User Guide Rev. E User Manual

Conserving the VTG 300 Battery Life
In order to conserve battery life, batteries should be removed from the VTG 300 if it will not
be used for an extended period of time. For information specific to the VTG 300R charging
system, see the following section Recharging the VTG 300R.
Use these battery-saving features whenever possible to maximize the operational life of the
VTG 300/300R batteries:
• Backlight mode (set to “Off”)
• Enable at power up (set to “Last Used”)
• Power off timer (set to as short an interval as possible)
Battery Operational Life Expectancy (VTG 300 only)
Battery Type Range (hours:minutes)
Alkaline 1:10 to 2:45
Recharegeable (NiMH) 1:20 to 3:10
NOTE: For best results, use high quality alkaline batteries or high current-capacity
(2000 mA or greater) NiMH rechargeable batteries.
Recharging the VTG 300R
NOTE: Prior to using the VTG 300R for the first time, please be sure that the batteries
are fully charged. The VTG 300R batteries are not covered under the Extron
three year warranty.
A fully discharged VTG 300R may take up to eight hours to reach the fully charged state.
The charging process will automatically end after the batteries are fully charged or after
eight hours have elapsed, whichever occurs first
Once fully charged, the VTG 300R may operate for up to five hours of normal use.
Although the VTG 300R may operate with the charger still actively powered and connected
to the unit, the built-in batteries will have a longer life if the charger is used to fully charge
the VTG 300R whenever the VTG 300R is powered off.
The amber charge status LED on the side of the VTG 300R will:
• Blink steadily when the unit is fully charged.
• Light steadily while the unit is being charged.
• Not light if there is no input power to the charging circuit.
NOTES: • During the recharging process, a faint buzzing sound may be heard from the
VTG 300R, the power supply, or both. This is a normal occurrence and should
be no cause for concern.
• The VTG 300R charging circuit features short circuit protection. If a short
occurs, a heat sensitive thermal fuse will cause an open circuit and prevent
damage to the charging system.
• When the batteries become fully charged or the charging time exceeds eight
hours, the charging process will automatically end.
WARNING: During the recharging process, the VTG 300R case should never feel so
hot to the touch such that it cannot be held. Should this unlikely event
occur, please discontinue the recharging process and contact your Extron
representative.
VTG 300/300R • Operation 21