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Sound Level Meter Portable Digital Noise Measurement Instrument – AWA6228+ 1

Sound Level Meter Portable Digital Noise Measurement Instrument – AWA6228+ 2

Sound Level Meter Portable Digital Noise Measurement Instrument – AWA6228+ 3

Sound Level Meter Portable Digital Noise Measurement Instrument – AWA6228+ 4

Sound Level Meter Portable Digital Noise Measurement Instrument – AWA6228+

Handheld Noise Level Meter for Real-time Sound Measurement – AWA6228+

A handhold noise measuring instrument
Multifunction and user- friendly sound level meter(integrating SLM, 1/1 OCT, 1/3 OCT analyzer, Noise dosimeter)
240×320 color screen
Measurement range 20~142dB
Synchronously do statistical, real-time 1/1 OCT, 1/3 OCT, and noise dosimeter measure
Comply with IEC 61672 Class 1 and IEC61260 Class 1 and IEC 61252
CE Mark
32G SD card function for precise audio recording, GPS positioning

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SPECIFICATIONS

Fulfills Standards	IEC 61672 Class 1
	IEC 61260 Class 1
	IEC61252:2002
	IEC 60651:2001 Type 1
	IEC 60804: 2000 Type 1
	ANSI S1.4: 1983 Type 1
	ANSI S1.4A:1985 Type 1
	ANSI S1.43:1997 Type 1
	ANSI S1.25:1991
Microphone+ Preamplifier	1/2” prepolarized condenser microphone + AWA14601 removable preamplifier (Sensitivity Level: -28dB)
Correction Function	Diffusion field correction in order to comply with standards ANSI S1.4
Frequency Range	10 Hz ~ 20 kHz ± 1 dB (not including microphone)
Total Measurement Range	20dB-142dB (145dB Peak)
Self-generated Noise	<12 dB(A), 17 dB(C), 22 dB(Z)
Frequency Weighting	Parallel (simultaneous) A, C, Z, B, D and user1&2-defined weighting
Time Weighting	Parallel (simultaneous) F, S, I, Peak
A/D Bits:	24 bits
Sampling Frequency	48 kHz
Calibration	Using Sound Calibrator Class 1 model AWA6021A
Correction Function	Diffusion field correction in order to comply with standards ANSI S1.4
Delay Time	The meter can delay 0~99s after pressing start measuring button
Back Erase Function	Elimination of undesired noise; example barking dogs, cars, doors
Display	240×320 color screen, adjustable brightness, backlight can be closed
Display Resolution	0.1 dB
Low battery indication	Symbol indicate low battery
Data Storage (32 Mb FLASH RAM. SD memory card is optional)	3328 groups of integrating measuring results only.
	3328 groups of statistical results only (‘statistical 1’ and ‘statistical 2’ analysis index are same.)
	2663 groups of statistical results only (‘statistical 1’ and ‘statistical 2’ analysis index are different.)
Print	Mini-printerAH58F or AH40
Internal Clock	Error less than 1 min/month
Output Interface	AC Output (full scale): 1.0VAC RMS; Output Impedance: 1k Ω; Connector: φ3.5 mm stereo plug
	DC Output: 20mV/dB; Output Impedance: 1k Ω; Connector: DB-9 plug
	RS232 Interface: To computer for output some measurement results instantaneous values , also to mini-printer for printing Transmission speed: 4800, 9600,115200 bps
	USB Interface: available and no need device drive. Allow USB to be controlled via communication commands
Power Supply	4×LR6 alkaline battery or rechargeable batteries
Power Supply	5 V external power supply
Battery Life	Longest time of 30 hours continuously with 4×LR6 alkaline battery

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