​BSWA 308/309

Class 1 sound Level Meter

Introduction:
NEW BSWA 308/NEW BSWA 309 are new generation digital sound level meter upgrade from base BSWA 308/309. The new types update the dual-core (DSP+ARM) architecture to single chip ARM with FPU, and update 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 of sound level meter.
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Features:
● Class 1 (NEW BSWA 308) and Class 2 (NEW BSWA 309) sound level meter
● Comply with IEC 61672-1:2013, ANSI S1.4-1983 and ANSI S1.43-1997

Application:
● Basic noise measurement
● Environmental noise assessment
● Product quality check
● Evaluation of noise reduction engineering
BSWA 308 - Class 1
BSWA 309 Class 2
 ● 1/1 Octave in accordance with IEC61260-1:2014 and ANSI S1.11-2004
● Linearity range: 20dBA~134dBA (Class 1)
● Single range to cover 123dB 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-domain curve display
● User define integral period measurement
● ​High speed ARM with FPU (Float Point Unit) to achieve wide 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)

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  • Single range to cover 123dB/122dB dynamic range
  • Linearity range: 24dBA~136dBA (Class 2)
  • 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

Data Sheet & Product Information
Table of Standards
  • GB/T3785.1-2010
  • GB/T3785.2-2010
  • IEC60651:1979
  • IEC60804:2000
  • IEC61672-1:2013
  • ANSI S1.4-1983
  • ANSI S1.43-1997