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CEL633C Environmental Sound Level Meter with 1/3 Octaves
The CEL633C Sound Level Meter is for measuring environmental noise in communities and around the perimeter of industrial sites. Fitted with Octave and 1/3 Octave Band Filters, this meter is also suitable for tonal noise analysis.
CEL633C Sound Level Meter
The CEL633C is the top-of-the-range sound level meter and available as either Type 1 or Type 2 - the most common for environmental noise measurement being the more accurate being Type 1. This meter also has everything needed for occupational noise measurement in line with the OSHA, MSHA, ACGIH and EU regulations, making it ideal for anybody involved in both environmental (outside the factory) and occupational (inside the factory) noise.
If the meter is to be left unattended in poor weather conditions then the Outdoor Kit should be used to offer protection against the elements. The Outdoor Kit also includes a rechargeable battery pack for longer term monitoring.
Average Sound Level and Statistical Parameters
The CEL633C has a very wide span, covering 20 to 140dB in a single range. This is particularly important when monitoring in an environment with generally low noise levels and occasionally high ones - for example when cars pass. The most useful parameter when measuring environmental and community noise is the Leq, the average sound level. The meter measures the periodic Leq and also includes five Ln values for statistical analysis of the noise.
Octave and 1/3 Octave Band Filters
The meter is fitted with Octave and 1/3 Octave Band Filter, which are needed for noise sources that may be tonal, such was wind turbines. As well as measuring the Leq and Lmax in each band, the CEL633C meter also measures the statistical parameters, Ln, in each of the Octave bands.
Data Logging and Insight Software
The CEL633C comes complete with data logging capability with measurements stored in the meter's large internal memory.
When connected to a Windows computer using the free CasellaDrive software, the meter acts like a memory stick (shows as a removable drive) so the measurements can be loaded into a spreadsheet or moved to your hard drive for long term storage. There is no need to buy special software.
Due to the large amount of data and the potential complexity of the measurements, we would recommend the use of the Insight software. It simplifies the process of downloading the measurements and stores them in a database, managed by person, place or process criteria. To get the Insight software for the CEL633C include item ISC020 with your order.
Most environmental noise surveys demand the use of a Type 1 Sound Level Meter that can make repeating measurements, such as the 5 minute LAeq and L90 (background noise). We recommend the CEL633C1 Type 1 Sound Level Meter for most situations, including those where tonal noise is an issue.
Most applications demand the use of a Calibrator to check the function of the meter, so we recommend the CEL120/1 Calibrator.
Finally, we also recommend the Insight software to ease download and processing. If unsure, Insight can be easily added at a later date.
Prices and Ordering
The Type 1 sound level meter is available alone or as part of a Kit, which includes Meter, Calibrator and Carrying Case.
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