pressing and holding the " Range Button "( 3-5, Fig. 1 ) again
range will enter to the manual range ( range 1,range 2 )
and auto range in sequence ,There are still 2 manual ranges.
for your choice :
* Manual range 1 , 30 - 80 dB range
Display will show the text of " 30 - 80 ".
* Manual range 2 , 80 - 130 dB range
Display will show the text of " 80 - 130 ".
4)
According to various measuring sound source, select the
Time Weighting ( Fast or Slow or PEAK Fast ) by pressing and
holding the "Function ( Time Weighting Button ) " ( 3-7, Fig. 1 ).
Note :
a.
If select the function of " Fast " time weighting, th
display will show the unit of " FAST".
b. If select the function of " Slow " time weighting, th
display will show the unit of " SLOW ".
c. If select the function of " PEAK FAST " time weighting, th
display will show the unit of " PEAK FAST " and will show
maxmun reading .
4-2 Integrating Sound Level Meter Measurements (Leq
In the Leq mode the display will shows the integrated
level for the run period readings.
1) Power ON the meter by pressing and holding the " Powe
Button " ( 3-2, Fig. 1 )for at least 1.5 seconds,
the meter's default function is " A frequency weighting ,
" SPL " " & " Fast time weighting "&" Auto range ". The
LCD display will show the Symbol " A.SPL, Fast , Auto ".
2)
Select the Leq
mode by pressing and holding the
" MODEL button" ( 3-20 Fig 1 ) select to the Leq MODEL .
8
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