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15
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= Wi-Fi – off (default password)
= Digital zoom – off
= PiP – off 
= Colour palette – White Hot 
= Unit of measurement - metric
Warning: date and time settings, default pixel map 
and remote control activation are not restored. 
Lens 
selection
Lens selection  is used  when replacing  objective 
lenses  for  the  models:  HELION  XP28;  HELION 
XP38; HELION XP50. 
Selection of the lens type is important for the correct 
display of  the optical  magnification and  adequate 
operation of the Stadiametric rangefinder.
= Replace the objective lens: to do this, move the 
latch  (13)  backwards,  turn  the  lens  counter- 
clockwise all the way and remove the lens. 
= Install a new lens, move the latch backwards and 
move clockwise until the latch snaps. 
= Enter the  submenu with a short press  of the M 
button. 
= With  a  short  press  of  the  UP/  DOWN  buttons 
select the desired lens: 28; 38 or 50.
= Confirm  selection  with  a  long  press  of  the  M 
button. 
= Enter the  submenu with a  short press of the M 
button. 
= Select icon        with a short press of the M button. 
= A marker (H)           appears on the left side of the 
display. 
= On  the  right  side  of  the  display  appears 
“magnifying glass” (G) – a magnified image in a 
frame with a fixed cross      , designed for easier 
detection  of  a  defective  pixel  and  to  match  the 
pixel  with  the  marker,  horizontal  and  vertical 
arrows  for  X  and  Y  axes  (I)  showing  marker's 
movement.
+
The defective pixels on the sensor may proportionally increase in size 
when digital zoom is activated. HELION thermal imagers allow the user 
to repair defective pixels on the detector using a software-based method 
or to abort deletion. 
G
H
I
x=95
y=99
Reset
Restore default settings
= Enter the Reset submenu with a short press of the 
M (9) button. 
= With  a  short  press  of  the  UP/  DOWN  buttons 
select “Yes” to restore default settings or “No” to 
abort. 
= Confirm  selection  with  a  short  press  of  the  M 
button.
= If  “Yes”  is selected, display  will  show  “Return 
default settings?” and “Yes” and “No” options. 
Select “Yes” to restore default settings. 
= If  “No”  is  selected,  action  is  aborted  and  you 
return to the submenu. 
The  following  settings  will  be  restored  to  their 
original values before changes made by the user: 
= Operating mode of video recorder – video 
= Operating mode – Forest 
= Calibration mode – automatic 
= Language – English
Defective 
pixel repair
Defective pixel repair
When operating a thermal imager, defective (dead) 
pixels (bright or dark dots with constant brightness) 
may become visible on the sensor. 
= Hold  down  the  M  (9)  button  to  enter  the  main 
menu. 
= Select  submenu  with  UP  (8)  and  DOWN  (10) 
buttons.
= Press briefly the M button the enter the submenu.
= Turn the microphone on/off with a short press of 
the M button.
= With the microphone on, you will have audio track 
in your video. Microphone is off by default.
Microphone 
Off
Remote
Control
Remote control (bought separately)
Before  operating  the  remote  control  (RC), 
remember to activate it as follows:
= Press the  M button, countdown starts (30 sec), 
within which hold down for two seconds any RC 
button.
= If  activation  is  successful,  the  message 
«Connection complete» appears      . 
= If error occurs the message «Connection failed» 
appears       . Repeat the procedure. 
= The RC is activated and ready for use.
= To unlink the RC, press the М button, wait for the 
countdown  to  expire  without  pressing  any  RC 
button for 30 sec. 
= All remote controls previously linked to your sight 
are now unlinked.