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
• Real-time 1/1 and 1/3 Octave in accordance with IEC61260-1:2014 and ANSI S1.11-2004
• Linearity range: 22dBA~136dBA (BSWA 308), 25dBA~136dBA (BSWA 309)
• Single range to cover 123dB/122dB dynamic range
• Frequency weighting: A/B/C/Z. Time weighting: Fast/Slow/Impulse
• 3 profile calculation in parallelwith 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

Features:

• Basic noise measurement
• Environmental noise assessment
• Product quality check
• Evaluation of noise reduction engineering

Introduction:

New BSWA 308/309is new generation octave 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 and linear range of product.

BSWA 308 is Class 1 and BSWA 309 is Class 2. Both instruments have certificated by the China CPA (Certification of Pattern Approval) and CMC?(China Metrology Certification)