Cantium Scientific MicroBio MB2 Operating Manual page 22

If Preset Volume is selected, use
volume, then press START.
Select Preset
[1]
If Adjust Volume is selected, use
sampled then press START. The volume may be set in the range of 10 to
10000 litres.
Air Volume +/-
Next define the time over which sampling is to take place.
Duration
08:00:00
⊕ ⊖
Use or to set the required time, from 5 minutes to 24 hours, then press
START.
Enter the number of sequences (2 to 100) using
Sequences
[4]
⊕
or
100L
⊕ ⊖
or
100L
21
⊖
to select the required preset
to set the required volume to be
⊕ ⊖
or , then press START.