Maintenance Of The Protective Window - Primes FocusParameterMonitor FPM 60 Original Instructions Manual

14.4

Maintenance of the Protective Window

To protect against contamination, the FPM is supplied with a protective glass in the beam path. The protective
glass is a wearing part and can be replaced if necessary.
Slight soiling of the protective glass can be carefully removed when cooled down. In case of heavy, non-
removable contamination or damage, the protective glass must be replaced by a new one. Either only the
protective glass or the protective glass cartridge including the protective glass can be replaced.
The protective window is coated with an anti-reflection coating and has low reflection values of less
than 1%. To avoid increased reflection values, use only original PRIMES protective windows.
CAUTION
Burns due to hot components
The absorber under the protective window is hot after a measurement! Unintentional touching
while changing the protective window can lead to burns.
 Do not change the protective window/protective window cartridge immediately after a measurement.
 Let the device cool down for an adequate period of time. The cooling time varies depending on
the laser power and the irradiation time.
NOTICE
Damaging/destroying the device
Contamination and fingerprints on the protective window can lead to damage or shattering or
splintering of the protective window during measuring operation.
 Only replace the protective window in a dust-free environment.
 Do not touch the protective window.
 When exchanging the protective window wear powder-free latex gloves.
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FocusParameterMonitor FPM
Revision 06 EN 02/2023