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9 Technical Specifications
Sound Level Meter
Standards
IEC 61672-1 (2013) Class 2, Group X;
ANSI S1.4-1 (2014) Class 2, Group X;
ANSI S1.43 (2007) Type 2;
IEC 60651 (1979), Amd.1(1993-02), Amd.2(2000-10) Type 2, Group X
Averaging Exponential and Linear
Time Weightings Slow or Fast
Frequency Weightings A, C and Z
Input Ranges Low or High
Sampling Rate 44.1 kHz
Measured Metrics
Leq, Lmax, Lmin, Lpeak, SEL,
LN% (1%, 2%, 5%, 8%, 10%, 25%, 50%, 90%, 95%, 99%)
Peak Maximum Level Low Range: 110 dBZpk, High Range: 130 dBZpk
Under-Range Level Low Range: 30 dBA, High Range: 46 dBA
Electrical Noise Level Low Range: 24 dBA, High Range: 40 dBA
Total Noise Level Low Range: 30 dBA, High Range: 40 dBA
Resolution 0.1 dB
Microphone Nominal Sensitivity -35dB ±3 dB, ref 1V/Pa (17.78 mV/Pa)
Spectrum Analyzer
Standards
IEC 61260-1 (2014) Class 2, Group X (1/1 Octave), Group Z (1/3 Octave);
ANSI S1.11-1 (2014) Class 2, Group X (1/1 Octave);
Averaging Linear (Leq)
1/1 Octave Spectrum 31.5 Hz to 8 kHz
1/3 Octave Spectrum (PC software only) 20 Hz to 16 kHz
FFT Spectrum 400 lines, 6 bandwidths
FFT Bandwidth
Full: 17.2kHz (43.1Hz)
8000: 8.62kHz (21.5Hz)
4000: 4.31kHz (10.8Hz)
2000: 2.15kHz (5.39Hz)
1000: 1.08kHz (2.69Hz)
500: 539Hz (1.35Hz)
Timing
Display Refresh Rate 0.1s
Record Duration Resolution 1s
Record Duration Pre-sets 1s, 10s, 1m, 5m, 15m, 60m (can be redefined from 1s to 1h)
Real-Time Clock Resolution 1s
Recording
Recording Modes Single-Store or Auto-Store
Align on Real-Time Clock Single-Store: No, Auto-Store: Yes
Recording Data All Global Metrics (A, C and Z), LN% (A, C or Z), 1/1 Octave, FFT (optional)
Memory Capacity Without FFT: 198 948 records, With FFT: 18 798 records
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