9/13/00 C-9
NOTE: Ranges are in dBSPL using a
typical 2541 microphone with a sensitiv-
ity of 44.5 mV/Pa. A 2540 low sensitivity
microphone produces high limit values
approximately 10.0 dB higher.
NOTE: Ranges are in dBSPL using a
typical 2541 microphone with 44.1 mV/
Pa sensitivity. The range is measured
between a low limit of peak error > 0.5
dB and a high limit of overload.
Peak Measurement Range (LOG and ISM modes only)
Low Limit High Limit Range
A-WT (high) 73 148 75
A-WT (normal) 53.0 128.0 75.0
A-WT (low) 53.0 108.0 55.0
C-WT (high) 73 148 75
C-WT (normal) 53.0 128.0 75.0
C-WT (low) 53.0 108.0 55.0
FLAT (high) 80 148 68
FLAT (normal) 60.0 128.0 68.0
FLAT (low) 60.0 108.0 48.0
SSA Mode Specifications (IEC 61260 Class 1)
Overall time weighting: Slow, Fast, Impulse,
TWA and Peak
1/3 octave filter time
weighting:
Slow, Fast
Dynamic range: > 93 dBA (overload to
noise floor)
Linearity range: > 80 dBA
Pulse range: > 83 dBA
RMS noise floor: < 33 dBA typical with
PRM902, 2541 micro-
phone, and 0 dB gain
Reference level range: 0 dB gain
Exchange rates: 3, 4, 5, or 6 dB
Sample rate: 51,200 Hz
1/3 octave band fre-
quencies:
12.5 Hz - 20 kHz
Filter integrated
response:
≤
±0.15dB for all filters.
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