Norsonic NOR278 Noise Source

Discover the Norsonic NOR278 Noise Source — engineered for precise, standards-compliant acoustic measurements. Applications Comparison method for determination of sound power of noise sources according to ISO 3741, ISO 3743-1, ISO 3747 and other methods requiring ISO 6926 compliant reference sound sources. About The reference sound source Nor278 is designed to produce a stable and uniform sound power output with unique long-term stability. The high sound power output makes it ideal for sound power measurements in a noisy environment. The rugged, but yet portable and light weight construction is perfect for field us as well a laboratory use. Every effort is made in the design to ensure a uniform frequency response and optimum directional characteristic well inside the requirements in ISO 6926:2016. Each unit is carefully assembled and individual tested. To enhance the level of quality and traceability of your measurements every unit is accredited calibrated by the Norsonic Calibration Laboratory (NCL) in accordance to ISO 6926:2016. This service is also offered for periodic re-calibration. Accredited Calibration NCL is a calibration laboratory accredited according to ISO/IEC 17025, carrying out calibration of acoustical equipment for measuring noise (sound level meters, microphones, dosimeters and acoustical calibrators), accelerometers, tapping machines and reference sound sources. The accreditation is recognized internationally through European and global multilateral agreements in more than 40 countries around the world made through the international Laboratory Accreditation Cooperation – ILAC. Thus the Norwegian Accrediting body has established that Norsonic calibrations are internationally accepted as being carried out in an accredited laboratory. Features A weighted Sound power output: 94 dB re 1 pW (50 Hz line frequency) Sound power 50 Hz – 20 kHz: 94 dB re 1 pW (50 Hz line frequency) Fulfils ISO 6926:2016 (ANSI S12.5-2016) for reference sound sources in the extended frequency range 50 Hz – 20 kHz. Delivered with accredited calibration certificate Long-term stability Standards ISO 3741 ISO 3743-1 ISO 3747 ISO 6926 ISO 7779 Specifications Device type: Nor278: Reference sound source according to ISO 6926:2016 for extended frequency range 50 Hz – 20 kHz Nor278/US: Reference sound source according to ISO 6926:2016 for standard frequency range 100 Hz – 10 kHz Power Supply:  220-240 Volt/50 Hz  /  110-120 Volt/60 Hz Power consumption:  <750 W (typical 650 watt) (50 Hz)  /  <900 W (typical 800 watt) (60 Hz) Fuses:  10A – slow blow (220 V)  /  20A – slow blow (110 V) Sound power output each 1/3-octave frequency band: >75 dB re 1 pW (50 Hz) / >77 dB re 1 pW (60 Hz) in each 1/3-octave bands in the range 100 Hz to 10 kHz. A-weighted sound power output:  94 dB (typically) (50 Hz)  /  97 dB (60 Hz) Weight: 18 kg (50 Hz)  /  24.5 kg (60 Hz) Height exclusive handle: 396 mm Height inclusive handle: 464 mm Diameter: 283 mm Temperature: -25° to 50°C. Above 35°C intermittent use only. Humidity: Up to 90 %, non-condensing.