Larson Davis System 824 - Peak Measurement Range (LOG and ISM modes only)

C-8 824 Reference Manual 9/13/00
NOTE: In low range, all AC outputs will
provide an additional 20 dB of gain.
Pulse range: > 108 dBA
RMS noise floor: < 16 dBA typical (with
PRM902 and 2541 mic)
Reference range: Normal range (0 dB
gain)
Exchange rates: 3, 4, 5, or 6 dB
Sample rate: 48,000 Hz
AC/DC Output (LOG and ISM modes only)
824 Menu 3.5mm Connector Tip 3.5 mm Connector Ring
AC-1 AC-2 Flat AC output Flat AC output with 30dB
gain
AC-1 DC Flat AC output Weighted DC output
AC-1 DC Flat AC output with 30
dB gain
Weighted DC output
AC-2 AC-1 Flat AC output with 30
dB gain
Flat AC output
RMS Measurement Range (LOG and ISM modes only)
Noise
Floor
Low
Limit
High
Limit
Range Pulse
Range
A-WT (high) < 22 < 43 148 > 105 > 108
A-WT (normal) < 12 < 23 128 > 105 > 108
A-WT (low) < 10 < 20 108 > 88 > 91
C-WT (high) < 38 < 48 148 > 100 > 103
C-WT (normal) < 18 < 28 128 > 100 > 103
C-WT (low) < 14 < 25 108 > 83 > 86
FLAT (high) < 40 < 50 148 > 98 > 101
FLAT (normal) < 20 < 30 128 > 98 > 101
FLAT (low) < 15 < 25 108 > 83 > 86