Open the lens cap (1).
Press briefly the “ON/OFF” (9) button to power on the unit, hold down the 
“MODE” (12) button for two seconds to enter the menu. 
Use the navigation buttons “LEFT” (10) and “RIGHT” (11) to select item 
Cal. Select mode M. Press “MODE” to confirm. To exit the menu, press and 
hold “MODE” for two seconds or wait 10 seconds for automatic exit.
Close the lens cap. Press the “ON/OFF” button to calibrate. The image will 
freeze for 1-2 seconds. Then open the lens cap. Calibration is completed.  
If you  see image  flaws (such as frozen image,  vertical  stripes  etc.)  re-
calibrate the unit with the lens cap closed.
 
Power on the unit, open the lens cap. 
Hold down the “MODE” (12) button for two seconds to enter the menu. 
Use the navigation buttons “LEFT” (10) and “RIGHT” (11) to select item 
Cal. Select mode H. Press “MODE” to confirm.
Press the “ON/OFF” (9) button to calibrate. The image will freeze for 1-2 
seconds and you will hear the sound of the internal shutter. Calibration is 
completed. 
Stage 3. Mounting CORE unit on a day device
Insert  firmly  the  CORE  unit with  mounted  attachment’s  eyepiece into the 
cover  adapter  so  that  the  pins  in  adapter’s  body  enter  grooves  of  the 
attachment’s eyepiece. Turn the CORE unit counterclockwise to hear a click.
Tighten the screw (20) with the hex-nut wrench, to ensure that when turning 
the lever, the adapter with insert tightly fits the objective lens of day device.  
Mounting eyepiece on CORE unit
To mount the eyepiece on the unit, make sure that the lower salients (C) of the 
eyepiece match the lower yellow salients (Fig. 8).  
Insert the eyepiece into the unit’s body and turn the locking ring (5) clockwise. 
10
11
Fig.7
Pic.8
correct
wrong
С
Having turned the unit on, please make sure that the line of horizon 
of you day device is parallel to the upper and lower edges of the 
display of the CORE monocular. 
It is recommended that you degrease the objective lens of your day device 
and the inner side of the insert before installing the cover adapter. 
In  automatic  calibration  mode  the  thermal  imager  calibrates  by  itself 
according  to  the  software  algorythm.  The  detector  (microbolometer)  is 
closed  with the shutter  automatically. User assisted  calibration with the 
“ON/OFF” button is allowed in this mode.  
Power on the unit, open the lens cap. 
Hold down the “MODE” button for two seconds to enter the menu. 
Use the navigation buttons “LEFT” (10) and “RIGHT” (11) to select item 
Cal. Select mode A. Press MODE to confirm.
At the moment of the automatic calibration the image will freeze for 1-2 
seconds and you will hear the sound of the internal shutter. 
Note:  time  intervals  between  calibrations  depend  on  the  heat  of  the 
detector. The unit may require calibration more frequently on activation.
Focusing and adjusting the image
Open the lens cap (1).
Adjust  sharp  image  of  icons  on  the status  bar by  turning  the eyepiece 
diopter adjustment ring (4).
To control display brightness, press briefly navigation buttons - “LEFT” (10) 
(decrease) and “RIGHT” (11) (increase). Selected brightness level (from 0 
to 20) appears next to icon    in the top right corner of the display.
OPERATION. CALIBRATION.  
10
Manual (silent) calibration mode 
Power on the unit with “ON/OFF” (9) button. In case of low battery icon  
will start flashing on the status bar.  
Do the image calibration. Calibration levels background temperature of 
the microbolometer and eliminates image flaws.ee calibration modes are 
available: manual (M), semiautomatic (H) and automatic (А). 
Semiautomatic calibration mode
Automatic calibration mode