Sound Meter features real-time frequency analyzer.

Press Release Summary:

Designed for safety compliance and exposure monitoring, Model CEL-620B features 20-140 dB range, real-time octave band frequency analysis from 16 Hz to 16 kHz, and full-color LCD that presents overall noise levels in numerical and graphical formats. Up to 100 run results can be stored in internal memory and instrument can be connected to PC using integral USB interface. Unit can digitally measure sound level in factories, refineries, construction sites, or other industrial workplaces.

Original Press Release:

Casella Sound Meter Features Real Time Analyzer to Reduce Test Times

-- CEL-620B octave band sound level analyzer features a single range meter with 11 real time octave bands for all the measurements required for OSHA Survey --

AMHERST, NH, February 18, 2009 -- -- Casella USA, the North American subsidiary of worldwide measurement leader Casella CEL, today launched the CEL-620B wide-range (20 to 140 dB) integrating sound meter featuring real time octave band frequency analysis from 16 Hz to 16 kHz, along with a full-color LCD that presents overall noise levels in numerical and graphical formats.

Designed for safety compliance and exposure monitoring, the new CEL-620B digitally measures the sound level in factories, refineries, construction sites or other industrial workplaces where noise is a concern. In addition to assuring compliance to government regulations, such as OSHA, ACGIH and NIOSH, it helps occupational hygienists in identifying and eliminating noise factors. By displaying the previous one-minutes trend of occurrences, the meter makes it easy to pinpoint significant events when levels change from a lower background value. A thermometer style bar graph assists in reading noise parameters during a run.

Although priced in the mid-range meter class, the CEL-620B has features found in instruments costing hundreds of dollars more. At the top of the list is its capability to measure three broadband levels plus the 11 octave bands over the whole audio range simultaneously in parallel. Based on digital signal processing, this simultaneous recording eliminates the need to go back and re-measure the noise to get the result set required for a thorough survey. In addition, overall test results that are far more reliable and accurate than those from traditional sound levels meters with sequential octave band analysis. Both graphical bar chart and tablular listing displays are available.

Additional features are:

o A, C and Z (Linear) frequency weightings (simultaneously)

o Fast, Slow and Impulse time weightings (simultaneously)

o Q=3, 4 and 5 exchange rates (simultaneously)

o measures instant, maximum and minimum levels

o measures Leq, Lavg(DOD), Lavg(OSHA)

o measures maximum and time average level in all octave bands

o manual measurements using intuitive menus.

Up to 100 run results can be stored in its internal memory for later retrieval. The instrument can be connected to a PC using its integral high speed USB interface and its runs imported into standard office programs such as word processors and spreadsheets.

The CEL-620B is available in ANSI Type 1 or type 2 versions depending on the microphone capsule fitted. It can be purchased seperately or as part of a full measurement kit (CEL-620.B2/K1) with a matching acoustic calibrator and accessories. Data reporting software can be included as an option. For more information, please call 800-366-2966 or email On the web at


Founded in 1799 and headquartered in the United Kingdom, Casella CEL is one of the world's leading suppliers of environmental monitoring technologies. It is an ISO 9001-2000 and ISO 14001 certified company with a focus on the development and manufacture of state-of-the-art environmental monitoring instrumentation. Casella CEL instruments are preferred around the world for personal air sampling, real-time dust and particulate measurement, heat stress measurement, IAQ assessment, weather and rainfall monitoring, personal noise dosimetry, environmental noise measurement and real-time frequency analysis. In 2006, Casella CEL was acquired by Ideal Industries, Inc. For more information, please visit

Casella USA is the North American subsidiary of Casella CEL and is headquartered in Amherst, New Hampshire. Sales, service and instrument recalibrations are carried out in the Amherst office by factory trained engineers. This office covers all sales in Canada, the USA and Mexico. For additional information, please visit

®2009 Casella CEL. All product names and trademarks belong to their respective owners. Information in press releases, including without limitation product, specifications, and contact information, is current on date of the release, and is subject to change without notice. Reseller prices may vary.

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