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USB interface storage professional noise meter DT-8851
USB interface storage professional noise meter DT-8851
Product details
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This noise meter complies withIEC61672-1 CLASS2
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Measurement of MAX and MIN values
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Overload warning
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Low load warning
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AandCWeighted network selection is fast（FAST）Slow down（SLOW）Response time selection
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ACandDCAnalog signal output, can be connected to a frequency analyzer orX-YPerform data statistical analysis on the axis recorder.
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Operation steps
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Turn on the power switch.
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pressLEVERButton, select the appropriate measurement gear; Not appearing‘UNDER’Or‘OVER’The symbol shall prevail.
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To measure the perceived noise level, please choose‘dBA’； To measure and analyze mechanical noise levels, please select‘dBC’.
- To select the real-time noise level, please selectFASTIf you want to obtain the average noise level at that time, please selectSLOW.
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Hold the noise meter in hand or mount it on a tripod, with the microphone at a distance of approximately from the sound source1~1.5Measurement of distance in meters.
| 8851 | 8852 | |
| standard | This noise meter complies with IEC61672-1, Level 2 standard, IEC61672 TYPE2, and ANIS SL4 TYPE2 | |
| Range (with analog strip) | LO:30dB-80dB Med:50dB-100dB Hi:80dB-130dB Auto:30dB-130dB | |
| error | 1.4dB | |
| dynamic range | 50dB | |
| frequency response | 31.5Hz-8KHz | |
| Frequency weighting characteristics | A and C | |
| Time weighting | Fast 125 milliseconds, slow 1 second | |
| sensor | 1/2-inch polarized capacitive sensor | |
| display | 4-digit, resolution 0.1dB, numerical update; 2 times per second | |
| Analog signal output | AC/DC mV signal output from headphone jack | |
| AC=1Vrms,DC=10mV/Db | ||
| data output | Connect to computer with USB interface | |
| 35700 data storage units | * | |
| 35mm headphone jack | * | * |
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