Máy đo độ ồn tích phân, Type 1, phân tích phổ, có thể SD Model: SC420 Hãng sản xuất: CESVA – Tây Ban Nha Xuất xứ: Tây Ban Nha

Máy đo độ ồn tích phân, Type 1,  phân tích phổ, có thể SD

Model: SC420

Hãng sản xuất: CESVA – Tây Ban Nha

Xuất xứ: Tây Ban Nha

Tham khảo tại: http://www.cesva.com/en/products/sound-level-meters/sc420/

                                         

1.      Tính năng kỹ thuật:

-          Can be expanded with advanced measurement modes (see optional Modules)

-          Increased storage with MicroSD memory card, 4 GB class 4 microSD cards

-          Audio recording with pre-recording and voice comments

-          Automated Parameters: timers, DEN thresholds, external input: 1) Auto start/stop of measurement and logging2) Auto audio recording & pre-recording

-          Erasing backward (BACK ERASE function)

-          Built-in USB & BLUETOOTH® connectivity

-          Sensitivity, date & time change history

-          Free or diffuse sound-field correction options

2.      Thông số kỹ thuật:

-          Tham khảo chi tiết tại: http://datasheets.cesva.com/sc420_en.pdf

3.      Lựa chọn thêm:

STT	Thành phần	Mã Code
1	OCCUPATIONAL NOISE Code: DS420 What does it measure? -          Occupational noise mode simultaneously measures all the parameters necessary to evaluate the noise exposure of the worker with and without hearing protectors (SNR, HML and Octaves). Applications: -          Industrial acoustic -          Noise measurements for air conditioning installations (HVAC) -          Sound Insulation measurements -          Frequency analysis of industrial noise, environmental and labour -          Background noise in rooms	DS420
2	1/1 OCTAVE FILTERS Model: OF420 What does it measure? -          16 Hz to 16 kHz octave band filters analysis plus overall functions and NC and NR curves Applications: -          Sound insulation measurements: -          Noise measurement for air conditioning installations ( HVAC) -          Frequency analysis of industrial noise, environmental and labour -          Background noise in rooms	OF420
3	1/3 OCTAVE FILTERS Model: TF420 What does it measure? -          10 Hz to 20 kHz 1/3-octave band filters analysis plus overall functions Applications: -          Sound Insulation measurements in  third octave band -          Assessment of environmental noise (Corrections for the presence of tonal and impulsive components and low frequency content) -          Detection and identification of noise sources	TF420
4	REVERBERATION TIME Model: RT420 What does it measure? -          Reverberation time measurement by 1/1 and 1/3-octave bands using the interrupted noise and the integrated impulse response methods. Includes parameters for the evaluation of non-linear decay curves and the influence of the filters Applications: -          Evaluation of the reverberation time of rooms -          Measurement of sound absorption in a reverberation room -          Measurement of soud insulation in buildings and of construction materials	RT420
5	FFT ANALYSIS Model: FF420 What does it measure? -          FFT Analysis of 10000 lines from 0 to 20000 Hz (2 Hz/line) Applications: -          Detection and evaluation of the tonal components -          Frequency analysis of continuous and transient signals (industrial and environmental) -          Evaluation of tonal components according to ISO 1996-2 and DIN 45681.	FF420
6	ANALYSIS QUALITY AUDIO RECORDING Model: HI420 What does it measure? -          Records WAV (uncompressed) format audio files, 24 bits resolution, 48 kHz sampling frequency and constant gain for later analysis Applications: -          This mode can be advantageous independently of the application in which it is being used as it allows a perfect acquisition of the audio signal, to carry out a post processing and obtain additional information.	HI420