CESVA SC310, Руководство пользователя

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SC310
User’s Manual
47
3.3 Kinds of recording
3.3.1 Recording in sound meter mode
The option SETTING Î RECORDING Î SOUND METER RECORDING allows you to set
the periodicity and functions to be saved in the SC310 memory when a recording is made in
sound meter mode. Six possibilities are available:
• 1s functions : these save all the functions measured each second:
o
L
XF
, L
XS
, L
XI
and their maximums and minimums each second plus total
measurement time.
o
L
XT
and its total measurement time maximums and minimums.
o
L
XT
with T=1s, L
Xt
, L
XIT
, L
XIt
and L
XE
o
L
Xpeak
and its maximum each second.
X
: with frequency weightings A, C and Z
• 125ms functions : save all measured functions every 125 ms, 'short' functions:
o
L
XF
, L
XS
, L
XI
sampled every 125 ms. 8 values per second.
o
L
XT
with 125 ms consecutive integration time (Short Leq). 8 values per
second.
o
L
Xpeak
8 values per second.
X
: with frequency weightings A, C and Z
• 1s + 125ms functions : save all the 1s and 125 ms 'short' functions.
These 3 types of recording are conceived for short-duration measurements.
• F1 each second : saves the main function programmed on the preferential screen second
by second.
• F1, F2 and F3 each second : saves the 3 functions programmed on the preferential
screen second by second.
• L
T
+ L
IT
and percentiles every T : each T (integration time) saves the continuous
equivalent level and the continuous equivalent level with impulse ('I') temporary weighting
and with frequency weightings A, C and Z, together with the partial percentile levels
corresponding to 1, 5, 10, 50, 90, 95 and 99% of the T interval.
These kinds of recording are conceived for long-duration measurements such as studies of
environmental noise, traffic noise and so forth.
•
F1, F2 and F3 each second (+) : saves the following functions every second:
o
L
Cpeak
of each second.
o
L
AF
sampled every 125 ms. 8 values per second.
o
L
AT
with 125 ms consecutive integration time (Short Leq). 8 values per second.
o
F1, F2 and F3 each second.