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Thor VM3 with Microsoft Windows Embedded Compact 7 User Guide 29
Backup Battery
The Thor VM3 has a permanent Lithium battery installed to maintain time, date and
CMOS setup information for a minimum of 90 days. The lithium battery is not user ser-
viceable and should last four years with normal use before it requires replacement.
Note: The backup battery should only be changed by authorized service personnel.
Fuse
Power Management Modes
On Mode (D0)
When the Thor VM3 is attached to either vehicle power or an external power supply or is
operating from the UPS battery and the power button is pressed, the Thor VM3 is in the
On mode. In this mode, the keypad, touch screen and any attached peripherals such as
a scanner function normally. The display remains on until the backlight timer (if
enabled) expires.
User Idle / Backlight Off Mode (D1)
Backlight is dimmed, but display is readable. The Thor VM3 transitions to this mode
from On after the User Idle timeout period has passed without a primary even occurring.
Warning: Improper replacement or repair could damage the battery,
cause overheating, risk of explosion, and result in injury. The
battery should be disposed of properly. The battery should not
be disassembled or crushed. The battery should not be heated
above 212 ˚F(100 ˚C) or incinerated. The battery must be
recycled or disposed of separately from household waste.
Standard Dock Enhanced Dock
The Thor VM3 uses an 8A time delay (slow blow)
fuse that is externally accessible and user
replaceable. The fuse is located on the back of
the dock. The fuse is accessed by unscrewing
the cap as indicated.
Should it need replacement, replace with same
size, rating and type of fuse:
• Littelfuse 0215008.MXP
• Cooper Bussmann BK1/S506-8-R
• Bel Fuse 5HT 8-R
or equivalent.
Fuse has voltage on it even when power is off.
Always disconnect input power before chang-
ing the fuse.