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Product Code: 265

Brand:Sound level meter

NA98 Series

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Introduction:

Aplication: Mainly be used for automatic measurement of environmental noise， also can be used for other noise measurements

Characteristics:

·Instead of some traditional sound level meters, its stability and reliability was greatly increased by using digital detector technology

·128×64 dot matrix LCD,with background light, high capacity,can display both data and chart.

·With data acquisition function,can be used for the noise measurement around airport.

·Large LCD,with background light

·Can be connected with micro-printer to print measurement results and computer to process and archive.

·Instantaneous sound level output

Technical Specification

Model	NA98 Multi-functional Noise Analyzer	NA98A Multi-functional Noise Analyzer	NA98C Multi-functional Noise Analyzer
Standard	GB/T3785 2,IEC61672 2,JJG188-2002 2
Frequency Range	20HZ～12.5KHz
Measuring Range	30dB～130Db(A) 35dB～130Db(C)		35dB～130dB
Type of the microphone	Φ127mm Electret condenser microphone
Frequency weighted	A,C,Z(no weighting)	A,C	A,C
Time-weighted	Fast(F) Slow(S)
Range conversion	Manual（high,middle,low）
Measuring Function	Lp,Leq,LAE,LN,SD.Lmax.Lmin,L5,L10,L50,L90,L95,Ld,Ln,Lch and dynamic bar chart of instantaneous value		Lp,Leq.LAE,LN,SD,Lmax,Lmin,L5,L10,L50,L90,L95
Data acquisition function	the noise calculation around airport	———	———
Data Storage	500 groups data or 80 groups data per 24 hours		500 groups data
Display Model	128×64 dot matrix LCD	Special homemade large screen LCD	2×8 LCD character dot matrix
Clock	Real-Time Clock，back-up battery in the machine
output	AC signal		———
Interface	RS232 interface
Power supply	Battery:4×LR6(5#),or 6V DC external power supply		Battery:2×LR6
Dimensions	230mm×72mm×30mm		200mm×63mm×30mm
Weight	0.4kg		0.3kg

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