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).
Single chip high speed ARM with FPU |
USB port function implemented |
White backlight LCD |
Update firmware via USB (also power supply) |
Integral period from 1s~24h |
Timer feature support auto measurement |
0.1s, 0.2s, 0.5s logger step added |
Internal GPS (option) with GPS timing |
5 templates to save user setting |
Single range to cover 123dB dynamic range |
B-weighting added to meet ANSI standard |
Reduce the noise floor (only for Class 1) |
Automatic power on with external supply, ease of integration |
Upper limit of measurement: 136dBrms/139dBpeak (40mV/Pa) |
Product Features:
● Class 1 (BSWA 308) and Class 2 (BSWA 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 IEC61260-1:2014 and ANSI S1.11-2004
● Linearity range: 20dBA~134dBA (Class 1), 25dBA~136dBA (Class 2)
● 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 def ne 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.