1 Introduction
The
DB300 sound level meter is an acoustic measurement instrument with main features of a conventional and integrating-averaging
sound level meter and analyzer with storage.
With its memory, DB300 sound level meter
stores measurement datasets. Then they are transferred to a computer and processed
through LDB23 software.
According to international standards, sound level meter calculates and displays on its graphical backlight LCD-screen values used for a
fast and complete study of the noise environment.
To simplify and make nice its use, 5 measurement modes have been preselected:
Mode 1: conventional sound level meter and averaging-integrating with storage
Mode 2: integrating-averaging sound level meter – A and C weighted
Mode 3: integrating-averaging sound level meter – A, C and Z weighted and analyzer by octave bands filters
Mode 4: analyzer sound level meter for the measurement according to the NR curves (as per NF S 30-010 standard)
Mode 5: Sound level meter “calculator” of two sound sources
Other
optional
modes are available and mainly:
Mode 6: integrating-averaging sound level meter, and A, C and Z weighted and analyzer by third octave bands filters
Mode 7: building acoustics for the control and the reception of places
In the different modes, in addition to measured values, the sound level meter
can display:
•
results for a better definition of the acoustic environment:
Maximum and minimum values, peak values, statistics distribution of measured levels
•
indications required for the proper validation of the measurement:
Presence and percentage of overload input stages, duration of the measurement
•
other information:
Battery autonomy, remaining measuring capacity
Start or stop a measurement are very easy to perform:
•
Directly with the keyboard in instantaneous mode or scheduled later
or
•
With an automation (I/O plug)
The sound level meter also communicates with an automaton through I / O
plugs:
6
Introduction
