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4. Insert the battery container (3) back into the battery compartment. Make sure the battery container is 
re-inserted properly  particularly watching for the orientation of the battery container contacts. 
5. Return the battery compartment cover (1) to its original position. 

Attention! It is strongly recommended to use only SINGLE-TYPE batteries otherwise the 
device's operating time drastically decreases. 
 

 

 
OPERATING INSTRUCTIONS 

 
1. Remove the lens caps from the objective lens (4) and from the long-range IR-illuminator (5). 
2. 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.  
3. Locate an object within 20 to 30 meters. 
4. Adjust the sensitivity of the device (visually it is determined as image brightness) by turning the 
adjustment wheel (11). 
5. Rotate the eyepiece's lever (7) and the objective (4) until you see a sharp image. When you turn the 
device on, the auxiliary short-range IR-illuminator is turned on automatically. Press the «IR» button (8) 
to turn the main 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. 
6. 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's lever (7)  the device is already individually adjusted.  
7. Plug the output video cable into the RANGER's video-output jack (12) to transmit the observed 
image to an external LCD monitor. When the RANGER is coupled with video equipment, the 
observed image can be recorded.  
8. To connect the RANGER to a vehicle's 12V auxiliary power port, plug the car adapter into the 
RANGER's power input jack (13) and connect the other end of the cable to the vehicle's auxiliary 
power port.  
9. To connect the RANGER to a household outlet, use a variable power switching adapter.   
 

Summary of Contents for RANGER 28041

Page 1: ...th a special connector that allows RANGER to be powered by a 12 volt car outlet It operates for up to 10 hours using 6 AA batteries The RANGER has an ergonomically designed water resistant durable plastic body that helps protect the unit and creates versatility Yukon s RANGER is ideal for the following applications Surveillance Hunting camping Sports and night navigation and observation Commercial...

Page 2: ...is turned on automatically Press the IR button 8 to turn the main 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...

Page 3: ...IR button 8 corresponds to the value previously set with the 9 or 10 buttons Do not connect stray devices headphones for example to the Video port This may put the device out of action When focusing on the display you can see the fine black net 7 light or dark spots on the whole field of view in the image plane are acceptable The main IR illuminator can not be focused CLEANING Do not scratch the e...

Page 4: ...tery container correctly 2 IR Illuminator fails to activate The button 10 is in its extreme position The sensitivity adjustment wheel 11 is in its extreme position Press the 9 button and hold for 5 8 seconds Adjust sensitivity of the device 3 Poor image quality Check the objective lens and eyepiece making sure they are focused according to the instructions listed in section OPERATING INSTRUCTIONS ...

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