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

frequency range

20 Hz～12.5kHz

measureRange

28～133 dB（A）；33～133 dB（C）；40～133 dB（Z）

Linear range

105dB（A）

Frequency weighting

Parallel (simultaneous) A, C, Z

Time weighting

Parallel (simultaneous) F S、I

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、SDLd, Ln, Ldn, etc. measured automatically 24 hours a day.

Note: x is A, C, Z, y is F, S, I, N are 1-99 integers that users can choose from

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

Storage

32Mb, 3300 sets of single statistical analysis results with distribution maps

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

work environment

Working temperature range:- one0℃～50℃； Relative humidity: 20% to 90%; Atmospheric pressure: 65 kPa to 108 kPa

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

Printing function

AH40 dot matrix printer, printing data can be saved for a long time

host

AWA5688 host (including test microphone, preamplifier, etc.)

Software selection

S5688-00000 Basic measurement functions

S5688-00101 Noise Statistical Analysis

S5688-00202 1/1 OCT analysis software

S5688-00303 1/3 OCT analysis software

S5688-00404 FFT analysis software

S5688-00013 DOSIMeter software

S5688-00509 digital recorder (data acquisition and recording)

S5688-00508 Reverberation Time Measurement Software

hardwareOptional

GPS positioning module (built-in, including GPS antenna)

SD storage module

(Built in, including 32GB 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)