NTi Audio XL2 Sound Level Meter - Manual (Page 67)

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FFT Analysis + Tolerance
6 Time Weighting
Offers selectable time weighting of 0.1, 0.2, 0.5, 1.0 sec-
ond as well FAST (125 ms) and SLOW (1 second). Applica-
tions:
Short Time
Weighting High resolution in time with minimum
averaging
Long Time
Weighting Low resolution in time with longer aver-
aging
7 Run Indication
The run indication shows the measurement status running,
paused or stopped. Various measurement settings are
locked during ongoing measurements, such as changing
the input ranging or the preset measurement time.
For passed/failed measurements with the Spectral Limits
option the run indication may display A for a preset auto-
mated level trigger.
8 Actual Measurement Time
Counts actual measurement time in hrs:min:sec. Supports
setting of time modes: continuous and single.
Timer Mode Continuous
(applicable for standard measurements)
All values are recorded and monitored continu-
ously after starting a measurement with start
.
The actual measurement time is shown.
Timer Mode Single
Automatically stops the measurement after the
pre-set measurement time.
Set the required measurement time. •
Start the measurement • .
9 Preset Measurement Time
Adjustment of preset measurement time for single timer
setting.