DeltaOHM HD2010UC/A, Руководство по эксплуатации

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HD2010UC/A
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V4.1
S
INGLE
I
NTEGRATION
When the integration mode is single , the sound level meter, after clearing the integrated levels
(i.e. Leq), starts measuring the instantaneous sound levels (i.e. SPL) and calculating the integrated
levels regularly until acquisition stops.
This mode provides, at the end of the measurement session, the integrated levels over the
whole acquisition period. The parameter “MENU >> Instrument >> Measurement >> Integration
Interval” allows to suspend the display update, when set time is over.
Now, to store displayed data press REC and hold it down for at least 2 seconds , then select
the manual storage option. Press PRINT if you want to send displayed data to the serial output.
While display update is stopped in HOLD, the sound level meter continues measuring and
calculating the sound levels; press HOLD to let display update start again. If you do not wish to
continue beyond the set integration time, press STOP to interrupt the acquisition. When the integrat-
ing mode is SINGLE and continuous noise level recording is active, the acquisition is automatically
stopped once the set integration time is elapsed.
The PAUSE/CONTINUE key can be used to suspend the calculation of integrated levels tem-
porarily, while instant levels are still being measured. During a pause, and as far as the integrated
levels displayed on the SLM page are concerned, you can delete the last integration seconds through
the “BACK-ERASE FUNCTION (DATA EXCLUSION)” see page 16. The monitor function is not
affected by the acquisition pauses. The continuous recording function suspends data storage during
the acquisition pauses and automatically stores a marker indicating the pause duration and the pos-
sible use of the erase function.
The sound level meter has a further timer for interval acquisition (MENU >> Instrument >>
Measurement >> Report Time). This parameter can be used to break up the measurement time into
programmable duration intervals from 1 second to one hour, and calculate a set of 5 selected inte-
grated levels for each interval, namely Leq, maximum and minimum levels, SEL, and statistical
levels. The average spectrum (AVR) for each interval can also be calculated by both octave band
and third octave band, and using statistical analysis (MENU >> Recording >> Report). These data
cannot be displayed directly but can be recorded by enabling continuous recording. The report lev-
els can be displayed by loading the recording from the sound level meter memory using the Naviga-
tor, and selecting the Report mode for the replay. The interval acquisition can be enabled only in
single integration mode.