เครื่องวัดเสียง รุ่น AZ-8922 แบรนด์ AZ INSTRUMENTS
Digital Sound Level Meter รองรับระบบ บลูทูธและไวไฟ(OPTION)
Features:
- Quasi-Analog bar indicator:1dB display steps, 50dB display range, updated every 50ms.
- Measurement level range features 6 ranges.
- Background noise absorber mode filters ambient sounds.
- Fast( 125 msec.) or Slow( 1 sec.) respone 3 times.
- Record Max / Min. & Maximum Hold function.
- A / C Weighting selectionable.
- Microphone : 6mm(Dia.)electric condenser type.
- Backlight for use in dark areas (Model 8922).
- Low battery indicator.
- Optional RS232 software (Disk & PC cable).
- Serial formt: 2400Baud rate, 1 Stop bit, 8 Data bits. N: xxx, xdB
- Monitor the sound levels from traffic noise, alarm systems and workplace machinery,
- Multi-Freguency calibration to ensure quality stable.
Specifications
- Auto range :30-130dB.
- Big LCD :42x64mm.
- Measurement level range : 6 ranges in 10-dB steps:30-80dB, 40-90dB, 50-100dB, 60-110dB, 70-120dB, 80-130dB.
- Accuracy : ±1.5dB ( under reference condition )
- Digital display :3-1/2 dight LCD, 0.1dB resolution updated 0.5seconds.
- Analog output :AC:0.707vrms( at full scale )
- DC:10mV/ dB
- Measurement frequency range : 31.5Hz-8KHz.
- Measurement level A weighting :30dB~130dB.
- Measurement level C weighting :35dB~130dB.
- Operation temperature :0~50,10~90%RH
- Storage temperature :-20~60
- Meter includes hard ABS case, battery, manual.
- Battery life :20 hours typical (9V)
- Dimensions (meter WxHxT) :280*80*12mm
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