CESVA SC-30, Руководство пользователя, Страница: 69 / 76

SC-30
User’s Manual
67
•
Equivalent continuous sound pressure level with frequency weighting A corresponding to
the last integration interval T (L
AT
)
•
Equivalent continuous sound pressure level with frequency weighting C corresponding to
the last integration interval T (L
CT
)
•
Equivalent continuous sound pressure level corresponding to the last integration interval T,
with frequency weighting (A) for each one of the octave bands centred on frequencies 63,
125, 250, 500, 1000, 2000, 4000 and 8000 Hz
•
Peak sound pressure level of the integration interval T with frequency weighting C (L
Cpeak
)
•
Measurement time t, integration time T and the elapsed integration time
•
Date and time of the beginning of the measurement
DOSE, DOSE
p
, L
EX,8h p
, E and E
p
functions are not saved. Every time that a register is
recovered these functions are calculated according L
C
and t
p
values set on the sound level
meter.
The SC-30 has enough capacity for up to 1000 final results.
8.5.2 Making a recording
A recording consists of making a measurement and storing a series of functions with a
certain periodicity in the memory. These functions and periodicity are specified, for each
mode, in the recording setting. The main difference between the different kinds of recording
lies in the 'number of functions / storing time' compromise. See section
8.5.3.
Before beginning a recording, make sure there is no measurement in progress ( ).
To begin a recording, press . The screen will display the kind of recording together with
the register number. Next the functions selected for the type of recording will be saved
periodically in the memory until you stop the recording by pressing
.
During the
recording process, the measurement in progress icon ( ) will flicker.
8.5.3 Kinds of recording
The dosimeter mode stores the following information:
T Functions: once each integration interval T has come to an end, the following values are
stored in the memory:
•
Equivalent continuous sound pressure level with frequency weighting A (L
AT
)
•
Equivalent continuous sound pressure level with frequency weighting C (L
CT
)
•
Equivalent sound pressure level corresponding to the last integration interval T, with
frequency weighting (A) for each one of the octave bands centred on frequencies 63, 125,
250, 500, 1000, 2000, 4000 and 8000 Hz
•
Peak sound pressure level of the integration interval T with frequency weighting C (L
Cpeak
)
When the measurements ends, the final results are saved:
•
Equivalent continuous sound pressure level with frequency weighting A corresponding to
the measurement time (L
At
)
•
Equivalent continuous sound pressure level with frequency weighting C corresponding to
the measurement time (L
Ct
)