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opERATIon
pREpARATIon foR opERATIon
For checking the device in daytime conditions or in a light room:
1. make sure the battery is installed as indicated on the night Cougar Lt body.
2. make sure the lens cap is attached to the front lens.
3. turn on the device by pushing the button. after this you can start observing scene through the ocu-
lars. the greenish-lit screen of the image tube means that the device is working normally.
4. Direct the night Cougar Lt at an object located 10-20 yards/m from you and obtain a sharp image by
turning eyepieces.
5. turn off the device by pushing the button again.
CAUTION: Never use your night vision device in daylight areas without the lens cover on! Never direct
the lens to the bright light!
opERATIons In ThE dARk condITIons
CAUTION: Bright sources such as light of fire, headlights, searchlights, etc. can damage the Night
Cougar LT. Avoid exposing the Night Cougar LT to these types light sources.
For start the operations in dark conditions:
1. make visual estimation of the illumination level in the viewing area is less than 1 lux (late twilight sky
conditions).
2. remove the front lens cap and place it over the lens housing.
4. push the button. a green glow will appear in the eyepiece (after a slight delay).
5. observe the scene and adjust focus.
focusIng
to focus the night Cougar Lt, first you will need to adjust
the diopters. Simply turn the diopter clockwise until it stops.
then, while looking through the diopter at an object, slowly
turn the diopter back counter clockwise until the grain in the
image is sharp.
NOTE: We suggest that you focus the diopter during daylight
with the filter on.
next focus the front lens until the image and the grain are
both sharp. when you are in low-light conditions and the
daylight filter is off, you may focus the front lens to receive
sharp image, the diopter should not be adjusted.
NOTE: The front lens should be readjusted as you view
objects at different distances.
IR IllumInAToR opERATIon
Infra-red illuminators, or Ir illuminators, are common to
night vision. the Ir light greatly enhances the performance
of the night Cougar Lt while remaining almost totally invis-
ible to the naked eye.
to turn the Ir on push the Ir button. to turn the Ir off push
the Ir button again.
NOTE: It is important to remember that the IR illuminator is
simply an infra-red light source, and like any light source it
may lose its effectiveness over a great distance.
shuT-down opERATIons
1. push the power button to turn the night Cougar Lt off. the green of the image intensifier tube glow
will fade to black.
2. replace the protective cap on the front lens.
3
DIoptErS aDJUStmEnt
FoCUS
aDJUStmEnt
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