IEC 60651 PDF

Buy IEC Ed. Sound level meters from SAI Global. Find the most up-to-date version of IEC at Engineering A sound level meter is used for acoustic measurements. It is commonly a hand- held instrument .. Both of these were replaced by IEC , later renamed IEC , while the linear integrating meters were initially described by IEC , later.

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Unfortunately many of these posts are long out-dated and as a result a little inaccurate. To combat this, we have put together this small table below that will hopefully provide you with some clarity to the current standards in use.

The main thing you should be aware of is that the most recent standards for sound level meters are BS EN For personal sound exposure meters such as dosemeters, BS EN This information was correct as of We aim to keep this information as up-to-date as possible so if you find any information inaccurate please contact our development team on media atp-instruments.

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If you would like to know more about 660651 check out our article on the The Difference between Type and Class for Sound Meters.

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Each segments affects sound meters in slightly different ways and together they detail the performance requirements and testing methods of instruments claiming to conform to the standard.

Part 1 is the most important to most users.

This section gives electroacoustical performance specification for three types of sound measuring instruments. In addition to the type of meter, the standard also lists two performance categories Class 1 and Class 2.

Typically speaking, both classes of sound level meter have the the same design goals and only different in the level of accuracy tolerance. Parts 2 and 3 describe the methods of checking conformance to the IEC The procedures are described in detail with the goal of ensuring all laboratories are consistent ic their testing.

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Sound Meter Standards – A Quick Guide – ATP Instrumentation Ltd

Current — IEC Part 1 — Specifications Part 60561 is the most important to most users. A conventional sound level meter: Measuring exponential time-weighted sound level An integrating-averaging sound level meter: Measuring time-average sound level An integrating sound level meter that measure sound exposure level.

Instruments are available that measure 1 or all 606551 types of measurement In addition to the type of meter, the standard also lists two performance categories Class 1 and Class 2.