Larson Davis SoundAdvisor 831C Reference Manual page 89

9.4.3 Using Analog Power-Save Mode
9.4.4 Setting the Backlights On Period
9.4.5 Enabling or Disabling the Keypad Backlight
SoundAdvisor Model 831C
Pressing the Power button
in when the Auto-Off time expired.
On your 831C, go to Tools
the Power tab displays.
Power-Save mode is indicated by the sleep icon
mode can significantly conserve battery power, since it shuts down the meter's analog
circuitry and signal processing activities.
From the Power-Save drop-down menu, select the period the instrument should stay
powered after a measurement has stopped.
The analog circuitry, including power to the preamplifier, shuts down when the instrument
is stopped for the period you chose. Performing a calibration, a reset, or starting a
measurement restores power. The meter can run the measurement after a short 10 second
power-up.
On your 831C, go to Tools
until the Power tab displays.
Backlights On is the duration the 831C display is back lit after the last key press. Selecting
Always slightly increases power consumption.
On your 831C, go to Tools
*
) until the Power tab displays.
The blue LEDs under the keypad can be enabled or disabled according to your preference.
The Red LED behind the STOP/STORE button, and the green LEDs under the RUN/PAUSE
and ON/OFF buttons are always enabled.
Increasing the back light brightness significantly increases the meter's power
TAKE NOTE
consumption, which decreases battery life.
Additionally, you can select the LCD screen back light intensity as a percentage.
When battery life is below 10%, the 831C overrides this setting and downgrades the LCD
Brightness to 50%. If the user-defined setting is below 50% brightness, it remains the
same.
0
returns the instrument and the display to the state it was
3

System Properties, then press the right softkey (
3
 System Properties, then press the right softkey (
3

System Properties, then press the top-right softkey (
Editing Power Settings
. When the meter is not running, this
//*
) until
//*
)
//
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