Multi functional sound level meter AWA6228+type

Overview
The AWA6228+multifunctional sound level meter is a new generation noise measurement instrument that uses digital signal processing technology and is an upgraded product of the AWA6228 series. A. The three parallel (simultaneous) frequency weights of C and Z, as well as the three parallel (simultaneous) time weights of F, S, and I, can simultaneously perform integral measurement, statistical analysis, 1/1 OCT analysis, 1/3 OCT analysis, FFT analysis, personal sound exposure, and reverberation time measurement. The instrument has the advantages of large dynamic range and low power consumption. Modular design allows users to select corresponding modules according to their needs. It can be widely applied in fields such as environmental protection, occupational health, safety supervision, product inspection, scientific research and teaching, and hall sound quality.

technical indicators

National standards implemented	GB/T 3785-2010 (IEC 61672-1:2013) Level 1 GB/T 3241-2010 Level 1/IEC 61260-1:2014 Class 1
Execution of metrological verification regulations	JJG 188-2017 Sound Level Meter, JJG 778-2005 Noise Statistical Analyzer, JJG 449-2014 Octave and Fractional Octave Filters
Other compliant standards	IEC60651 Class 1，IEC60804 Type 1，IEC61252 ，GB/T 15952 ，ANSI S1.4A-195 Type1，ANSI S1.43 Type1 , ANSI S1.11-2004 Class 1，ANSI S1.25-1991，DIN 45675（1997-07） JJF 1555-2015
frequency range	10 Hz～20 kHz
Measurement upper limit	Low range: 132 dB (A), high range: 142 dB (A), customizable 162 dB (A)
Self generated noise	Low range: less than 12 dB (A), 17 dB (C), 22dB (Z) High range: less than 23 dB (A), 27 dB (C), 32 dB (Z)
Linear range	Greater than 112 dB (A)
Frequency weighting	Parallel (simultaneous) A, C, Z 1/3 OCT with B, D, T (custom), U (custom) weighting
Time weighting	Parallel (simultaneously) F, S, I, and Peak
indicator	2.6-inch color screen display, resolution 240 × 320, rich display content. When the backlight delay is normally on, the brightness is automatically adjusted, and others can be manually adjusted
Main measurement indicators	Lxyi、Lxyp、Lxeq、Lxmax、Lxmin、LxN、SD、SEL、LCpeak 等 Note: x is A, C, Z, y is F, S, I, N are 1-99 integers that users can choose from
Peak C-level measurement range	Low range: 50 dB~132 dB High range: 60 dB~142 dB
Integral measurement time	Manual, set freely or in stages from 1 second to 99 hours
A/D sampling frequency	48k times/second
24-hour automatic monitoring	Measure once per hour, with each measurement time ranging from 1 minute to 1 hour, and can continuously measure multiple groups for 24 hours
Real time parallel analysis of filters	1/1倍频程： 16 Hz、31.5Hz、63Hz、125Hz、250Hz、500Hz、1kHz、2kHz、4kHz、8kHz、16 kHz
	1/3倍频程： 12.5 Hz、16Hz、20Hz、25Hz、31.5Hz、40Hz、50Hz、63Hz、80Hz、100Hz、125Hz、160Hz、200Hz、250Hz、315Hz、400Hz、500Hz、630Hz、800Hz、1000Hz、1250Hz、1600Hz、2000Hz、2500Hz、3150Hz、4000Hz、5000Hz、6300Hz、8000Hz、10000Hz、12500Hz、16kHz、20kHz
FFT analysis function	2048 line, sampling frequency: 48kHz, 24kHz, 12kHz, 6kHz, 3kHz optional
FFT analysis window function	Rectangular window, Brinell window, Hanning window, flat top window
store	Equipped with 3 MB as standard, it can store up to 2663 sets of statistics, 3328 sets of integrals, 3328 sets of OCT, 1664 sets of 1/3 OCT or 121 sets of FFT analysis results, or can record up to 34 hours of personal sound exposure data in a single session, for a total of up to 320 hours
output interface	1) Communication output, output power: 150 mW, can be connected to 8 Ω monitoring headphones 2) DC output: Output a DC signal proportional to the current displayed sound pressure level, 15 mV/dB 3) RS232 interface: communicates with a computer and can print measurement results and related charts through a related micro printer 4) USB interface: communicate with computer, firmware upgrade, compliant with USB1.1 standard, compatible with USB2.0 standard
Internal calendar clock	Error less than 1 minute/month, GPS timing and calibration available
power supply	4 AA alkaline batteries, capable of continuous use for over 30 hours, meeting the requirement for 24-hour continuous monitoring in environmental monitoring
Dimensions (mm)	260×80×30
Mass (kg)	0.35
working environment	Working temperature range: -15 ℃ to 55 ℃; Relative humidity: 20% to 90%; Atmospheric pressure: 65 kPa to 108 kPa
SD card storage module (optional)	Maximum support for 32 GB
Recording function (optional)	Recording accuracy: optional 48kHz/32-bit and 8kHz/8-bit Trigger method: Synchronize with integral measurement or record the specified time after exceeding the limit. The longest continuous recording time is 1 hour at 48kHz/32-bit and 16 hours at 8kHz/8-bit.
calibration	Supporting the use of AWA6223F multi frequency point calibrator, meeting the requirements for sound level calibrators in HJ 707-2014 Environmental Sound Monitoring Technical Specification
Print function	AH40 dot matrix printer, printing data can be saved for a long time
GPS positioning (optional)	Internally embedded GPS positioning system, measuring noise while obtaining measurement point position and motion speed information
Bluetooth wireless transmission	Internally embedded Bluetooth module, sending measurement results to designated mobile phones or computers

Function selection and application

place	Configuration Name	Remarks
host	AWA6228+host (including test microphone, preamplifier, etc.)	(Measurement software must be optionally selected)
Software selection	S6228+-00000 Basic measurement function
	S6228+-00101 Noise Statistical Analysis
	S6228+-00202 1/1 OCT analysis software
	S6228+-00303 1/3 OCT analysis software
	S6228+-00404 FFT analysis software
	S6228+-00013 DOSIMeter software
	S6228+-00509 digital recorder (data acquisition and recording)
	S6228+-00508 Reverberation Time Measurement Software
Hardware selection	GPS positioning module (built-in, including GPS antenna)
	SD storage module (built-in, including 32GB capacity SD card)
	AWA8570A power module
	AWA8570B SMS module
	AWA8570AB GSM/solar cell module
	AWA8732 type extension cable (5m, 10m, 20m)
	Small tripod (including threaded fixture)
	AWA2581 Outdoor Monitoring Box
	AH40 printer (including 5 rolls of printing paper and instruction manual)