B. time sweep – NTi Audio Minilyzer ML1 User Manual

Page 35

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35

b.

Time Sweep

In the TIME SWEEP mode, ML1 records a user-defined number of

measurements in selectable time intervals.

Fig 3.17 Time Sweep Graph

Scaling refers

to this line

REC / Stop

Control

Arrow Readout

Readout Line

X-Axis Scroll

Indicator

Mean /

Min-Max

Mode

Y-Axis

Zoom Mode

Arrow Mode

Curve

Thereby, the unit simultaneously records the mean and the min-max

values of:

• LEVEL RMS and

• THD+N and

• Frequency

The curves of these measurement functions are stored in individual

graphs. Within a graph, every sample is represented by a single dot

only, thus building the displayed curve.

In practice, the following steps are required / available for the execution

of a time sweep:

• To enter the time sweep mode, select the entry SWEEP → TIME

in the measurement function submenu.

• If required, activate a filter through the corresponding menu.

• To select the curve to be displayed (LEVEL RMS, THD+N or

Frequency) move the cursor to the curve entry, press enter key,

use the arrow keys and confirm with the enter key.

• To select the mean / min-max mode, move the cursor to the

corresponding field, press enter and the arrow keys.

The curve and the mean/min-max mode can also be

selected after the sweep recording is completed.

• Move the cursor to the REC field and press enter.

Measurement Functions

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