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AZ-8921 / 8922 Sound Level Meter
(RS232)
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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.) response 3 times
- Record Max / Min. & Maximum Hold function
- A / C Weighting selectable
- Microphone: 6mm (Dia.) electric condenser type
- Backlight for use in dark areas (Model 8922)
- Low battery indicator
- Optional RS232 software (Disk & PC cable)
- Serial format: 2400Baud rate, 1 Stop bit, 8 Data bits. N:
xxx, xdB
- Monitor the sound levels from traffic noise, alarm systems
and workplace machinery
- Multi-Frequency calibration to ensure quality stable
Specification
|
Auto range |
30-130 dB |
Measurement level A weighting |
30dB~130dB |
|
Big LCD |
42 x 64 mm |
Measurement level C weighting |
35dB~130dB |
|
Measurement level range |
6 ranges in 10-dB steps: 30-80dB, 40-90dB,
50-100dB, 60-110dB, 70-120dB, 80-130dB |
Operation temperature |
0~50℃,
10~90%RH |
|
Accuracy |
±1.5dB ( under reference condition ) |
Storage temperature |
-20~60°C |
|
Digital display |
3-1/2 dight LCD, 0.1dB resolution updated
0.5seconds |
Battery life |
20 hours typical (9V) |
|
Analog output |
AC: 0.707vrms ( at full scale ) |
Dimensions (meter W x H x T) |
80 x 256 x 38mm |
|
DC: 10mV/ dB |
Meter includes hard ABS case, battery, manual |
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Measurement frequency range |
31.5Hz-8KHz |
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