BSWA 308/309 BSWA Technology Co., Ltd
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monitor due to noise floor is higher than the lower limit of linear range of sound level meter.
4.6.2 DC OUT
DC OUT is used to output the analog DC signal which is proportional to measurement result
with 10mV/dB ratio. For example, it output 938mV for 93.8dB. Recommend to filter or
average the output signal to remove noise.
Level Meter DC Out can set the signal output of level meter
mode. Press <▲>, <▼>, <◄>, <►> can choose and select.
Filter: A, B, C, Z (Flat)
Detector: Fast, Slow, Imp.
Mode: SPL, LEQ, Peak
Octave DC Out can set the signal output of octave mode. The
option is: LAeq, LBeq, LCeq, LZeq and 6.3Hz~20kHz. Press
<◄>, <►> can choose and select. If select unavailable band
for current function, it will display “Invalid Octave Band!”.
The DC Out connector is 3.5mm 3-Pin headphone socket. Top
and ring is signal lines while sleeve is ground line.
4.6.3 Printer
Print Option can set the printer
option to Auto or Manual. Select
Auto will print measurement result
automatically after stopped
measurement.
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