3-8 Summary of Displays and Icons Model 831 Manual
The external power connection icon appears when the
Model 831 is powered from an external power supply or via
the USB port.
Measurement Name
This is the file name to be used for the data file.
Stability Indicator
Presented in the form of an analog display, this dynamic icon
indicates the trend in the measured overall Leq, indicating if
the measured signal is rising, decaying or holding stable.
The icon appears in the first section of the Live, Overall and
Current displays, and also in a window that appears during a
sound level calibration.
Run Time
This is the amount of time the measurement has been
running.
Input Overload Icon
When a signal from the preamplifier exceeds the calibrated
input range of the Model 831, the Input Overload Icon will
appear. While the overload is present, the icon will flash.
If a measurement is running and an overload occurs, the icon
shown below will flash during the overload.
When the overload has been removed, the icon will still be
present (not flashing) to indicate that an overload has
occurred during the measurement. A reset will clear the icon
from the display.
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