Switching On And Off; Setting Sample Volume - Cantium Scientific MicroBio MB1 Operating Manual

The standard MicroBio MB1 can use 220 or 400 hole sampling heads. The
220 hole sampling head can be used with both 55mm / 65mm contact plates
or 90mm petri dishes, but only the centre 55mm of the petri dish will collect
samples. Using the 400 x 0.7mm hole sampling head will give nearly full
coverage of a 90mm petri dish, improving reliability of counts.

Switching On and Off

To switch the unit on press any of the four buttons for at least half a second.
If a button is held for too long (greater than 2 seconds), the unit switches off.
This protects the sampler from being inadvertently switched on.
MicroBio MB1 will display the last volume setting used. The unit will switch
off automatically if not used or after sampling has completed.
When the battery needs re-charging the display will show four dots below the
volume setting. If the battery level is too low, the MicroBio MB1 will not allow
samples to be taken.

Setting Sample Volume

⊕ ⊖
Use the or buttons to select the volume of air to be sampled.
Volumes can be set as follows:
• 10 to 200 litres in 20 litre steps
• 200 to 500 litres in 50 litre steps
• 500 to 1000 litres in 100 litre steps
• 1000 to 2000 litres in 250 litre steps
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