Model 407790 - Real Time 1/3 Octave Band Analyzer

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Type 2 integrating sound level meter with Octave and 1/3 Octave Band Real Time Display.

  • Wide 100dB range of 30 to 130dB
  • 160 x160 dot matrix backlit LCD displays Leq, LE, Lmax, Lmin and Lp
  • Built-in memory stores up to 12,280 records in SLM mode and 1024 data points in 1/1 or 1/3 octave mode
  • Stored data can be easily transferred to a PC via RS-232 interface and analyzed using software & cable provided
  • A, C and Flat weighting with Fast or Slow response
  • 25Hz to 10kHz frequency response
  • Meets ANSI and IEC Type 2 standards
  • Internal self test when powered ON
  • Detachable 0.52'(13.2mm) diameter condenser microphone and Tripod mount provided on rear
  • Analog AC/DC recorder output
  • Real time clock with Year, Month, Day, Hour, Minute and Second display
  • Optional microphone extension cable for measurements in enclosures and other remote locations (407764-EXT)
  • Complete with microphone wind cover, PC software on CD, Serial cable, four type C size batteries, adjustment screwdriver, 120VAC adaptor and carrying case
  • Optional Certificate of Calibration, traceable to N.I.S.T. with data at multiple points

  • Real time analysis of noise from any source such as machinery or vehicles
  • Monitor office or plant noise and store data for later reference and analysis
  • Maintain noise level statistics for internal and external audits
  • Perform machinery noise monitoring or use for noise reduction programs

  • Applicable standards ANSI S1.4 Type 2, EN IEC 60651, EN IEC 60804, and EN IEC 1260-1995
  • Accuracy ±1.5dB (ref 94dB @ 1kHz)
  • Measurement range / function 30dB to 130dB / La, Lc, Lp, Leq, LE, Lmax, Lmin
  • Frequency range 25Hz ~ 10kHz
  • Sound level meter display Integrating SLM: Digital, 4 Digits with Bargraph
  • Real Time Analyzer display Graphical, Bargraph with cursor
  • 1/1- 1/3 Analyzer level range 30 to 130dB
  • 1/1 Octave and 1/3 Octave 1/1 Octave band center frequencies: (9 bands);  1/3 Octave band center frequencies: (27 bands):
  • Signal output AC output: 2 Vrms (at full scale); DC output: 10mVDC/dB
  • Power Four type C size 1.5V batteries, External DC power: 6V, 1A
  • Safety/Warranty CE approved, one year warranty
  • Dimensions/Weight 13.6 x 3.9 x 2.4' (345 x 100 x 60mm)/ 33.5oz (950g)

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