CESVA SC310, Руководство пользователя

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Graphic spectrum analyser 1/1 screen
This screen displays the following information in real time:
• Graph showing the continuous equivalent sound-pressure levels with T integration time
(bars ) in real time for octave bands centred on frequencies 31.5, 63, 125, 250, 500,
1000, 2000, 4000, 8000 and 16000 Hz (without frequency weighting).
•
Numerical value of the continuous equivalent sound-pressure level with T integration time
for the selected octave band (bar ) (without frequency weighting).
•
Central frequency of the selected octave band (bar ).
• Overall continuous equivalent sound-pressure level with T integration time and frequency
weightings A, C and Z.
• Maximum peak sound pressure level of the T interval and with frequency weighting A, C
and Z
To change the selected octave band (bar ) press (left) and (right).
By pressing you access the numerical spectrum analyser 1/1 screen.
The SC310 measures "short" functions (125 ms functions), although these are not displayed
on the screen. They may be viewed only through the software by means of real-time
connection with the sound level meter or by making a recording and subsequently
downloading it into a PC. These functions are:
ƒ Continuous equivalent sound-pressure level with consecutive integration time of 125
ms (Short Leq) in real time for octave bands centred on frequencies 31.5, 63, 125,
250, 500, 1000, 2000, 4000, 8000 and 16000 Hz (without frequency weighting).
ƒ Overall continuous equivalent sound-pressure level with 125 ms integration time and
frequency weightings A, C and Z.
ƒ Peak sound pressure level (Lpeak) for the 125 ms consecutive integration time and
with frequency weighting A, C and Z.
Numerical spectrum analyser 1/1 screen
This screen displays the following information in real time: