1 Introduction
The
DB200
sound level meter is an acoustic measurement instrument with main features of a conventional and integrating-averaging
sound level meter.
With its memory,
DB200
sound level meter
stores measurement datasets. Then they are transferred to a computer and processed
through
LDB200
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 (See p.10)
•
Mode 2 :
Conventional sound level meter with storage (See p. 11)
•
Mode 3 :
Conventional and integrating-averaging sound level meter (See p. 13)
•
Mode 4 :
Integrating-averaging sound level meter with storage (See p. 15)
•
Mode 5 :
Sound level meter « calculator » of two sound sources
(See p 17)
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
The sound level meter also communicates with an automaton through I / O
plugs
:
•
0-10 V DC analog output
•
Control bit
activated as per pre-programmed threshold
•
Launching and stop of measurement by the automaton
Introduction
4
