Model

 Accuracy

 Type 1 according to IEC 651 and IEC 804; Type approval at PTB and LNE

 Measurement range

 20-140 dB up to 6 ranges

 Protection

 Auto-reboot facility to protect against power failure

 Sound Level Meter Mode

 Measured

 Slow, fast, impulse, short Leq, peak

 Time step

 From 20 ms to 1s

 Weightings

 A, B, C, G, Lin, Independent peak weighting

 Trigger

 Manual, clock, according to user-defined periods

 Audio Recording

 Pass band

 Up to 20kHz

 Duration

 From 1s to 80min (20kHz – 1 channel) or 60 days (40Hz) per record

 Trigger

 Manual, clock or threshold with pre-trigger facility

 Threshold

 According to monitored level (global or frequency band) with man conditions

 Frequency Analysis

 Spectra

 Octaves or third octaves from 20Hz to 20kHz by digital filtering (IEC1260 class 0)

 Time step

 Same as global values

 Storage

 Continuous or threshold conditions, average spectra on events

dBTrait includes all functions required for data processing : dBTrait

 • Multi-curve display of the time history of overall and spectral indicators

• Calculation of average indicators: Leq over period, Lden

• Calculation on spectra: average spectrum, recomposition, etc.

• Statistical calculation: per source, per period, etc.

• Analysis of metrological signals: replay, 1/N octave, FFT, short Leq, etc.

• Manual coding, on threshold, crossed between channels

• Display of measurement sites on Googlemaps

• Export to Word and Excel