1. Overview

The HS6226 multifunctional sound level meter is a new generation noise measurement instrument that uses digital signal processing technology. It has three parallel (simultaneous) frequency weighting networks A, C, and Z, and three parallel (simultaneous) time weighting networks F, S, and I. It can measure multiple evaluation indicators simultaneously; The dynamic range is greater than 110dB; Flash RAM can reliably store measurement result data, and SD card can also be used to store data. The instrument has functions such as large capacity storage, recording, USB flash drive, card reader, etc. Modular design allows users to select corresponding modules according to their needs. In addition to the advantage of being suitable for environmental noise monitoring, it can also be embedded with a GPS positioning system (optional) to measure noise while providing location information and measuring motion speed; External micro printer, capable of on-site printing of measurement results; The performance of this instrument meets the requirements of IEC61672 standard and GB/T 3785.1-2010 standard for level 1 sound level meters. It also meets the requirements of IEC6260 and GB/T3241 standards for level 1 octave band filters. Compliant with the requirements of three new standards issued by the Ministry of Environmental Protection, including GB3096-2008, GB12348-2008, and GB22337-2008, it can be widely used in fields such as environmental protection, labor hygiene, industrial and mining enterprises, scientific research and teaching, environmental noise measurement, machine equipment noise measurement, and building acoustics measurement.

2. Main features
2.1 Adopting a 128 × 128 dot matrix 3-inch LCD, the display screen is large and the display content is rich.
2.2 110dB ultra large dynamic range, no need to change range.
2.3 Frequency weighting, time weighting, and detection are all implemented using digital signal processing technology
Simultaneously measure multiple indicators such as frequency weighting of A, C, and Z, and time weighting of F, S, and I.
2.4 Using Chinese character menus for easier operation.
2.5 can measure and display 12 indicators in real-time (simultaneously).
2.6 The measurement results shall be saved in Flash RAM or stored in large capacity on an SD card.
2.7 Directly view measurement result data, statistical distribution chart, cumulative distribution chart, and 24-hour distribution chart on the instrument.
2.8 Adjustable brightness LED backlight and working status indicator light, convenient for night monitoring and remote observation of instrument working status.
2.9 It can automatically correct the noise of the machine and improve the measurement accuracy at low sound levels.
2.10 Dynamic bar charts and waveform charts can be used to visually reflect the trend of noise changes.
2.11 The measurement location name can be freely entered by the user in both Chinese and English, and supports Chinese Pinyin input.
2.12 By configuring microphones with different sensitivities, different measurement ranges can be obtained.
2.13 External micro printer, capable of on-site printing of measurement results.
2.14 Communication output can be connected to monitoring headphones for subjective evaluation (optional headphones).
2.15 Internally embedded GPS positioning system can measure noise while also obtaining accurate position information and motion speed (optional).
2.16 External solar cell module, capable of working in the field for extended periods of time (optional).
2.17 Large capacity SD card storage, supporting up to 2GB
2.18 Precise recording and playback function, with a maximum recording time of 1 hour.
2.19 USB function: After connecting the instrument to the computer via a USB interface, convert the SD card to a USB drive.
2.20 Can read SD card contents to computer.

3Main performance indicators
3.1 Instrument type: Type 1
3.2 Microphone: Pre polarization test condenser microphone.
3.3 Frequency range: 10Hz to 20kHz ± 1dB (excluding microphone).
3.4 Dynamic range: greater than 110dB (weighted by A), with an optional upper limit of 120-140dB.
3.5 Frequency weighting: Parallel (simultaneous) A, C, Z
3.6 Time weighting: Parallel (simultaneous) F, S, I
3.7A/D bit count: 24 bits
3.8 Sampling frequency: 48kHz
3.9 Detection Characteristics: True RMS Digital Detection.
3.10 Display: 128 × 128 dot matrix LCD display, 16 level adjustable contrast, with LED backlight.
Real time measurement and display of more than 12 measurement indicators, statistical distribution maps, cumulative distribution maps, and 24-hour distribution maps.
3.11 Main measurement functions: statistical analysis, 24-hour automatic monitoring, airport noise measurement, 1/1 octave band analysis, 1/3 octave band analysis.
3.12 Main measurement indicators: Lxyi, Lxyp, Lxeq, Lxmax, Lxmin, LxN, SD, SEL, E, LCpeak, Td, LEPN, etc.
Note: x is A, C, Z, y is F, S, I, N is 5, 10, 50, 90, 95
3.13 Measurement Time: Manual, set from 1 second to 99 hours in any setting or in stages.
3.14 Octave frequency spectrum analysis function.
Filter type: Parallel (real-time) octave band.
Filter center frequencies: 16Hz, 31.5Hz, 63Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, 16kHz
(There is no 16Hz or 16kHz center frequency in level 2 configuration).
3.15 1/3 octave band spectrum analysis function.
Filter type: Parallel (real-time) double frequency range
Compliant with standards: IEC61260 Level 1, GB3241 Level 1
Filter center frequency: 12.5Hz, 16Hz, 20Hz, 25Hz, 31.5Hz, 40Hz, 50Hz, 63Hz, 80Hz, 100Hz
125Hz、160Hz、200Hz、250Hz、315Hz、400Hz、500Hz、630Hz、800Hz、1kHz、1.25kHz、
1.6kHz、 2kHz、2.5kHz、 3.15kHz、4kHz、5kHz、6.3kHz、8kHz、10kHz、12.5kHz、16kHz
At level 2, there are no center frequencies of 12.5Hz, 16Hz, 20Hz, 12.5kHz, or 16kHz.
3.16 Data storage: 128 sets of statistical analysis results with distribution maps, large capacity SD card storage.
3.17 Output interface: AC (alternating current), DC (direct current), RS-232C to computer or micro printer, USB interface.
1) Communication output: The output signal amplitude is optional, and the output can be connected to 8 Ω monitoring headphones.
2) DC output: Output ratio: 20mV/dB. The output voltage is 2V at 100dB.
3) RS232 interface: Connected to a computer, it can output real-time measurement data or saved measurement results.
Connecting to a micro printer can print measurement results and related charts.
4) USB interface: After connecting the instrument to the computer through a USB cable, the instrument will be converted into an external USB drive.
3.18 GPS positioning function (optional)
3.19 SD Card Large Capacity Storage Function
3.20 Recording function, recording time: 1 second to 1 hour
Playback: It can be played using instruments or computers.
3.21 Calendar clock: with a monthly error of less than 1 minute, capable of GPS timing and calibration, and equipped with a built-in backup battery.
3.22 Power supply: 4 LR6 (No. 5) batteries or 5V external power supply. The working power supply is about 120mA, with a maximum of about 200mA
3.23 Working temperature: -10 ℃~50 ℃, relative humidity: 20%~90%
3.24 Dimensions (mm): 285 × 81 × 33

4.Function selection reference table

1. Basic configuration

Host, printer, fan ball, data cable, SD card, CD, aluminum alloy box, manual, certificate of conformity, factory inspection form, etc
7.Choose accessories
GPS module, HS6020A calibrator, monitoring headphones, tripod, extension cable, extension pole, etc