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Fulfills Standards
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IEC 61672 Class 2
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IEC 61260 Class 2
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IEC61252:2002
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Microphone
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1/2” prepolarized condenser microphone for free field (Sensitivity Level: -36dB)
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Preamplifier
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AWA14602 removable preamplifier
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Frequency Range
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20 Hz ~ 12.5kHz ± 1 dB (not including microphone)
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Total Measurement Range
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30dB-133dB
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Frequency Weighting.
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Parallel (simultaneous) A, C, Z, B, D
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Time Weighting
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Parallel (simultaneous) F, S, I, Peak
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Measurement Parameters
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Lxyp, Lxyi, Lxeq,1s, Lxeq,T, LAE, E, Cpeak, LAFmax, LAfmin, LAfeqT, LAseqT, LAieqT.
Note: X is A, C, Z and Y is F, S, I
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A/D Bits:
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24 bits
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Sampling Frequency
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32 kHz.
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Calibration
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Using Sound Calibrator Class 2 model AWA6221B
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Correction Function
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Diffusion field correction in order to comply with standards ANSI S1.4
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Display
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240×320 color screen, adjustable brightness, backlight can be closed
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Display Resolution
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0.1 dB
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Low battery indication
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indicate low battery
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Data Storage
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3328 groups of integrating measuring results only.
32 Mb FLASH RAM
(32G SD card memory function is optional)
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Print
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Mini-printer
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Internal Clock
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Error less than 1 min/month
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Output Interface
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AC Output (full scale): 1.0V AC RMS; Output Impedance: 1k Ω; Connector: φ3.5 mm stereo plug
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DC Output: 20mV/dB; Output Impedance: 1k Ω; Connector: DB-9 plug
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RS232 Interface: To computer for output some measurement results instantaneous values , also to mini-printer for printing
Transmission speed: 4800, 9600,115200 bps
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USB Interface: available and no need device drive.
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Power Supply
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4×LR6 alkaline battery or rechargeable batteries
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5 V external power supply
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Battery Life
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Longest time of 30 hours continuously with 4×LR6 alkaline battery
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Dimensions
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240 (H) x 80 (W) x 30 (D), mm.
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Weight
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0.35 kg. (include batteries)
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EMC
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Type X
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Environment:
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Working Temperature: -10 ~ 50 °C
Storing Temperature: -20 ~ 70 °C
Relative Humidity: 25 ~ 90 %
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