Continuous tone – volume must remain constant for
30 seconds.
If not, reconnect to mains and leave machine on for
24 hours so that battery can recharge. Repeat test!
● Switch off machine. Press power switch again and
turn to O. Alarm goes out.
● Reconnect to power supply.
Self-test
The self-test must be completed successfully in order to
establish readiness for operation!
Supplementary equipment must not be switched on until
after the self-test.
Start self-test:
● Switch on machine: press power switch.
Test proceeds as described from page 31 onwards.
Calibrate flow sensor, see page 30
Calibrate inspiratory O2 sensor with
100% O
2
This is only necessary if sidestream O2 measurement is
not used.
● Remove O2 sensor and place test adapter 68 01 349
on sensor.
● Allow an O2 flow of approx. 1 L/min to flow over the
O2 sensor for approx. 2 minutes.
● Select »more« with the rotary control.
● Select »O2 sensor 100 Vol.%« with the rotary control.
● Display:
When the O2 sensor has been flushed with O2 for
approx. 2 minutes:
● Press rotary control to confirm; calibration is then
started and continues automatically.
The clock icon is replaced by a tick (✓) when calibration
is complete.
● Replace the O2 sensor in its mount.
103
Check operational readiness
Self-test
Calibrate flow sensor
Calibrate inspiratory O
2
sensor
Standby / Configuration Alarms inactive!
O
2
sensor
100 vol. %
linearity
test O
2
CO
2
sensor
Detach O
2 sensor and
flush with 100 vol. % O
2.
calibrating
O
2
sensor
21 vol.%
flow sensor
Ventilator-
start up test
more
✓
✓
✓
✓
Calibrate O
2 sensor after
replacing sensor and after 24 hrs.
O2
ca. 1 L/min
07228971 19428970
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