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T QUASAR Flare Monitors Operation Manual Maintenance • 52
9.2 Cleaning the Optics
The front window in the explosion-proof housing should be cleaned monthly. After removing
the air purge tube, use facial tissue dipped in rubbing alcohol (isopropyl 70%) to clean the
window.
The optical system of the QUASAR M8100-EXP consists of a lens, an eyepiece and a specially
coated front surface mirror mounted on a special insert. The optics of the
QUASAR M8100-EXP are located within the electro-optical package and will remain clean under
normal conditions, provided the enclosure remains sealed at all times with o-rings in place.
LumaSense does not recommend cleaning optics other than the objective lens. A complete
cleaning requires disassembly of the optical train.
To clean the objective lens, remove the electro-optical package from the explosion-proof
enclosure. Use facial tissue dipped in rubbing alcohol (Isopropyl 70%). If it is especially dirty, use
a lens cleaning solution. Press softly or the lens may become loose or dislodged. Blow off lint,
and then replace the electro-optical package in the explosion-proof housing.
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