Nor1255 Sound Calibrator

Nor1255 is a small battery-operated precision class 1 microphone calibrator generating 114 dB @ 1k Hz conforming to IEC 60942 and ANSI S1.40.

The all-digital design with a quartz-controlled signal generator ensuring a frequency stability not yet seen on any calibrator on the market today.

The reference microphone and accompanying control circuit maintain a constant sound pressure level inside the calibration coupler and automatically adjusts for changes in load volume, temperature, humidity and barometric pressure.

Applicable Standards

• IEC 60942 Class 1