Environmental Noise Meter Norsonic Nor139 Class 1

A general purpose class 1 sound level meter mainly designed for advanced noise assessments and noise logging,

• Featuring event triggered sound recording and markers.
• The Nor139 sound level meter may optionally be fitted with 1/1- and 1/3-octave filters capable of logging multispectra with a vast number of measurement parameters with a time resolution of from 100ms and on. Fitted with removable SD-card for easy to store and import measurement data to a PC.

Applications:

• Environmental noise assessments
• Sound recording
• Noise source identification
• HVAC noise
• Noise hazards in the workplace
• Remote noise monitoring
• Product development
• Noise labelling
• General purpose sound level meter

Features:

• Precision integrating sound level meter to IEC 61672 class 1
• Handheld real-time 1/1-octave or 1/3-octave frequency analyser (6,3Hz-20kHz)
• Measurement of A-weighted levels simultaneously with either C- or Z-weighted levels
• Parallel detection of SPL, Leq, Lmin, Lmax, LE and Lpeak
• 120 dB dynamic range giving a “one-range” instrument
• Measures Lpeak levels up to 140 dB
• Parallel detection of F, S and I time constants
• USB 2.0 and High-speed RS-232 serial interface
• SD memory card and large high speed internal memory
• Sound recording in 8, 16 or 24 bit format with 12 or 48 kHz sampling
• Up to 90 sec. audio recording pretrigger
• High-resolution graphical backlit display
• Manual or automatic storage of results
• Automatically repeated measurements with clock synchronization
• Pause/Continue function with back erase feature
• Results displayed as dB or linear values
• Numerical printouts
• AC output signal
• Windscreen correction
• Support for IEPE sensors
• NC, NR and RC rating
• Multiple language selection
• Moving Leq