Sound Level
Merk : AZ Instrument
Model : 8922

Specifications :
Technical Specification
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~ 50oC, 10~ 90% RH
Storage temperature : -20~ 60oC
Meter includes hard ABS case, battery, manual. 20 hours typical ( 9V)
Battery life :
Dimensions ( meter WxHxT) : 80 x 256 x 38mm

DIGITAL DISPLAY WITH ANALOG GRAPH!
BACKGROUND NOISE ABSORBER !
MAX / MIN RECORD, MAX HOLD !
RS232 INTERFACE !
MEETS IEC 651, TYPE 2 CLASS !

Feature

Meets IEC 651; ANSI S1.4, type2 standard
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

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