8921 & 8922 AT A GLANCE
DIGITAL DISPLAY WITH ANALOG GRAPH! BACKGROUND NOISE ABSORBER ! MAX / MIN RECORD, MAX HOLD ! RS232 INTERFACE ! MEETS IEC 651, TYPE 2 CLASS !
FEATURE
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Meets IEC 651;ANSI S1.4, type2 standard. |
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Quasi-Analog bar indicator:1dB display steps, 50dB display range, updated every 50ms. |
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Measurement level range features 6 ranges. |
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Background noise absorber mode filters ambient sounds. |
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Fast( 125 msec.) or Slow( 1 sec.) respone 3 times. |
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Record Max / Min. & Maximum Hold function. |
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A / C Weighting selectionable. |
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Microphone : 6mm(Dia.)electric condenser type. |
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Backlight for use in dark areas (Model 8922). |
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Low battery indicator. |
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Optional RS232 software (Disk & PC cable). |
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Serial formt: 2400Baud rate, 1 Stop bit, 8 Data bits. N: xxx, xdB |
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Monitor the sound levels from traffic noise, alarm systems and workplace machinery, |
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Multi-Freguency calibration to ensure quality stable. |
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| SPECIFICATION |
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Auto range : |
30-130dB. |
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Big LCD : |
42x64mm. |
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Measurement level range :
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6 ranges in 10-dB steps:30-80dB, 40-90dB, 50-100dB, 60-110dB, 70-120dB, 80-130dB. |
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Accuracy : |
±1.5dB ( under reference condition ) |
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Digital display : |
3-1/2 dight LCD, 0.1dB resolution updated 0.5seconds. |
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Analog output : |
AC:0.707vrms( at full scale )
DC:10mV/ dB |
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Measurement frequency range : 31.5Hz-8KHz. |
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Measurement level A weighting : |
30dB~130dB. |
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Measurement level C weighting : |
35dB~130dB. |
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Operation temperature : |
0~50℃,10~90%RH |
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Storage temperature : |
-20~60℃ |
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Meter includes hard ABS case, battery, manual. |
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Battery life : |
20 hours typical (9V) |
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Dimensions (meter WxHxT) : |
80 x 256 x 38mm |
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