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Microtech Gefell GmbH
Georg-Neumann-Platz 1
07926 Gefell (Deutschland)
Tel: +49 36649 882-0
Fax: +49 36649 882-11
http://www.microtechgefell.de
info@microtechgefell.de

New sound calibrators from Gefell

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New MTG-calibrators - KAL 4010 and KAL 4011

The 4010 is a sound calibrator conforming to IEC 60942 class 1 and ANSI S1.40 for the calibration and the verification of microphones and sound level meters. The combination of two sound pressure levels and two frequencies allow both level linearity and frequency linearity to be verified. Each sound calibrator is supplied with an individual calibration certificate.

The reference microphone and control circuit together maintain a constant sound pressure level inside the calibration coupler and automatically adjust for changes in load volume, temperature, atmospheric pressure and relative humidity. In addition the sound calibrator measures the environmental conditions temperature, atmospheric pressure and relative humidity.

The 4011 is a sound calibrator conforming to IEC 60942 class 1 and ANSI S1.40 for the calibration and the verification of microphones and sound level meters. It generates a sound pressure level of 114 dB at a frequency of 1000 Hz for the verification of the calibration of sound level meters. Each sound calibrator is supplied with an individual calibration certificate.

The reference microphone and control circuit together maintain a constant sound pressure level inside the calibration coupler and automatically adjust for changes in load volume, temperature, atmospheric pressure and relative humidity. The sound calibrator can be used for 1/2“ and 1/4“ microphones.

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