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Phone
18049952031/18017806506
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Address
3rd Floor, Building 79, Lane 4855 Guangfulin Road, Songjiang District, Shanghai (Daye Territory)
Shanghai Bangwo Instrument Equipment Co., Ltd
18049952031/18017806506
3rd Floor, Building 79, Lane 4855 Guangfulin Road, Songjiang District, Shanghai (Daye Territory)
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1、 Application scope and characteristics: 1 A. C and F sound level measurement records. 2. Real time 1/3 and 1/1 octave band spectrum analysis. 3. Linear spectrum display analysis. 4. Transient time-domain waveform recording and analysis. 2、 Main technical parameters and functions: 1. Compliant with standards: GB/3785 Type 1 and GB/3241. 2. Measurement range: (with 2 × 10-5Pa as reference) 3 25dB~135dB(A) 4. Frequency range: 20Hz to 20kHz 5. Frequency weighting: A, C, F (linear) 6. Detection characteristics: RMS, Peak factor ≥ 10 (sound level meter section) 7. Dynamic range: 60 dB 8. Range control: Eight levels of 30-100dB. 9. Sampling rate: 44.1 kHz 10 A/D acquisition card: 16 bits 11. Frequency resolution: 5.38Hz (FFT bandwidth). 12. Filter bandwidth: 1/3, 1/1 octave band. 13. Filter center frequency: 1/3:25-20000Hz, a total of 30 groups; 1/1:31.5~16000Hz, a total of 10 groups. 14. Sound calibration: 94dB, 1000Hz sound level calibrator. 15. Operating temperature:- 10℃~+50℃ 16. Relative humidity: 30% to 90% RH 17. Battery: DC6V, Four 5th alkaline dry batteries. 18. Computer: Pentium 4 processor, with over 128MB of memory, using internal or external A/D acquisition cards. 3、 Other: 1. Select attachments: calibrator, extension cable (10m/15m/30m), tripod, and dedicated AC accessories; 2. Size: (L × B × H) cm (29 × 10.6 × 6.5); Weight approximately: 400 grams; 3. Basic configuration: Sound level meter, A/D acquisition card, communication cable, dedicated software (installation), portable box, hood; |