ChemoMetec NucleoCounter, User Manual, Page: 50 / 76

7 Maintenance of NucleoCounter
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7 Maintenance of NucleoCounter
Cleaning on a regular basis of the NucleoCounter is recommended
in order to protect its surface and assure the quality of the
collected images.
7.1 Cleaning
Depending on the environment in which the NucleoCounter is
operated it is suggested that regular cleaning of the cabinet
is carried out. When cleaning the cabinet it is recommended to
use a soft moist cloth and gently wipe the surface. Any
contamination, which does not come off immediately, should be
rubbed gently with a cloth wetted with mild detergent. Never
use organic solvents or aggressive detergents to clean the
exterior of the NucleoCounter as this might damage the surface.
7.1.1 Cassette insertion area
The cassette insertion area and the optical parts inside the
NucleoCounter should be properly protected against dust and
other contaminants. Therefore, great care must be taken to
ensure that the lid covering the cassette insertion area is
closed when cassettes are not being loaded into or removed from
the NucleoCounter. If the insertion area becomes contaminated
it should immediately be cleaned with a clean, dry and dust
free cloth.
When cleaning the cassette insertion area, great care must be taken against
introducing any liquid or dust into the insertion slit of the NucleoCounter. Any liquid
that enters the interior of the NucleoCounter can da mage the optical parts and thus
compromise the quality of the cell counts.
7.1.2 Optical elements
An object on the surface of an optical component can influence
the collected image. A contaminant will normally be visible as
a faint object in the image. Since it is also possible that
such contamination is on the surface of the cassette,
only objects,
which are stationary in all images, are possible contaminations of the optical
system
. An example of a relatively large contamination is given
in Figure 25.