ARTICLE

Accoustic approval

23 January 2013

The compact CEL-120 acoustic calibrator from Casella has achieved Physikalisch-Technische Bundesanstalt (PTB) approval. The PTB is Germany's National Institute for Natural and Engineering Sciences and is the country's h

The compact CEL-120 acoustic calibrator from Casella has achieved Physikalisch-Technische Bundesanstalt (PTB) approval. The PTB is Germany's National Institute for Natural and Engineering Sciences and is the country's highest technical authority for metrology, similar in standing to the UK's National Physical Laboratory (NPL).

Launched a year ago, the CEL-120 is said to be one of the world's smallest acoustic calibrators and is designed to facilitate the highly accurate calibration of sound level meters in the field. Measuring 75mm x 54mm x 37mm, the CEL-120 is fully compliant with IEC 60942:2003 and ANSI S1.40:2006 standards.
 
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