Armasight NYX-7 PRO 4.5x GEN 2+ ID Night Vision Bi-Ocular - Manual (Page 22)

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TABLE 4-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
SEq NO.
LOCATION ITEM TO
CHECK/SERVICE
PROCEDURE
NOT FULLY MISSION
CAPABLE IF...
BEFORE OPERATION CHECKS
1 Completeness Open the carrying case and inventory all items by com-
paring them with the data specified in this manual.
Items are missing.
2 Soft Carrying Case Shake out loose dirt or foreign material. Inspect for tears,
cuts, excess wear or damage to the mounting clips.
3 External Surfaces Inspect for cracks or damage.
Scratches and gouges are OK if operation is not affected. Cracked or damaged.
4 Lens Cap Inspect for cracked, torn, or missing lens caps. Cap is torn or cut.
Cup is not secured to the housing
of the lens.
5 Eyecups Inspect for dirt or dust. Inspect for cracked, torn, bent,
broken or improperly fitted eyecup.
If necessary, clean as per Part 4.4.2.
Cup is torn or cut.
6 Battery
Compartment/ Cap
Inspect for corrosion, moisture, corroded or defective
contacts. Verify that the o-ring is present.
Contacts are damaged or corroded,
or the o-ring is missing.
7 Function Switch Check the switch for operation (without a battery). Switch has no definite stopping
points. Switch knob is broken or
missing.
8 Lenses Inspect optical surfaces for dirt, fingerprint residue,
scratches, chips, or cracks.
Scratches or chips hinder vision
when the Nyx7-4.5x PRO is turned
on. Cracks are present.
Photoreceiver is damaged.
9 Focusing Ring Rotate the focusing ring to ensure free movement. Ring gets stuck or adversely affects
the user’s ability to properly focus
the unit.
10 Eyepiece Rings Rotate the eyepiece rings to make sure the eyepiece is not
too tight or too loose. Range is approximately ½ turn.
Ring gets stuck, is too loose, or ad-
versely affects the user’s ability to
properly adjust the diopter.
OPERATIONAL CHECKS
CAUTION:
Do not activate the Nyx7-4.5x PRO in daylight unless the lens cap is on, or you are operating under dark conditions.
CAUTION:
Do not forget to open the photoreceiver after finishing operational checks.
NOTE:
Daylight checks are described below.
13 Function Switch Install the battery. Turn the switch from OFF to ON. Look
for the green glow in eyepieces (it should appear after a
slight delay), and wait about 10 s for image to disappear.
Look for a flashing red light in eyepiece viewing area.
Image is present.
Red light is flashing.
Close the photoreceiver. Turn the switch from ON to the IR
position. Look for a permanent red glow in the eyepiece
viewing area. Turn the switch from IR to ON position.
Permanent red glow is absent
14 Viewed Image Inspect for any operational defects (refer to Part 4.3: Iden-
tification of Operational Defects).
Shading, edge glow, flashing, flick-
ering, and intermittent operation,
or excessive cosmetic defects are
found.
AFTER CHECKING PROCEDURES
15 Turn the unit OFF. Verify that the green glow fades from
the eyepieces.
Remove the battery.
Return the unit and all accessories to the soft carrying
case.