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Description
O
measurement
2
Calibrating the inspiratory O
volume
(Only necessary if sampling O
used)
Remove the O
sensor and fit test adapter 68 01 349
2
to the sensor.
Allow a pure O
flow of about 1 L/min to flow across
2
the O
sensor for about 2 minutes.
2
ca. 1 L/min
Select the »Config.« screen key.
Turn the rotary control to move the cursor from
»Calibrate« to »continue«, and then select and
confirm »O
sensor 100 Vol.%«.
2
u
The clock symbol (
) appears after the text. The tick
( ) indicates the end of calibration.
Plug the O
sensor back into the measuring site.
2
Restore the settings appropriate to the patient.
Checking linearity
– Check linear response monthly.
– First carry out calibration with 100% O
(see illustration)
– Then expose the sensor to the atmosphere for at least
two minutes (approx. 21% O
– If the values of this measurement are not within the
range 18 to 24% O
by volume after a reasonable
2
time (at least 90 seconds for the inspiratory sensor,
and at least 20 seconds for the sidestream sensor),
the sensor capsule is worn and must be replaced by
a new capsule.
176
sensor with 100% O
2
measurement is not
2
O
2
by volume
2
by volume).
2
by
Calibrating the O
2
2
with 100% by volume O
Required for the monthly linearity check.
Prepare a replacement sample line:
Cut a sample line hose into two equal halves.
Unscrew the original sample line from the water trap
and screw the cut replacement line to the water trap.
At the anaesthetic workstation:
Unscrew the fresh gas hose from the breathing
system/circle system.
Deliver an O
flow of 1 L/min to the O
2
tube of the anaesthetic workstation and push the hose
of the replacement sample line deep into the fresh gas
hose.
Set a pure sampling O
about 2 minutes.
On the monitor:
Select the »Config.« screen key.
Turn the rotary control to move the cursor from
»Calibrate« to »continue«, and then select and
confirm »O
sensor 100 Vol.%«.
2
The clock symbol (
( ) indicates the end of calibration.
Rescrew the original sample line to the water trap.
On the anaesthetic workstation:
Reconnect the fresh gas hose.
Restore the patient settings.
sensor for sampling measurement
2
D
Fresh gas hose
1 L/min O
2
measuring
2
flow of about 1 L/min. for
2
u
) appears after the text. The tick
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