8.3.5 Cleaning the measuring cell glasses
The measuring cell glasses are made of sapphire glass. The glasses have
an anti-reflective coating on the outside which is very soft. A scratch in
the anti-reflective coating has the same effect as a scratch in the glass
and can affect the measurement.
NOTICE!
The anti-reflective coating is very soft. Cleaning with
standard solvent-free cleaning agents can cause
scratches.
Therefore only use lens cleaning paper from the acces-
sory case.
The measuring cell glasses do not need to be removed
for cleaning. A disassembly is only necessary for an
exchange or if there is heavy soiling.
‘Removing the measuring cell glasses’ on page 45
Great care must be taken when cleaning the measuring
cell glasses. The glasses must only be touched by hand
at the edges.
The following cleaning method for the measuring cell glasses has proven
successful:
1.
Clean the glasses with a spray bottle, filled with alcohol, until no
more major soiling is visible. Then place optics tissue on the inside
of the glass and moisten it with alcohol so that the paper clings to
the glass surface.
2.
Now to "wipe" the surface, just pull the tissue off parallel to the
surface, without pressing the tissue onto the glass.
3.
You may have to repeat this wiping of the glass surface with fresh
tissue, until you can see no more soiling.
4.
Then rinse the measuring cell glasses clean with the spray bottle
and dab them carefully with the dry optics tissue.
8.3.6 Flow plate
The flow plate is made of Viton and must be handled carefully! You can
rinse the flow plate under running water. Brush off any adhesive particles
very carefully with a soft brush.
Cleaning
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