Instruction manual

54
Sound Pressure Level Measurement
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 noise level (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 sound exposure level (L
AE
).
Takt-Max Sound Pressure Level Measurement (L
tm3
, L
tm5
)
To make the takt-max sound pressure level measurement, carry out the following steps.
The procedure is almost identical to the equivalent continuous sound pressure level mea-
surement.
1. Set the power switch on the side of the unit to ON and wait until the measurement
screen appears.
(For an explanation of the power-on procedure, refer to page 42.)
2. Press the SETUP key to call up the SETUP menu screen.
(For an explanation of how to use the SETUP menu screen, refer to page 30.)
3. Set "MEASURE MODE" to "LEQ".
4. Set the measurement time with the "Leq Time" item. The maximum setting is 99
hours.
5. If desired, you can use the trigger function (p. 68), or the delayed measurement
function (p. 74). For more information, please refer to the respective pages.