CESVA SC-30, User Manual, Page: 34 / 76

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F1, F2 and F3 are the acoustic functions selected by the user on the preferential
screen. They may be any of the 54 different functions the SC-30 measures in sound
level meter mode.
3.3.2 Recording in spectrum analyser mode
Recording in spectrum analyser mode is not configurable. When carrying out a recording in
spectrum analyser mode, the SC-30 stores all the functions measured in the memory every T
seconds (integration time) (see
3.1). The following table shows the storage capacity for
recordings in spectrum analyser mode.
Type of recording Storage capacity
•
Equivalent continuous level of T seconds +
Maximum peak level of each octave band
•
Equivalent continuous global sound pressure level
with T + maximum global peak sound pressure level
with frequency weighting A, C and Z
every T seconds
T= 1 s 4 hours 26 minutes
T= 1 min 11 days 2 hours
T= 5 min 1 month 25 days
T= 1 hour 1 year 10 months
The maximum storage times in both modes may be distributed among as many registers as
you like, so long as they do not exceed 1,000.
When the internal memory is full, no recording may be made and no final result may be
stored. If you attempt to do this, “MEMORY FULL” will appear on the screen. If the memory
fills up before the end of a recording, data recording stops, although measurement continues.
When the measurement is complete, the final result is saved in the memory.
When carrying out a recording in spectrum analyser mode with T
≠
t the data recording and
measurement stop if the memory fills up before the end of a recording.
3.4 View register
This option allows you to display on the screen the final results of the registers stored in the
SC-30 memory. To use the option, access VIEW REGISTER on the SC-30 menu.
The SC-30 allows you to select, using the keys , and , the register you
want to display, and an index will appear on-screen showing all the registers stored in the
memory (register date and time of the beginning of the recording process).
To display the different functions, follow the procedure described in sections 2.3.5 and 2.4.5.
Information on the graphic SLM screen is not available.
3.5 Erase memory
This option allows you to completely erase the memory. Before proceeding to so, the SC-30
requests confirmation.
NOTE: If the power supply to the sound level meter is suddenly interrupted in the middle of a
recording, the recording will be incomplete and will not be displayed on screen of the SC-30.
The “INCOMPLETE RECORDING” message will appear on screen when recovering. We
therefore recommend that when you connect the SC-30 to the direct current A-200 or AM201
feeder, insert new batteries into the sound meter, because in the event of a power cut the
unit will commute to battery feed. If the mains feed is not restored before the battery runs out,
just before the batteries go flat the SC-30 will stop measuring and gradually switch itself off.