Product news

Up to date, versatile and field-proven are calibrators like the calibrator KAL 4010 (for 1", 1/2" or 1/4" measuring microphones, with PTB type examination and sound pressure level of 94 dB or 114 dB at 250 Hz or 1 kHz) and KAL 4011 (for 1/2" or 1/4" measuring microphones with sound pressure level of 114 dB at 1 kHz).

Each sound calibrator is supplied with an individual calibration certificate.

Easy handling and precise calibrations

KAL 4010

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.

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.

KAL 4011

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.

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.