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NOR139 (Class 1)

Applications
  • Class 1
  • 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
Tech Specifications

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.

  • 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
Accessories

Nor1261 Tripod adaptor

Nor1261 is a “clip-on” tripod adaptor for use with 1/2″ Preamplifiers. Tripod attachment threads is 1/4″.

Nor1262 Tripod adaptor, adjustable

“Clip-on” adjustable Tripod Adaptor for 1/2″ Preamplifiers. Both 3/8″ and 1/4″ tripod screws can be used.

Nor1335A Softbag

Softbag in nylon with room for sound level meter Nor139, calibrator, and accessories. The bag is normally included in Nor139 deliveries.

Nor1434 windscreen, 90 mm

Wind Shield for 1/2″ microphones/preamplifiers. Diameter 90mm.

Nor1451 windscreen, 60 mm

Wind Shield for 1/2″ microphones/preamplifiers. Diameter 60mm.

Nor340 Mains adaptor

Mains Adaptor, 90-230 Vac input with standard EU mains plug, 12 Vdc output/EU
Mains Adaptor, 90-230 Vac input with UK mains plug, 12 Vdc output /UK
Mains Adaptor, 90-230 Vac input with US mains plug, 12 Vdc output /US

Nor1441B PC Cable

Cable (2m) for connection of Nor139 to a PC with 9-pin connector.
The Interface cable Nor1441 exists in two versions. Nor1441 and Nor1441B.
The Nor1441 is now obsolete and is replaced by the Nor1441B. The difference between the two is the connection of the handshake. The Nor1441B uses RTS/CTS handshake. The former version, Nor1441, uses DTR/DSR.

Nor1489A GMS Modem data cable

Cable (2m) for connecting a GSM-Modem with 9-pin socket, such as Siemens TC35i to RS-232 interface on Nor139.

Nor4513B AC out and PC cable

Cable, 2m, for simultaneous connection of Nor139to RS-232 interface and AC(Flat) output.
The Interface cable Nor4513 exist in two versions.
Nor4513A and Nor4513B. The Nor4513A is now obsolete and is replaced by the Nor4513B.

Nor263B Hand switch

Remote hand switch with 5m cable for external triggering of start or audio recording (if applicable) on Nor139.

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Media

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