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Inputs
Microphone
MC801: Free field ½”, 25 mV/Pa sensitivity; 0 V; IEC 61094-4 WS2F, 10 Hz-20 KHz.
MP801: preamplifier, automatic detection of model and calibration data. SDI (Sensor Digital Interface). CTC automatic electric calibration
Measuring ranges(with MC801 microphone, MP801 preamplifier):
Dynamic range > 120 dB
Linear Operating Range:
A (1kHz) 25 dB – 137 (140 pk)
C 27 dB – 137 (140pk)
Z 30 dB – 137 (140 pk)
Frequency weightings: A, C + B or Z (user selection). 3 simultaneous
Averaging: Linear, exponential, moving, max, min
Spectral Analysis
Octave: Real time, 1/1 octave, 32 Hz to 16 kHz, IEC 61260-1:2014
Real time, 1/3 octave 10 Hz to 20 kHz, IEC 61260-1:2014
Noise Criteria: NC, NR, RNC, RC
Statistical Analysis: Broad band: 7xLn selectable percentile levels (0.1%-99.9%). Probability/Cumulative distribution.
Audio
Recording:
Mode: continuous, manual or event triggered. Resolution 16, 24, 32-bit.
Audio-band: 10, 20 KHz. Format: Wave or compressed (ADPCM)
Line out: Microphone input on 3.5 mm jack
Measurement Control: Start, stop, pause, reset, back-erase, continue, event marking, manual audio recording.
Calibration: Acoustic: Manual or automatic (tone detection). Calibrations history: date/time, dB correction. Free Field, Random Incidence, environmental and shield corrections
Triggers:
Broad band: Single or multiple (OR/AND) on broad-band levels, levels difference, Ln, Lmov
Spectra: On 1/1 or 1/3 oct. masks. Single - All bands mode. Max, min thresholds editable (man or json file)
Storage
Physical: Embedded 4GB eMMC and up to 64GB µSD (TBA); USB memory stick.
Cloud: Upload to cloud storage service (NS-Storage). Manual or automatic (Push)
Archive: List, preview and plots with zoom function of stored data. Manual data upload on NS-Storage cloud service.
Datalogging
Time history: independent Short, Standard, Report steps.
Short: 100/200/500 ms / 1 s.
Reports: 10/20/30 s,1/2/5/10/20/30/60 m
Events: triggered broad-band, octave, Ln values
Globals: Continuous, Daily integrations
