Newcon Optik nvs 7-4x User Manual

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13 
 
Solid red dot indicates that the IR illuminator is on.  
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) to OFF position. Put protective lens cap  
(ex.NVS7-8x, 7) 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 (6). Turn on the 
device using switch. If lighting is insufficient, turn on the 
IR illuminator (1) by turning switch. The red indicator 
(Fig. 1) 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 
8-20 m from the viewer. Obtain the sharpest image possible on 
the eyepiece (4) screen by focusing the eyepiece lens (3) and 
then the objective lens (2).