9
4.1. USB communications setting:
Turn on the meter, connect the meter with the computer
correctly, choose the software COM3
（
COM4
）
,hen press
‘ETUP’ , ‘ ‘ disappears from the display to indicate and
disable auto power off, that the USB data is transmitting.
⑤
FAST/SLOW button:
Time weighting selection
FAST: st sampling measurement, 1 time per 125mS.
SLOW:Slow sampling measurement, 1 time per second.
⑥
MAX/MIN button:
Maximum and Minimum hold Press this button for one
time to enter MAX/MIN measurement, ‘MAX’ will appear
on LCD, maximum sound level will be captured and held
until higher sound level is captured. Press the button again,
‘MIN’ will appear on LCD and minimum sound level will be
captured and held until new lower sound level is captured.
Press the button one more time to exit MAX/MIN
measurement.
⑦
LEVEL
button: Level range selection
Each time you press “LEVEL” button, the level range will
change between ‘Lo’ level, ‘Med’ level, ‘Hi’ level and ‘Auto’
level in the circular.
