Integrating Sound Level Meter / EN
08/15/16 Version No. 01
12
4.
button : Press this button the following parameters are monitored during
integrating measurement and can be viewed selectively :
Leq with integrating start time.
SEL with integrating stop time.
SPL MAX Maximum sound level with time.
SPL MIN Minimum sound level with time.
PH Peak Hold sound level.
L05, L10, L50, L90, and L95 percentile sound levels.
5.
button :
Press to start ( “
” measurement symbol) or pause ( “ ” pause symbol) the
integrating sound level measurement (including the various processing functions)
or the data recording. When the measurement period is completed, the ( “ ” end
symbol) indication is shown on the display.
Press this button 2 seconds to exit the integrating measurement or the data record.
If the end “ ” symbol is shown on the display, press this button 2 seconds will clear
the last integrating measure data and the “ ” symbol will disappear, back to normal
sound level measurement mode.
6.
button :
Level range buttons: select the level range for the measurement.
The following five settings are available: 30 to 90dB, 40 to 100dB, 50 to 110dB,
60 to 120dB, 70 to 130dB.
Press these buttons to increment or decrement setting values.
7.
button : Sets the frequency weighting to A or C mode.
8.
button : Sets the time weighting to FAST, SLOW or IMPULSE mode.
FAST : uses a 125ms-time constant. This setting is used in
most situations.
SLOW : uses a 1s time constant, which smooth out fluctuating
levels.
IMPULSE : uses a 35ms time constant with a slow decay, which
allows readings of short-duration sound events.
9.
button : Used for reading the maximum time-weighted sound level
encountered during a measurement.
Press this button to enter maximum recording mode. The “MAX”
indicator will blink appear on the display. Press again to exit
maximum recording mode.
