Operation Manual

IMPORTANT INFORMATION
Read prior to activation
You have just purchased a complicated electronic device. To operate it
properly, please read this manual carefully. Here are some common
precautions that must be noted.
NEVER expose the opened objective lens of an active unit in
daylight. (Note: 1st generation units will still remain active for a few
minutes after switching the unit off). At daytime objective lens must be
covered by caps. There is a tiny hole in the cap to provide enough light
for daytime operation. It is allowed to turn on the unit at daytime, but
caps must cover the lenses.
NEVER aim active unit at intense light sources (i.e. lights,
headlamps, campfires, the moon, etc.)
NEVER disassemble the unit
Proper operation of the activation lever: Push it down and hold in
this position. That should provide 30-60 seconds of operation (or more).
Once the screen begins to get dimmer boost the image by releasing the
handle and pushing it down again after a few seconds
(not immediately!).
Pumping the lever up and down rapidly is wrong! That will deactivate the
power mechanism. You will need to wait 15-30 minutes before activating
it again. Doing so repeatedly will cause irrecoverable damage to the
activation mechanism.
The unit is extremely sensitive to bright light. Never use in daytime
with caps off. Even when using in daytime with caps on, the environment
might be too bright. This will cause the unit to shut off automatically, and
it may need up to 1 hour to recover. Doing so repeatedly will cause
irreparable damage to the device.
ATTENTION!
Image quality of the object, which is being observed when an
image intensifier is functioning, depends mainly upon operating
characters of this image intensifier. Due to this fact black spots, which are
inherent in the image intensifier, may be seen in the field of view of a
viewing device. Field of view is shown below.
Central zone
Boundary zone
Periphery zone
Permissible defects, which may be seen in the field of view, are provided
in the following table
Type of
black spots
Immovable
Zone
Central
(circle of diameter
5.5 mm)
Boundary
(circle of diameter
5.5-9.0 mm)
Periphery
(circle of diameter
9.0-11.0 mm)
Entire field
(circle of diameter
11.0 mm)
Size of black spots,
mm
Number of
spots
Moving
Not limited Not limited
Not limited
5
1
10
3
1
1From 0.150 to 0.294
From 0.073 to 0.150
From 0.150 to 0.294
From 0.294 to 0.400
Up to 0.073
From 0.073 to 0.150
From 0.150 to 0.294