18. 7월 2024

The XL3 Sound Level Meter has received type approval from Physikalisch-Technische Bundesanstalt (PTB) in Germany and can therefore be used for precision-grade Class 1 measurements in full compliance with the sound level meter standard IEC 61672:2014. This level of certification qualifies the XL3 for legally compliant measurements of environmental noise, occupational noise, and sound insulation tests in Germany and in many other countries around the world.

The PTB Type examination certificate confirms that the XL3 (in combination with the measuring microphones M2230 and M2340, and optionally the weather protection WP30-90) fully complies with the requirements for Class 1 sound level meters in accordance with the standards DIN EN 61672-1:2014-07 and DIN 45657:2014-07. This means that the XL3 can be used by accredited and designated measurement bodies in accordance with the most demanding of national standards and by governing authorities for all types of sound measurements.

Open Certificate

“The approval by the PTB as well as the comparable approvals in other countries, are of great importance as they confirm that the XL3 meets the highest accuracy and reliability standards,” states Gregor Schmidle, Product Manager at NTi Audio AG. This is particularly important for professional and official applications where accurate and certified noise measurements are required, e.g., in the fields of legal occupational health and safety, environmental monitoring and building acoustics.

This is not the first certification for the XL3 Sound Level Meter. Previously, the French LNE, the Swiss METAS, the CPA in China and the CMI in the Czech Republic have issued similar test certificates.

Further information about the XL3 Sound Level Meter and its functions can be found at www.nti-audio.com/XL3.