
Nivisys, LLC Rev. 14 Aug 2014
2-4
clockwise direction. Be careful not to smudge the eyepiece
lens or demist shield.
2. Replace the eyecup or shuttered eyeguard.
Figure 2-4 Demist Shield Installation
CAUTION
IF THE DEMIST SHIELD IS WIPED WHILE
WET OR WITH WET LENS TISSUE, THE
COATING WILL BE DAMAGED.
NOTE
IF INCLEMENT OPERATING CONDITIONS
ARE EXPECTED TO EXIST (E.G. SIGNIFICANT
TEMPERATURE CHANGE AND HIGH
HUMIDITY), INSTALL DEMIST SHIELD TO
MINIMIZE EYEPIECE LENS FOG PRIOR TO
EXECUTION OF MISSION.
2.6 19mm Lens Cover Installation:
The UTAM units are issued with the lens covers pre-installed.
Perform the following procedures to install the lens cover on the
19mm objective lens.
DEMIST
SHIELD
EYEPIECE
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