BSWA 308 - Specifications

BSWA 308/309 BSWA Technology Co., Ltd
9
 Frequency weighting: A/B/C/Z. Time weighting: Fast/Slow/Impulse
 3-Profile and 14 custom define measurement are calculate in parallel with different
frequency/time weighting
 Calculate SPL, LEQ, Max, Min, Peak, SD, SEL, E, Lday, Levening, Lnight, Ldn, Lden
 LN statistical 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
1.4 Function Upgrades
 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 for 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)
1.5 Spectification
Specifications
Type
BSWA 308
BSWA 309
Accuracy
Class 1 (Group X)
Class 2 (Group X)
Standard
GB/T 3785.1-2010, IEC 60651:1979, IEC 60804:2000
IEC 61672-1:2013, ANSI S1.4-1983, ANSI S1.43-1997
Octave
1
Real-time 1/1 Octave (Option): 8Hz~16kHz
Real-time 1/3 Octave (Option): 6.3Hz~20kHz
Real-time 1/1 Octave (Option): 16Hz~8kHz
Real-time 1/3 Octave (Option): 16Hz~12.5kHz