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Sound Pressure Level Measurement
10. Use the LEVEL UP/DOWN keys to select the level range. Choose a setting in which
the "OVER" and "UNDER" indications do not appear (the bar graph should register
to about the middle of the range).
11. Press the START/STOP key.
The LED indicator and the mark on the display start to flash, and the equivalent
continuous sound pressure level measurement begins.
When the measurement time set in step 4 has elapsed, the measurement stops auto-
matically. When wishing to terminate the measurement earlier, press the START/
STOP key.
If an overload condition has occurred at least once during the measurement, the
"OVER" indication is shown on the display.
The display reading corresponds to the sound pressure level.
Using the PAUSE/CONT key, you can pause and resume the level reading and bar
graph display.
12. Press the OPE MODE key to display the equivalent continuous sound pressure
level (L
Aeq
).