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10
In the daytime with lens cap on it is normal to observe a fuzzy
image. Switching on the unit device in the daytime is intended
for testing purposes only.
Switching the unit off
After you have finished using the device, turn it off by rotating
switch (1, Fig.1) to OFF position. Put protective lens cap on the
lens. Remove the battery from the battery compartment to avoid
damaging of the device in case of electrolyte leakage.
Operating at night
Take off the lens cover from the lens. Turn on the device
using switch (1, Fig.1). If lighting is insufficient, turn on
the IR illuminator by turning switch (1, Fig.1). The red
indicator (Fig. 2) will go on. IR illuminator is effective
when observing an object located not far from the viewer.
The IR illuminator is visible to anybody with a night
vision device.
Adjusting to individual vision
Turn on the device. Direct the device at an object placed within
8-15 m from the viewer. Obtain the sharpest image possible on
the eyepiece screen by focusing the eyepiece lens and then the
objective lens.
Focusing
To obtain sharp image at other distance adjust the lens focus
leaving eyepiece setting intact. You should be able to obtain a
sharp image for distances from 2-10 m to infinity.