Turn The Soundadvisor On; Low Power At Boot-Up; Turn The Soundadvisor Off; Power Display - Larson Davis SoundAdvisor 831C Reference Manual

Sudden Loss of External Voltage
External Power Icon
FIGURE 3-5 External Power Icon

3.5.3 Low Power At Boot-up

3.6 Turn the SoundAdvisor ON

3.6.1 Turn the SoundAdvisor OFF

3.6.2 Power Display Pages
SoundAdvisor Model 831C
when powering is lost do to low solar situation or after an extended
power outage.
If the external voltage is suddenly lost, for example when the external
supply is disconnected or when mains power fails and there is no
external battery, the SoundAdvisor will continue to run on internal
batteries if they are present and in good condition. If battery power is
not present, the SoundAdvisor will immediately switch to an internal
recovery battery and power down safely.
Without internal batteries, the external power is supplied through the
USB connector, the battery icon is replaced with the External Power
icon, and the meter is no longer using batteries to power.
If your meter has fully charged NiMH batteries and plugged in to a
power source, this icon will indicate that it is using power from the
external source, as well as not charging and not depleting any power
from the batteries.
When the SoundAdvisor boots up a power check is performed. If the
supplied power is too low, then a low power icon will display over top
of the first display. For more information see Table A.2, "Low Power At
Boot-Up".
After the SoundAdvisor is fully powered, either with an external power
source or fresh batteries installed, it is time to power the meter on.
Press the ON/OFF button 0 on the meter until the screen flashes and
the green LED light under the button turns on; It will take a second.
The SoundAdvisor can be turned safely OFF after accessing the Power
Control Page, see "Power Control Page" on page 3-9.
Alternatively, pressing and holding the power button for three seconds
will begin a safe shut down. Pressing and holding the power button for
10 seconds will force a hard shutdown.
There are several pages of power control and display.

Turn the SoundAdvisor ON

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