Tube Screen Appearance
. .
Maintenance
1. Always clean lens with professional supplies. Never wipe dirt or dust off the lens. You may use
dry, compressed air.
2. Clean the housing with a dry, soft cloth.
3. Store in a dry, well ventilated area. Never store near a heater, air conditioner, or in direct
sunlight.
4. Remove battery when storing for more than two weeks.
Troubleshooting
1. The screen will not glow while in the on position: Check battery. Make sure it is charged and
installed properly.
2. The image fades or disappears completely: If you are in complete darkness, the scope needs
some light. Activate the Illuminator (#6). It is possible that you pointed the device at an intense light
source which might have shut down the unit to protect the intensifier tube. Turn the power off and wait five
minutes before turning it back on.
3. Unable to properly focus: Try adjusting the focus on both the Eyepiece (#1) and the
Objective Lens Ring (#4) Also, try cleaning the lens with professional supplies.
# 47894 4
Light and dark spots caused
by image converter tube may
be visible in the field of view.
These are normal and not considered
imperfections by Image Intensifier
Standards. Most of the distortion
will occur in the peripheral area,
not in the center.
REV 01/03