Introduction: The AWA6228+ multi-function sound level meter is a new generation noise measuring instrument using digital signal processing technology. It is an upgraded product of the AWA6228 series. A, C, Z three parallel (simultaneous) frequency weighting and F, S, I three parallel (simultaneous) time weighting, can simultaneously perform integral measurement, statistical analysis, 1/1 OCT analysis, 1/3 OCT analysis, FFT analysis, personal sound exposure, and measurement of reverberation time. The instrument has the advantages of large dynamic range and low power consumption. Modular design allows users to purchase the appropriate modules as needed. Can be widely used in environmental protection, occupational health, safety supervision, product inspection, scientific research and teaching, hall sound quality and other fields. Technical Parameters: Frequency range: 10 Hz to 20 kHz Upper measurement 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 also has B, D, T (custom), U (custom) weighting Time weighting: parallel (simultaneous) F, S, I, and Peak Indicator: 2.6-inch color screen display, resolution 240 × 320, display content is rich, when the backlight delay is normally open, the brightness is automatically adjusted, other can be manually adjusted Main measurement indicators: Lxyi, Lxyp, Lxeq, Lxmax, Lxmin, LxN, SD, SEL, LCpeak, etc. Note: x is A, C, Z, y is F, S, I, N is 1 to 99 users can choose an integer Peak C level measurement range: Low range: 50 dB to 132 dB High range: 60 dB to 142 dB Integration measurement time: Manual, 1s to 99 hours arbitrary setting or binning setting A/D sampling frequency: 48k times / sec 24-hour automatic monitoring: 1 time per hour, each measurement time can be selected from 1 min to 1 hour, continuous measurement of multiple groups of 24 hours FFT analysis function: 2048 lines, sampling frequency: 48kHz, 24kHz, 12kHz, 6kHz, 3kHz optional FFT analysis window function: rectangular window, Brinell window, Hanning window, flat top window Internal calendar clock: Error less than 1 minute / month, GPS time, school time Power supply: 4 AA alkaline batteries, can be used continuously for more than 30 hours, meeting the requirements of 24-hour continuous monitoring in environmental monitoring Dimensions (mm): 260 × 80 × 30 Quality (kg): 0.35 Calibration: AWA6223F multi-frequency point calibrator is used to meet the requirements of the sound level calibrator in HJ 707-2014 ambient sound monitoring technical specification. Printing function: AH40 dot matrix printer, print data can be saved for a long time Bluetooth wireless transmission: Internally embedded Bluetooth module to send measurement results to the specified mobile phone or computer
Introduction: The AWA6228+ multi-function sound level meter is a new generation noise measuring instrument using digital signal processing technology. It is an upgraded product of the AWA6228 series. A, C, Z three parallel (simultaneous) frequency weighting and F, S, I three parallel (simultaneous) time weighting, can simultaneously perform integral measurement, statistical analysis, 1/1 OCT analysis, 1/3 OCT analysis, FFT analysis, personal sound exposure, and measurement of reverberation time. The instrument has the advantages of large dynamic range and low power consumption. Modular design allows users to purchase the appropriate modules as needed. Can be widely used in environmental protection, occupational health, safety supervision, product inspection, scientific research and teaching, hall sound quality and other fields.
