2-10 Powering the Model 831 Model 831 Manual
Insufficient External Voltage
If the external power source is operating the instrument, i.e.
there is no USB or internal battery power available, and is
less than about 10.8 Volts, the display shown in FIGURE 2-
10 appears with the grey box inside the battery symbol
flashing on and off every second.
FIGURE 2-10 Insufficient External Voltage
If the power fault condition is not alleviated within 2
minutes, the instrument powers off. If a sufficient power
supply is provided for more than 10 seconds, i.e. USB or
Main power is connected, the instrument proceeds to turn
on.
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