Multitron - Operating Manual
Setup and Function
20 August 2020 Page 31 of 158
3.4.2 Ventilation Opening
An opening for ventilation of the interior is located in the top centre
of the rear of the casing. The purpose of ventilation is to supply bac-
terial cultures with oxygen from the air.
The opening with a diameter of 22 mm is covered by a metal plate
with plug and O-Ring. The metal plate can be mounted in two differ-
ent ways:
If the plug (1) is directed inwards and the bevelled parts of the
plate (2) point outwards, the plate seals the opening.
In contrast, if the plate is mounted in such a way that the bev-
elled parts face the device, this results in a ventilation slot.
INFORMATION
The device is always delivered with the ventilation opening open. If
a significantly higher gas consumption is detected when using the
CO
2
option, the ventilation opening can be closed if necessary.
Please note that closing the ventilation opening can lead to a lack
of oxygen in the culture and therefore to low growth.
3.4.3 Air Vents
The device has air vents on the right-hand side and the rear of the
casing. When setting up the device, you must ensure that these air
vents remain unobstructed (keeping a minimum distance of 80 mm
to walls or objects on either side) in order to ensure that the exhaust
air can be extracted without obstruction and none of the compo-
nents overheat.
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