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The Casella 450.B2 Sound Level Meter Kit offers the power of digital signal processing (DSP) technology in a small lightweight unit. The instrument provides all the features of a broadband meter while
simultaneously offering the ability to measure noise levels in whole or third octave bands across a wide range of frequencies that cover the whole audible range.
The major benefit of the Sound Level Meter Kit is the ease with which it can make full range noise measurements in difficult situations such as those encountered with transient sources. These can include impacts, pass-by testing of vehicles, flyover tests for aircraft, shooting ranges and other similar noise difficult to measure sources. The ultra wide dynamic range of 140 dB means that it is not necessary to worry about selecting the right range as the meter is always on the right range. Noise parameters such as the max, min, average, peak etc. can be enabled or disabled depending upon the exact requirements of the task in hand. Data log the results from 10 msec to 30 minutes to collect history of the level changes.
Kit Includes:
CEL-450.B2 real time octave band ANSI type 2 meter
CEL-110/2 acoustic calibrator
CEL-4672 foam windscreen
CEL-6722 attache style kit case
C6724 pc download cable
CEL-6813 dB23 pc software
4 x AA batteries for meter, 1 x 9V battery for calibrator and operator manuals
Features:
Single 140dB ultra-wide dynamic range
Real time measurements in octaves from 16 Hz to 16 kHz
Real time measurements in third octaves from 12.5 Hz to 20 kHz
Simultaneous measurements of A, C and Z (linear) levels
Max, min, average, peak measurements
Q = 3, 4, 5 or 6 exchange rates available
Data logging intervals as fast as every 10 msec per sample
999 separate runs
Over 800,000 data points
Operating Temp: 12 to 122º F (-10º C to 50º C)
Storage Temp: 0 to 140º F
Includes Certificate of Conformance
Applications:
Long term noise surveys
Reverberation time measurements
All types of general noise measurements
Frequency analysis of transient noise impulses
Workplace noise surveys
Transportation noise studies
ANSI/IEC type 1 & 2 models
Note: Batteries last 15 hours without filter and 12 hours with filter.
Spec Summary:
Octave and third octave
band
measured parameters:
Instantaneous level Lxy,
maximum level Lxymx, minimum level Lxymn,
average level Lxeq, peak level Lxpk
Acoustic accuracy:
ANSI S1.4 (R1997) type 2, IEC 61672:2002, IEC 60651 :
1994, IEC 60804 : 2000, IEC 61260 : Class 0
Frequency response (Hz):
6.3 Hz to 30 kHz for -3 dB down points
Octave band center
frequencies:
11 simultaneous bands with center
frequencies 16 Hz to 16 kHz
Third octave band
frequencies:
33 simultaneous bands with center
frequencies 12.5 Hz to 20 kHz
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Other versions of Casella Octave Band Sound Level Meter Kit are also Available:
Casella 450.B2 Octave Band Sound Level Meter Kit
