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Standards: Class 1 IEC 61672-1:2013; Class 1 IEC 61260-1:2014
Meter mode: Elapsed time, Lxy (SPL), Lxeq (LEQ), Lxpeak (PEAK), Lxymax (MAX), Lxymin (MIN), Ovl (Overload %), Lxye (SEL), LN (LEQ statistics), Lden, LEPd, Ltm3, Ltm5
Simultaneous measurement: Three profiles with independent sets of filters (x) and detectors (y)
Analyser: 1/1 or 1/3 octave real-time analysis
Pure tone detection: ISO 1996-2 compliant (Tonality option)
User filters: Programmable second-order band pass filters (Option)
Audio recording: Time-domain WAV recording, continuous or triggered
Sampling rate: 12 / 24 / 48 kHz, 24-bit resolution
Weighting filters: A, C, Z, B, G
RMS detector: Digital true RMS detector with peak detection, resolution 0.1 dB
Detector time constants: Slow, Fast, Impulse
Microphone: GRAS 40AE, 50 mV/Pa, prepolarised 1/2” condenser microphone
Preamplifier: SV 17 voltage type, supports 200 V polarisation
Linear operating range: 22 dBA RMS ÷ 140 dBA peak (IEC 61672)
Dynamic measurement range: 12 dBA RMS ÷ 140 dBA peak (Typical)
Internal noise level: < 12 dBA RMS
Frequency range: 3.15 Hz ÷ 20 kHz (With GRAS 40AE microphone)
Data logger: Time-history logging, adjustable steps down to 2 ms
Memory: microSD 8 GB, removable, upgradeable to 128 GB
Communication: 4G modem, USB
Power supply: Waterproof DC power supply 15 V, 60 W, acceptable range 11 V ÷ 30 V
Internal battery: 17 Ah / 12 V
External battery: 33 Ah / 12 V (Optional)
Solar panel: Optional
Operating time on battery: 4 days with continuous 3G modem transmission; 8 days with modems switched off
Test conditions: Meter mode, display dimmed, 2 ms time-history logger, continuous event recording
Microphone protection kit: SA 279 outdoor protection kit, IP65
Environmental conditions: Temperature -10 °C ÷ +50 °C
Dimensions: 305 x 270 x 194 mm (Without cables)
Weight: Approximately 9 kg including battery
