Yukon RANGER PRO 5x42 - Manual (Page 6)

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OPERATING INSTRUCTIONS
Remove the lens caps from the objective lens (4) and from the long-range IR-illuminator (5).
Press the button marked ON (6) to turn on the device. A stable green light indicates that the device is ready for use. A
flashing green light indicates that the battery power level is low. A flashing red light indicates that the battery is empty.
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Locate an object within 20 to 30 meters.
Rotate the eyepiece (7) until you
see the frame of the display and black fine grid on it. Adjust the sensitivity of the
device (visually it is determined as image brightness) by turning the adjustment wheel (11).
clearly
Rotate the objective (4) until you see a sharp image of the object. When you turn the device on, the stealth short-range
IR-illuminator is turned on automatically. Press the «IR» button (8) to turn the main long-range IR-illuminator on.
Choose the operation modes of the IR-illuminator: press and hold the «+» (9) or «-» (10) buttons to increase or decrease
respectively the power of the IR-illuminator. The use of the IR-illuminator in the optimal mode prolongs operating time. If
the device is focused on an object closer than 15 metres, the emission spot of the main IR-illuminator (bright light circle)
will be shifted to the right side of the display.
When changing the viewing distance, try to see a sharp and high-quality image by rotating the objective (4) and the
sensitivity adjustment wheel (11) and by changing the operating modes of the IR-illuminator. Do not rotate the eyepiece
(7) the device is already individually adjusted.
Plug the output video cable into the RANGER PRO's video-output jack (12) to transmit the observed image to an
external LCD monitor. When the RANGER PRO 5x42 is coupled with video equipment, the observed image can be
recorded.
To connect the RANGER PRO 5x42 to a vehicle's 12V auxiliary power port, plug the car adapter into the RANGER
PRO’s power input jack (13) and connect the other end of the cable to the vehicle's auxiliary power port.
To connect the RANGER PRO
to a household outlet, use a variable power switching adapter. 5x42
Be careful, observe the polarity shown on the inner side of the battery cover.
NOTE. When the batteries are in the container and the external power source is turned on, the device operates
on the external power source. If you unplug the external power source, you have to press the «ON» button to
make the device operate on the batteries.