Name: Larson Davis 824
Brand: Larson Davis
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2-10 824 Reference Manual 9/29/09

Changing the displayed secondary parameter

Step 1 To select the secondary parameter to be displayed

(Leq in this example), use the

uordkeys to

highlight the Leq label.

Step 2 Press the

rorlarrow keys to display the val-

ues of A-weighted SEL, Lmin, Lmax, Lpeak val-

ues. Select “Peak” and press the check

c key.

Changing the frequency weighting of the displayed Lpeak value

Step 1 With the Peak label selected, press the uor

dkeys to highlight the Peak weighting.

Use the

rorlarrow keys to display the A, C or Flat

weighted Lpeak values.

Changing the amplitude range, or input Gain

When using the SSA ID, as in this example, the

measurement range is 80 dB, unlike the ISM and LOG IDs

for which it is 105 dB. In order to optimize a particular

measurement, provisions have been made to select a value

of input gain directly from the graphic display. The gain can

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Larson Davis 824 Specifications

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