ACT THE-14, Руководство оператора

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2. Rotate the eyecup into proper viewing position. Adjust for
best fit. The eyecup must seal around your eye and prevent
the green glow from escaping.
2.5 Demist Shield Installation (Optional):
Perform the following procedures to install the demist shield on
the eyepiece lens.
1.
Carefully remove the eyecup.
2. Carefully remove eye cup retainer ring.
3. Screw in the demist shield and eye cup retainer ring. Be
careful not to smudge the eyepiece of demist shield.
4. Replace the eyecup.
CAUTION
IF THE DEMIST SHIELD IS WIPED WHILE
WET OR WITH WET LENS TISSUE, YOU WILL
DAMAGE THE COATING.
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 Sacrificial Window Installation:
Perform the following procedure to install the sacrificial
window onto the objective lens assembly.
CAUTION
IF ADVERSE OPERATING CONDITIONS
(BLOWING DUST OR SAND) ARE EXPECTED
TO EXIST, ATTACH THE SACRIFICIAL