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One Application scope and characteristics:
The main performance meets the requirements of JJG188-2002 Sound Level Meter Verification Regulations and IEC61672 standard for Level 2 sound level meters. The HS6288B noise spectrum analyzer is a pocket sized intelligent noise measurement instrument that integrates several functions such as integration, noise statistics, noise spectrum, and noise acquisition. It has many innovations in design and function, and can meet various measurement requirements. This instrument has a large screen LCD display, built-in 1/1 spectrum analysis, clock setting, automatic measurement and storage of equivalent continuous sound level, statistical sound level, etc. It is equipped with a printer that can automatically print various measurement results. Through the RS-232C interface, the host communicates with the microcomputer and outputs and prints the measurement results. The measurement results can be stored in the instrument for a long time. This instrument has a compact structure, beautiful appearance, multiple functions, and high degree of automation. It can be used for measuring environmental noise, as well as for measuring industrial noise in labor protection, industrial hygiene, and various machines, vehicles, ships, electrical appliances, and other industries.
II Main technical indicators and functions:
1. Measurement range: (with 2 × 10-5Pa as reference)
1) A-level: 30-135dB;
2) C-level: 40-130dB
2. Frequency range: 20Hz to 12.5kHz
3. Detector characteristics: LMS true RMS, peak factor: 3
4. Time weighting: F (fast), S (slow), maximum value retention.
5. 5. Measurement time setting: Man (manual), 10 s、1min、5 min、10 min、 15 min、20 min、1h、4h、8h、24h、Regular( (Full time).
6. Automatic measurement function: Leq, L5, L10, L50, L90, L95. Lmax, SD, Ld, Ln, Ldn, and 1/1 spectrum, etc.
7. Filter characteristics: 1/1 octave band; Center frequencies: 31.5Hz, 63Hz, 125Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz
8. Automatic storage of measurement data: 500 sets of single data, 50 sets of hourly data, and 50 sets of filter automatic measurement data.
9. Interface: RS-232C, can be connected to a matching printer and communicate with a microcomputer to print measurement data and output spectrum histograms.
10. Calibration: Use HS6020 sound level calibrator, sound level: 94dB, frequency 1kHz.
11. Display: 54mm × 24mm large screen LCD digital display, with analog meter hands, measurement method, measurement time and clock, and 1/1 center frequency display function.
12. Power supply: 5 LR6 high-energy alkaline batteries, DC 7.5V, and equipped with an external power input socket.
III Others:
1. Select attachments: calibrator, extension cable (5/10/15m), tripod.
2. Dimensions: Host: 240mm × 81mm × 31mm, Printer: 178mm × 81mm × 31mm
3. Weight: The host weighs about 400 grams, and the printer weighs about 410 grams.
4. Basic configuration: Host, printer (including rechargeable battery and external power supply), shelf, CD, carrying case, hood.
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