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Microphone + Preamplifier: 1/2” prepolarized condenser microphone+ Preamplifier (Sensitivity Level: -28dB)
Correction Function: Diffusion field correction in order to comply with standards ANSI S1.4
Preamplifier: AWA14601 removable preamplifier
Frequency Range: 10 Hz ~ 20 kHz ± 1 dB (not including microphone)
Total Measurement Range:
Low range: (20～132)dBA, (25-132)dBC, (30-132)dBZ
High range: (16～142)dBA, (35-142)dBC, (40-142)dBZ
Self-generated Noise: <12 dB(A), 17 dB(C), 22 dB(Z)
Frequency Weighting: Parallel (simultaneous) A, C, Z, B, D and user1&2-defined weighting
Time Weighting: Parallel (simultaneous) F, S, I, Peak
A/D Bits: 24 bits
Sampling Frequency: 48 kHz
Calibration: Using Sound Calibrator Class 1 model AWA6221A
Correction Function: Diffusion field correction in order to comply with standards ANSI S1.4
Delay Time: The meter can delay 0~99s after pressing start measuring button
Back Erase Function: Elimination of undesired noise; example barking dogs, cars, doors
Display: 240×320 color screen, adjustable brightness, backlight can be closed
Display Resolution: 0.1 dB
Low battery indication: Symbol indicate low battery
Data Storage (32 Mb FLASH RAM.SD card is optional)
3328 groups of integrating measuring results only.
3328 groups of statistical results only (‘statistical 1’ and ‘statistical 2’ analysis index are same.)
2663 groups of statistical results only (‘statistical 1’ and ‘statistical 2’ analysis index are different.)
Print: Mini-printer
Internal Clock: Error less than 1 min/month
Output Interface
AC Output (full scale): 1.0V AC RMS; Output Impedance: 1k Ω; Connector: φ3.5 mm stereo plug
DC Output: 20mV/dB; Output Impedance: 1k Ω; Connector: DB-9 plug
RS232 Interface: To computer for output some measurement results instantaneous values , also to mini-printer for printing
Transmission speed: 4800, 9600,115200 bps
USB Interface: available and no need device drive. Allow USB to be controlled via communication commands
Power Supply: 4×LR6 alkaline battery or rechargeable batteries
5 V external power supply
Battery Life: Longest time of 30 hours continuously with 4×LR6 alkaline battery
Dimensions: 260 (H) x 80 (W) x 30 (D), mm.
Weight: 0.35 kg. (include batteries)
EMC: Type X
Environment
Working Temperature: -10 ~ 50 °C,
Storing Temperature: -20 ~ 70 °C,
Relative Humidity: 25 ~ 90 %
Accessories: AC adaptor, USB cable, RS232 transmission cable, windscreen, hand strap, windscreen fall prevention rubber, carrying case, U-disk, user’s manual
Bluetooth Module: Wireless printing
