Maquet HCU 40, Instructions For Use Manual

Page: 84 / 148

| 84 | 6 Messages | HCU 40 |
Instructions for Use | 1.0 | EN | 01
Copyright Maquet Cardiopulmonary GmbH
Message Possible conse­
quences Possible cause Possible action
Pat.: Water tempera­
ture too high Temperature at the out­
let too high. If error is
not rectified: the device
heats up further until a
safety shutdown is initi­
ated. The device can
then no longer be used
for a period of time. Overshoots generated
by regulator Reduce setpoint tem­
perature in order to
avoid overshoots. If the
fault still recurs, notify
authorized service.
Mains power fail No circulation and thus
no temperature regula­
tion possible. Mains power has failed Restore mains supply.
Confirm the error mes­
sage on the CU. Switch
off active circuits. Ma­
chine is ready for use
again (internal UPS
buffers control unit for
10 mins). Use replace­
ment device.
Safety pump stop!
Valve calibration
(~100s)! Start pump af­
ter valve calibration. Valve calibration Wait 100 seconds.
6.4.2 Medium Priority
Message Possible conse­
quences Possible cause Possible action
Cplg.: Water flow too
low! No circulation and thus
no temperature regula­
tion possible. Outlet valve closed. Open outlet valve.
Tube kinked. Remove kink.
Cplg.: No gradient
mode possible... Gradient mode not
available. External temperature
sensor defective or
connection faulty. Check connection to
external temperature
sensor. Reconnect if
necessary.
Cplg.: Water pressure
too high! No circulation and thus
no temperature regula­
tion possible. Outlet valve closed. Open outlet valve.
Tube kinked. Remove kink.
Cplg.: Tank tempera­
ture too high! If the water tempera­
ture exceeds 42°C:
The safety shutdown is
triggered. No circulation
until the water has
cooled down. Temperature in the
tank too high or tem­
perature sensor defec­
tive Activate ice formation.
Replace water in tank
with colder water. If the
error occurs again: No­
tify authorized service.
Use replacement de­
vice.