Casio PV-S6100 - Manual (Page 6)

4
About the EL backlight
• The PV Unit is equipped with an EL backlight that allows easy viewing
of display contents in a theater, or anywhere else where lighting is dim.
• Tap the icon to turn on the EL backlight and illuminate the display
screen.
• You can use the procedure on page 23 to specify how long the EL
backlight stays on (approximately 15 or 30 seconds).
• Note that EL backlight operation consumes large amounts of electrical
power and can greatly shorten battery life.
• Note that frequent or extended use of the EL backlight shortens battery
life.
The following shows how backlight use affects battery life under controlled
test conditions*. For comparison with the values below, battery life is
normally approximately 80 hours with 55 minutes of continuous display
only and 5 minutes of processing operation per hour in the Contacts Mode
when no backlight operation is performed.
* Test Conditions
•
“Battery Life” is the number of hours before battery failure when
the unit is left on (5 minutes of a processing operation and 55 minutes
of continuous display only (no processing operation) per hour in the
Contacts Mode, plus the backlight operation described below). The
above values assume ambient temperature of 20°C, starting with a
fresh set of new batteries.
• “Backlight Operation” is the number of minutes the backlight is
turned on per hour during the display only (no processing operation)
period.
• Be sure to use alkaline batteries. Manganese batteries provide very
short battery life.
Backlight Operation Battery Life
3 minutes per hour Approximately 60 hours
15 minutes per hour Approximately 30 hours