Night Optics TG-7 Thermal Goggle/Binocular (30Hz) - Manual (Page 9)

CHAPTER 3. SYSTEM CONTROLS
The NO/TG-7 is very easy to operate: See paragraphs 3-1 to 3-6 below for detailed instructions. Contact
Night Optics USA Inc. at (714)-899-4475 for additional information or assistance.
3-1. Power source:
The electronic circuit is powered by three (3) replaceable CR123 batteries, or external power (6-24VDC).
Rechargeable batteries can be used but will not charge while an external power source is used. Batteries
can remain in the system while in operation using external power. For installation in darkness, be aware
that the positive (+) end (nipple end) of each battery must be inserted first into the battery
compartment. Operation using an external (6-24VDC) power source can be accomplished without
removing the batteries.
WARNING
Ensure that the switch is in the OFF position before installing or removing batteries, and connecting or
disconnecting to any external power source.
WARNING
Ensure that the input power does not exceed 24VDC: use a power converter if needed.
3-2. Activation (IR/pull position) (fig.5a):
• To turn the unit on, turn the switch one click clockwise.
• Pull the switch out (switch is partially spring-loaded) and rotate one additional click clockwise to the IR
position. The Night Optics logo will appear for a few seconds in the display. The active thermal image
will then be displayed.
3-3. Reset/Off-ON-IR/pull Power Switch (fig.5a):
When the switch is in the OFF position, the NO/TG-7 is not energized.
3-4. Focus adjustment (fig. 6d):
First, carefully rotate the objective lens clockwise or counterclockwise to sharpen focus. The user should
be able to focus from a minimum of three feet (3 ft) to a maximum of infinity. Next, focus each eyepiece,
in accordance with your specific optical correction. Close one eye and rotate the eyepiece to adjust for
the sharpest image of the temp reading in the upper right hand corner. Close the other eye and repeat
the process. Finally, slide either or both of the eyepieces towards or away from your nose so that one
distinct image is viewed.
CAUTION
Do not touch the lens face
fig.5
(a)