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EqUIPMENT lIMITATIONS
to avoid physical and equipment damage when using the atn PS-7,
carefully read and understand the following equipment limitations.
• The equipment requires some night light (moonlight, starlight,
etc.) to operate. the level of equipment performance depends
upon the level of light.
• Night light reduces by passing through the clouds, while operating
under trees, at building shadows, etc.
• The equipment is less effective when viewing into shadows and
other darkened areas.
• The equipment is less effective when viewing through the rain,
fog, sleet, snow or smoke.
• The equipment will not "see" through the dense smoke.
• Has protection system, which cuts off the image intensifier when
ambient light level exceeds the limit of 40 lux during a 10 seconds
period.
• Under starlight conditions low contrast environments (such
as snowcovered territory, sandy deserts, large bodies of water
or grassy hills) degrade visibility thereby disguising or masking
changes in terrain.
• Under too low-light conditions the goggles looses some of the
resolution that it has under full moon.
b
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