Sartorius Stedim Biotech MD8 airscan, Operating Instructions Manual, Page: 30 / 57

8.1 Calibration procedure
1. The MD8 airscan moves to the first measurement point and continually displays the
nominal and actual values (“nominal: #.# m
3
/h actual: #.# m
3
/h”).
2. As soon as the nominal value is reached and stablilized, which can be recognized from
the actual value display, press the parameter key.
3. The MD8 airscan now continues to run uncontrolled, i.e. the setpoint of the motor does
not change, so that the air flow rate remains constant. The display shows “nominal 3.0 m
3
/h
real ##.## m
3
/h”.
4. As soon as the calibration unit has stabilized and displays a constant value, set this on
the MD8 airscan using the
⇑ or ⇓ key, then confirm and store it with Enter.
5. If this is not the last calibration point, the next one is automatically called up and
process 1– 4 is repeated. When the 7 m
3
/h value has been calibrated, the calibration is
finished. This is shown by the message “calibration completed (ENTER)”.
6. Confirm by pressing ENTER . The instrument returns to the initial starting position and
is ready to start.
Note:
If the calibration is interrupted ahead of time, either the message “user break! (press ENTER)”
or “overheated device (ENTER)” will be displayed. Confirm this message by pressing
ENTER .
The MD8 airscan returns to the initial starting position.
The altered calibration curve is stored immediately when the calibration has been finished
or interrupted.
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