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Preparation
During calibration the acoustic alarms are suppressed.
When calibration has finished, the machine restarts
ventilation.
l
Reconnect
Y-piece.
The acoustic alarms remain muted for another
15 minutes, the lower alarm limit for minute volume is
switched off for 2 minutes.
1 Screen display:
02 Cal. interrupted
Or
2
Display in window for 02 concentration:
_-
See 'Fault, Cause, Remedy', page 104.
If calibration
is to be discontinued
for instance,
when &ta
needs to be used immediately:
3 Press w v
button again, the machine operates with
the previous calibration values and
1 Display on screen:
02 Cal. interrupted
When monitoring
is to be switched
off in exceptional
circumstances
for instance, if a malfunction in 02 measurement cannot
be put right immediately:
4
Press I!3
button, yellow LED flashes:
Ch monitoring
is switched
off permanently
Switching on again:
4
Press @
button again, yellow LED goes out.
L
15
:
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