Benetech GT1355 - A;C Frequency Weighting Selection; F;S Time Weighting Selection

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SLOW
dBA
FAST
dBC
F. A/C Frequency weighting selection
On the measurement interface, short press the A/C button to switch
between A (dBA)/C (dBC) weighting
A-Weighting for general sound level measurements.
C-Weighting for checking the low-frequency content of sounds.
G. F/S Time weighting selection
between FAST/ SLOW
FAST is to pick up the current reading;
SLOW is to pick up the reading of average within 1 second.
On the measurement interface, short press the F/S button to switch
C (dBC)
FAST
A (dBA)
SLOW