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1. FEATURES OF THE INSTRUMENT
Digital sound analyzer model DSA-50 is the instrument combining the features of integrating
sound level meter as well as 1/1- and 1/3-octave band frequency analyzer.
The majority of quantities characterizing occupational, environmental and other kinds of
acoustic noise can be measured by this Class 1 digital-signal-processing instrument.
DSA-50 is designed to be capable to perform long-lasting measurements without need of
battery recharging. Internal battery allows for at least 24h continuous operation of the instrument
provided microphone heating is turned off. External battery or mains adaptor may be also used.
The instrument is equipped with USB 1.1 interface to enable bi-directional communication with
PC.
Fig. 1.1. DSA-50 digital sound analyzer – general view.