Casella CEL CEL-281 - Manual (Page 133)

Stored & displayed parameters:
Level information:
Sound pressure level (dB) with Fast time weighting,
Sound pressure level (dB) with Slow time weighting,
Sound pressure level (dB) with Impulse time weighting,
Maximum level (dB) with Fast time weighting,
Maximum level (dB) with Slow time weighting,
Maximum level (dB) with Impulse time weighting,
Time averaged level (dB) with 4 different averaging periods,
Noise exposure (Pa
2
h).
Statistical information:
Statistical noise distribution of sound pressure level as
Cumulative % and Probability % (dB) with both Fast &
Slow time weightings,
Statistical noise distribution of maximum level with
3 different intervals as Cumulative % and Probability %
and (dB) with both Fast & Slow time weightings,
Statistical noise distribution of time averaged level as
Cumulative % and Probability % and (dB) with 3 different
averaging periods.
Memory capacity: 14 hours*.
Time history information:
Noise profiles of time averaged level (dB) with 4 different
exchange rates "Q",
Noise profiles of maximum level (dB) with 6 different
measurement periods.
Memory capacity: >20 000 period values.
Noise dose information:
%Dose with 4 different exchange rates "Q",
6 different criterion levels, and 5 different threshold levels,
Projected % Dose with 4 different exchange rates "Q",
Page 124 - CEL-281 Operator's Handbook
Technical Information_