Instructions for Use Neonatal Intensive Care System VARIOTHERM REA-KCE
D 2002_01.doc
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Display
Sequence of functions
Alarm
Operation above 10 mW/cm² with
15-minutes alarm and automatic
heating capacity reduction.
If exposed to radiation intensity
> 10 mW/cm² under certain circum-
stances the infant's body temperature
can increase considerably. An
intensity selection > 10 mW/cm² is
indicated by warning lamp (6.10). If
higher radiation intensity is emitted for
more than 15 minutes, it is auto-
matically reduced to 10 mW/cm². If
the higher intensity should be
continued, this must be confirmed by
pushing the button (6.4).
In LED (6.12a) the spot for the sel-
ected intensity and the spot for
10 mW/cm² flash alternately and a
short alarm tone sounds in intervals of
2 seconds. By pushing button (6.4)
the alarm is reset and the selected
intensity is emitted for further
15 minutes.
Normal operation above 10 mW/cm²
Provided that the patient's temp-
erature supervised in another way, for
well-founded reason the automatic
intensity reduction can be deactivated
by pushing button (6.4) for more than
3 seconds and it can be reactivated in
the same way. It must be particularly
paid attention to the danger of
hypothermia in case of operation with
intensity above 10 mW/cm²!
Deactivating the automatic intensity
reduction with button (6.4) is
confirmed by two short tones and the
warning lamp (6.10) flashes. The
reactivation of the automatic intensity
reduction with button (6.4) is con-
firmed by one short tone. The warning
lamp (6.10) lights, if a value
> 10 mW/cm² is selected.
Reducing the radiation intensity
By turning the knob (6.13) anti-
clockwise the radiation intensity will
be reduced.
Each adjustment is
confirmed by a short tone.
The
selected intensity is indicated in LED
(6.12a). Corresponding to the cooling-
off state, the bar graph (6.12b)
displays the emitted radiation
intensity. The selected intensity is
reached when the topmost field of the
bar graph (6.12b) has dropped to the
topmost spot of LED (6.12a). The
cooling-off can take 1 to 4 minutes,
depending on the selected intensity.
When the emitted radiation intensity is
higher than the selected intensity, a
high intensity alarm is released.
However, the device recognizes the
conscious intensity reduction and
therefore only a visual alarm is
released by flashing of the topmost
field of bar graph (6.12b). When the
device has cooled-off to the new
selected intensity, this flashing field
will extinguish. If not, the high
intensity alarm will sound after 15
minutes. This audible alarm can be
reset for 15 minutes by button (6.4).
Switching-off the heating
The heating is switched-off with button
(6.2) and the pilot lamp for the safety
cut-off beside the battery compart-
ment lights. For safety reasons the
residual heat emitted by the heating
elements is displayed in bar graph
(6.12b). After cooling off below
2 mW/cm² the bar graph is switched-
off automatically.
No alarm
