Sound Calibrator Norsonic Nor1255

• 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. Each calibrator is supplied with an individual accredited calibration certificate.

Features

• Conforms to EN/IEC 60942 : 2017 Class 1 and ANSI S1.40–2006 class 1
• Ultra-stabile silicone reference microphone
• All-digital quartz-controlled signal generator
• Fully compensated for static pressure, humidity and temperature
• Sound pressure independent of microphone equivalent volume
• Robust, compact and battery operated
• 114dB @ 1000 Hz
• Supplied with accredited calibration certificate