Sartorius Stedim Biotech MD8 airscan, Operating Instructions Manual, Page: 29 / 57

8. Calibration of the MD8 airscan
As already described above, you can call up the calibration menu with a two-key combination
when the MD8 airscan is in the initial starting position, i.e. the message “sartorius MD8 ready
to start” is displayed.
Press the
⇑ and ⇓ key simultaneously for 3 seconds.
The calibration function is shown in the display by the message
“calibration – 3 point (START)”.
When
Start is now pressed, the 3-point calibration mode is started.
To perform calibration, a Sartorius Stedim Biotech calibration unit 16740 must be connected.
Exact details on how to do this are given in section 5 of the operating instructions provided
with the calibration unit (publication number SL-6051a).
A complete reference curve for the flow rate sensor is stored in the MD8 airscan software,
which can be brought into line with each instrument by the 3-point calibration. In the
3-point mode, the air flow rates at the 3, 5 and 7 m
3
/h settings are successively run and
compared with the values measured by the calibration unit.
Calibration can be interrupted at any time by pressing the Stop key, and is done so
automatically when the unit becomes overheated. The points measured and recorded up
to this interruption are not stored, however. The last calibration values remained valid.
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