Instrument Type |
GA231I | GA131I | GA231E | GA131E | GA131C | GA131M | GA131B |
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MK250 Microphone - Type 1 |
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Castle Aco Mic - Type 2 |
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"A", "C" and "Z" Weighting |
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Slow, Fast, Impulse, 10ms & Peak |
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Fast, Slow |
Linearity Range |
24-140 | 24-140 | 24-140 | 24-140 | 24-140 | 24-140 | 24-140 |
Peak: Plot of logged value |
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LMax RMS & Event Time |
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LMin RMS & Event Time |
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Lp (Sound Pressure Level) |
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1/1 Octave Bands |
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1/3 Octave Bands |
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?/td> | |||||
NR - Noise Rating Level |
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?/td> | ||
Hearing Protector Attenuation |
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?/td> | ||
LAeq, T with time displayed |
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LAE (SEL) |
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Ltm3 & Ltm5 |
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Lex (Lepd) |
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Projected Lex (Lep,d) |
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Dose% |
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Projected Dose% |
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Exchange Rate 3dB/4dB/5dB |
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Criterion Level 80/85dB/90dB |
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Backlit LCD |
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Start/Stop Programmable |
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?/td> |
Selectable Log Periods |
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5 Ranges in 10dB steps |
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Software Calibration |
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LAF (Night Noise) |
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?/td> | ||
Lns - 7 Programmable |
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?/td> | ||
Unlimited set-up templates |
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?/td> |
Time Intervals 1s - 99h |
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One-button logging |
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Pause/Play Mode |
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Standard Memory |
32Mb | 32Mb | 32Mb | 32Mb | 32Mb | 32Mb | 32Mb |
Maximum Memory |
512Mb | 512Mb | 512Mb | 512Mb | 512Mb | 512Mb | 512Mb |
RS-232-Bi Directional |
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High-speed PC download |
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Direct Print-out |
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Elapsed Time |
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Real Time Clock & Calendar |
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AC Output |
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