9/29/09
System 824 Virtual Instruments
6-5
377B41 microphone which has 44.1 mV/Pa sensitivity.
L
N
Percentiles (Spectral)
The System 824 L
N
Centiles feature provides a display
showing the six Ln values of one selected 1/3 octave filter.
It also displays spectra for the six Ln percentiles.
AC/DC Output
The AC/DC output on the 824 is through the 3.5mm stereo
connector at the bottom of the instrument. This is a 2-
channel output. A mono plug should NOT be used, it will
short the “ring” signal to ground.
DC Output
AC Output (Tip)
Ground (-)(Sleeve)
(+)(Ring)
Summary of Contents for System 824
Page 1: ...Model 824 Precision Sound Level Meter Real Time Analyzer Reference Manual...
Page 2: ......
Page 3: ...I824 01 Rev P Technical Reference Manual Larson Davis Model 824...
Page 58: ...2 18 824 Reference Manual 9 29 09...
Page 120: ...4 24 824 Reference Manual 9 29 09...
Page 194: ...5 74 824 Reference Manual 9 29 09...
Page 284: ...7 80 824 Reference Manual 9 29 09...
Page 312: ...8 28 824 Reference Manual 9 29 09...
Page 330: ...9 18 824 Reference Manual 9 29 09...
Page 366: ...10 36 824 Reference Manual 9 29 09...
Page 460: ...A 4 824 Reference Manual 9 29 09 shown below Both versions work properly with the Model 824...
Page 538: ...A 82 824 Reference Manual 9 29 09...
Page 546: ...B 8 824 Reference Manual 9 29 09...
Page 569: ...9 29 09 C 23 Windscreen Response with Respect to No Windscreen...
Page 596: ...C 50 824 Reference Manual 9 29 09...
Page 630: ...E 10 824 Reference Manual 9 29 09...
Page 638: ...F 8 824 Reference Manual 9 29 09...
Page 648: ...G 10 824 Reference Manual 9 29 09...
Page 672: ...iv xxiv Index Model 831 Technical Reference Manual...