (3-60 °C).
► Only operate the unit in the permissible temperature range
(10-30 °C) at hyperthermia and (10-23 °C) at hypothermia,
otherwise it does not function in a fail-safe manner and may
be damaged (Observe chapter 4.2.1 Requirements for
installation and operating site!)
If the unit still emits an alarm take it out of service and have it
inspected by a Service engineer (Customer service / Medical
engineering).