Control and operation
HICO-VARIOTHERM 550
37
6.2.5 Temperature control operation
There is a risk of the patient becoming overheated or
undercooled.
► The patient's body temperature must be monitored when
using the unit and water pad on the patient.
If the nominal temperature value is set between 35 °C and 38 °C,
then the unit will start normal operation after switching on and
after the function test, and regulate the water temperature in the
water circuit of the system to the set value.
If the nominal value is higher than 38 °C or lower than 35 °C, the
unit will emit an audible alarm and the message "NOMINAL
VALUE <35/>38 °C!", "RELEASE KEY" appear in the display
(12).
Check whether the nominal value is correct and do not pressing
the release key (20).
The unit starts temperature control operation and the display (12)
shows the reading
"HEATING ACTIVE" or "COOLING ACTIVE".
Only leave the water pad in contact with the patient in
normal operation.
Due to the excellent heat conductivity of water, the patient may
cool down when the unit is switched off or the water pad is
disconnected from the unit.
If due to external conditions and pad size a desired nominal
value is not reached within 60 mins after switching on the
system, an alarm message (TEMP.DIFF >1 °C) see chapter
6.3.2 Alarm descriptions during operation…;
In this case, adjust the nominal value to the actual value
displayed.
Check the water flow in the display (15)!
