The CEL633B Sound Level Meter has real-time octave band filters, making ideal for a mixture of environmental noise surveys and noise at work assessments, with detailed hearing protector assessment (octave band method).
The CEL633B sound level meter is available as either Class 1 or Class 2 - the most common for environmental noise measurement and more accurate being Class 1. This meter also has everything needed for occupational noise measurement in line with the 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.
The Class 1 Noise Measurement Kit (CEL633B1-K) is supplied in a tough Peli Case with custom foam to protect the meter, calibrator and accessories. More details...
The CEL633B has a very wide span, covering 20 to 140dB in a single range. This is particularly important when monitoring in an environmental 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.
The meter is fitted with real-time Octave Band Filters. These can be used for basic tonal analysis and are particularly useful when assessing the suitability of hearing protectors for a given noise source.
The CEL633B 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 CEL633 include item ISC020 with your order.
Most environmental noise surveys demand the use of a Class 1 Sound Level Meter that can make repeating measurements, such as the 5 minute LAeq and L90 (background noise), as required by BS4142 and related regulations. We recommend the standard CEL633B1 Class 1 Sound Level Meter for most situations. This meter is also more than adequate to meet the UK and EU noise at work regulations.
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.
|CEL630 Sound Level Meter Datasheet (PDF, 866k)
CEL120 Acoustic Calibrator Datasheet (PDF, 423k)
The Class 1 sound level meter is available alone or as part of a Kit, which includes Meter, Calibrator and Peli Carrying Case.