5) According on various measuring sound source,
select the " Time weighting selector " ( 3-3, Fig. 1 )
to " F " or " S " position.
Typically select the " Time weighting selector " to
" F " position.
6) Hold the instrument in hand and point the
microphone at measured noise source, the sound
level will be displayed on "dB" ( decibel) unit.
7) Max. hold
During the sound level measurement, if intend to
hold the maximum ( peak ) value on display, slide
" Max. hold & Instant display selector " ( 3-4, Fig. 1 )
to the " Max. hold " position.
Note :
a.
During the operation of " Max. hold function ",
push " Reset button for Max. hold function " ( 3-6,
Fig. 1 ) once a while will reset the max. peak value.
b.
If not use the " Max. hold " function, it should
select the " Max. hold & Instant display selector "
( 3-4, Fig. 1 ) to the " Instant " position.
5. MEASURING CONSIDERATION
1) Please should select the proper weighting selector (A
weighting or C weighting). The A weighting selector will
be engaged normally.
2) Please select proper measurements range to minimize
the tolerance of readout.
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