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Audio-Video - Featured Product

Norsonic
Nor1297
Noise Compass

Norsonic was the first company to introduce sound recording of noise events in a sound level meter. This greatly improved the work to identify a noise event and to judge whether it should be excluded or not from the overall noise level. However, it’s quite time consuming to listen through numerous sound recordings.

The three-dimensional Nor1297 Noise Compass significantly reduces time spent on judging if a noise source should be a part of the overall noise calculation or not, simply by defining which direction the noise is coming from. When used together with Norsonic’s sound level meters and NorCloud, the device provides a three-dimensional vector pointing at the sound source. The system may also operate off-line and collect the data on the instruments SD card for later analyse in NorReview.

Applications

  • Construction site monitoring
  • Harbour monitoring
  • Airport monitoring
  • Road/railway monitoring
  • Plant monitoring

Horizontal angle range: 0 to 360 degrees
Vertical angle range: – 90 to 90 degrees
Sound pressure level range: 40 to 123 dB SPL re. 20 µPa
Operating conditions: Free-field
Horizontal accuracy: ± 7.5 deg. , std. dev. typ. 2.0 deg.
Vertical accuracy: ± 10 deg. , std. dev. typ. 4.0 deg.
Calibration: Factory calibrated with certificate
Operation principle: Multi-correlation
Time resolution: 100 ms
Filtering: A-weighting
Time averaging: Exponential time and 10 ms max
Instrument compatibility: Nor145 and Nor150
Software compatibility: NorCloud and NorReview
Mounting: Nor1216 and Nor1217 compatible
Ingress protection: IP55
Connectivity: Ethernet 100 mbps
Power supply: 5V to 15 V passive power-over-ethernet

Nor1297 calibration results – Typical performance and measurement uncertainty

— no reviews —

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