10
Power Options
Inactivity timeouts automatically turn off the LCD backlight and power after
selectable periods of inactivity to conserve energy and extend battery life (see
Table 1; ( ) indicates default setting).
Note: The backlight requires considerable battery power. Setting the backlight
power-down interval longer than necessary will decrease battery life when the ES3
is battery powered (see Screen Properties
).
Table 1. Power Settings
AC
Backlight
⌐S
ETUP ⌐POWER ⌐A/C ⌐BACKLIGHT
(Never)
30 seconds
1 minute
2 minutes
5 minutes
AC
Power Down
⌐SETUP ⌐POWER ⌐A/C ⌐POWER DOWN
Never
1 minute
5 minutes
(15 minutes)
30 minutes
1 hour
Battery
Backlight
⌐S
ETUP ⌐POWER ⌐BATTERY ⌐BACKLIGHT
5 seconds
10 seconds
(20 seconds)
30 seconds
1 minute
Battery
Power Down
⌐SETUP ⌐POWER ⌐BATTERY ⌐POWER DOWN
15 seconds
30 seconds
(1 minute)
2 minutes
5 minutes
Beep Volumes
Key presses are silent when in test mode, but produce audible ‘beeps’ when in the
menu system. The beep volume can be set via the menu sequence ⌐S
ETUP ⌐BEEP
VOLUMES ⌐KEY VOLUME {Low/Medium/High}. The ES3 also produces an alert
sound when certain errors occur and to indicate the completion of an automatic
test. The volume of the alert can be set via the menu sequence ⌐SETUP ⌐BEEP
VOLUMES ⌐ALERT VOLUME {Low/Medium/High}.