ATN PS-27, Руководство оператора

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4-5
Table 4-1. Preventive Maintenance Checks and Services
SEQ.
NO.
ITEM TO
CHECK
CHECKING PROCEDURE
NOT FULLY MISSION
CAPABLE IF:
OPERATIONAL CHECkS
CAUTION:
Activate the PS-27 in daylight with objective lens cap on or
low light conditions.
NOTES:
1. PMCS checks for daylight conditions are listed below.
2. When looking through the PS-27 with objective lens cap
on, observable image has a form of two overlapping zones. It
is not a defect.
15
Function
Switch
Insert battery. Remove
output lens cap. Turn
the switch to the
BATTERY position.
Look for red glow of
indicator.
Red glow absent.
Turn the switch to
ON position. Look for
green glow of indica-
tor.
Indicator green
glow absent.
Close light sensor with
your finger. Look for
image in output lens.
Image absent.
Remove your finger
from light sensor.
Look through output
lens and wait about
10 seconds for image
disappearance.
Image present.