Dräger PM 8030 Instructions For Use Manual page 13

Calibration
Checking linearity
to be carried out monthly
First calibration with OZ. page 12, then:
l
Expose sensor to ambienr air for about 2 minutes.
1 02 concentration display:
21 vol. % 02 2 3% by vci.
l
Replace 02 sensor on cap
If the display is outside the range 18 to 24% 02 by
vol.,
the sensor capsule is faulty.
0 Replace capsule. page 7 and calibrate, page 11.
Calibrating flow sensor
when sensor has been replaced
- after 24 hours of operation
0 Unscrew measuring connection and
remove
flow
sensor.
l
With flow sensor in horizontal position - connector
pointing downwards seal both openings in the
ambient air preferably using thumb and middle finger.
.After a request by the monitor when switching on
Or
1 Press calibration button and select flow sensor.
2 Display:
Calib. flow sensor?
yes no cleaning
With sealed Sensor
3 Select >yes< and confirm
2 Display:
Flow sensor
calibration