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Instruction manual

ManualsBrandsRion ManualsAmplifierNA-42
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48
Sound Pressure Level Measurement
Waveform Peak Hold Measurement (L
peak
)
The waveform peak sound pressure level for a given measurement interval can be mea-
sured. This measurement is carried out in the sub channel.
To make the measurement, carry out the following steps.
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. Set "SUB FRQ. WEIGHT" to "C".
6. Set "SUB TIME CONST" to the desired setting.
Normally, the "FAST" setting should be used.
7. If desired, you can use the back-erase function (p. 66), the trigger function (p. 68), or
the delayed measurement function (p. 74). For more information, please refer to the
respective pages.