Sartorius Stedim Biotech MD8 airscan, Руководство по эксплуатации, Страница: 23 / 57

Each further press on the key moves the display further through the menu (to airflow rate and
then filter class), and finally back to the initial starting mode “sartorius MD8 ready to start”
(flow chart 2).
You can press Stop at any time to return to the initial starting mode.
To change the setting of the parameter on display, press either the ⇑ or the ⇓ key. The new
setting will flash to indicate that it has not yet been stored. If you exit the parameter input
menu without saving the new setting with
Enter , the change will be ignored and the former
setting will remain stored.
When the ⇑ or ⇓ key is only briefly pressed, the value will change by 1 (0.1 for air flow rate,
0.01 for calibration values). If you hold down one of these keys, the value displayed will
automatically be increased or decreased by 1 (or 0.1, 0.01) every 0.5 second following a brief
delay of 1 second. After 3 seconds, the change rate doubles, and after a further 3 seconds,
redoubles.
The instrument always limits the entered values to meaningful values.
The air sampling time can be set from 1 to 99 minutes.
The air flow rate can be set from 2.0 to 8.0 m
3
/h.
The filter class is not a value. The filter type used must be set here, from the choice of
“gelatin 3 μm”, “cellulose 0.8 μm” or “cellulose 8 μm”. Pressing the
⇑ or ⇓ key moves from
one to the next of these. This setting influences the internal control parameters of the
MD8 airscan.
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