EOTech LWTS Light Weapon Thermal Sight - Manual (Page 38)

2-20
2.18 GENERAL (Continued)
Menu items, sub-menu items, and menu options are
selected (highlighted) by scrolling with the + or - buttons.
Activation of a selected item is accomplished by pressing the
FOV/MODE button.
Activated menu items are saved as follows:
• Through selection and activation of the EXIT menu
item from the Main Menu.
• By entering Standby Mode while the Main Menu or
any sub-menu is displayed.
• Through a normal shutdown of the LWTS.
• By an automatic shutdown of the LWTS just prior to
complete battery drain (see section 2.2).
All menu adjustments and settings made in one FOV are
also reflected in the opposite FOV.
2.19 CALIBRATION (CAL)
At initial power up, after prolonged use, or after transitions
from one temperature extreme to another, a degradation of
the thermal scene may be noticed. This is corrected by
calibrating the LWTS.
The CAL menu item governs the behavior of shuttered
calibrations. When initiating a shuttered calibration, it is
normal to hear the internal shutter closing and opening. The
LWTS is also capable of performing silent, shutterless
calibrations if required by the tactical situation. For more
information regarding shutterless calibrations, see
section 2.27.