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6.5 Replacement of the
germanium window
Germanium glass has two colours. Inside the housing
there is an anti-reflection coating that changes
colour (depending on the direction of vision). On the
outside, on the other hand, there is a scratchproof
coating to make the glass dark grey in colour. To
install the new glass refer to the next figure.
Fig. 9
The housing has a flange with a germanium window
with a diameter of 55mm and 2mm thick.
The graph shows the transmittance spectrum for the
window.
Ge 2 mm, AR/AR+DLC
80
60
40
20
0
8
9
7.5
8.5
9.5
Fig. 10
MNVCNTM_2021_EN
10
11
12
13
10.5
11.5
12.5
7 Cleaning
7.1 Cleaning the window
Avoid ethyl alcohol, solvents, hydrogenated
hydrocarbide, strong acid and alkali. Such
products may irreparably damage the
surface.
We recommend using a soft cloth with neutral soap
diluted with water or specific products to clean the
glasses lenses.
The device should be cleaned using a damp cloth;
compressed air must not be used.
8 Information on disposal
and recycling
The European Directive 2012/19/EU on Waste
Electrical and Electronic Equipment (WEEE) mandates
that these devices should not be disposed of in the
normal flow of municipal solid waste, but they should
be collected separately in order to optimize the
recovery stream and recycling of the materials that
they contain and to reduce the impact on human
health and the environment due to the presence of
potentially hazardous substances.
The symbol of the crossed out bin is marked
on all products to remember this.
The waste may be delivered to appropriate collection
centers, or may be delivered free of charge to the
distributor where you purchased the equipment at
the time of purchase of a new equivalent or without
13.5
obligation to a new purchase for equipment with size
smaller than 25cm (9.8in).
For more information on proper disposal of these
devices, you can contact the responsible public
service.
7
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