Area Sound Level Meters

SWAN 308/309 are octave sound level meters updating the dual-core (DSP+ARM) architecture to single chip ARM with float point unit, and updating all fix-point calculation to float-point, which significantly improves the accuracy and stability. Re-design analog front end circuit also lower the noise floor and linear range of product. SWAN 308 is Class 1 and SWAN 309 is Class 2.

  • Class 1 (SWAN 308) and Class 2 (SWAN 309) sound level meter
  • Comply with IEC 61672-1:2013, ANSI S1.4-1983 and ANSI S1.43-1997
  • 1/1 Octave in accordance with IEC 61260-1:2014 and ANSI S1.11-2004
  • Linearity range: 20dBA~139dBA (SWAN 308), 20dBA~139dBA (SWAN 309)
  • Single range to cover 123dB/122dB dynamic range
  • Frequency weighting: A/B/C/Z. Time weighting: Fast/Slow/Impulse
  • 3 profile calculation in parallel with different frequency/time weighting. 14 custom define measurement
  • Calculate SPL, LEQ, Max, Min, Peak, SD, SEL, E
  • LN statistics and time history curve display
  • User define integral period measurement, integral period up to 24h
  • High speed ARM core with FPU (Float Point Unit) to achieve wide frequency response, large dynamic range and low noise floor
  • 4G MicroSD card (TF card) mass storage
  • RS-232 remote control port
  • Mini thermal printer for measurement data print
  • Internal GPS module (option), support GPS timing.
  • Basic noise measurement
  • Environmental noise assessment
  • Product quality check
  • Evaluation of noise reduction engineering

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040-40216184 / 85