NSLM-5628 –SM28A- SM28B
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Introduction:
Aplication:be used for measuring noise in onthespot environment and industry,especially suitable for the department of environmental supervision and healthy and epidemic prevention.
Characteristics:
·Instead of some traditional sound level meters, its stability and reliability was greatly increased by using digital detector technology.
·Direct measurement of equivalent continuous sound level Leq and noise exposure, etc.
·Dot matrix LCD,direct display Leq,clear and intuitive.
Model | NSLM-5628 Integrating Sound Level Meter | SM28A Integrating Sound Level Meter | SM28B Personal Sound Exposure Meter |
Standard | GB/T3785 2,IEC61672 2 | GB/T15952 2 | |
Frequency Range | 20HZ～12.5KHz | 20HZ～10KHz | |
Measuring Range | 30dB～130dB(A) 35dB～130dB(C) | 35dB～130dB | |
Type of the microphone | Φ127mm Electret condenser microphone | ||
Frequency weighted | A,C | ||
Time-weighted | Fast(F),Slow(S) | ||
Range conversion | Manual（high,middle,low） | ||
Measuring function | Lp,Leq,LAE,Lmax,Lmin,E | ||
Measuring time | 10s,1min,5min,10min,15min,20min,30min,1h,8h,24h,Man | ||
Data storage | 500 groups data of 50000 equivalent sound level | ||
clock | Real-Time Clock，back-up battery in the machine | ||
output | AC signal | ||
Data interface | RS232 interface,can be connected with printer and computer | ||
Power supply | Battery:2×LR6 | ||
Dimensions | 200mm×63mm×30mm | ||
Weight | 0.2kg | ||
