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企業(yè)認(rèn)證：
價(jià)格：電議
所在地：北京
型號(hào)：混響時(shí)間測(cè)定，聲源切斷法，脈沖響應(yīng)反向積分法
更新時(shí)間：2017-03-13
瀏覽次數(shù)：1225
公司地址：北京市豐臺(tái)區(qū)航豐路1號(hào)院2號(hào)樓20層2011室(電梯層23層2311)
王淵(先生)
| 北京世紀(jì)建通技術(shù)開(kāi)發(fā)有限公司是北京世紀(jì)建通科技股份有限公司（建通科技股票代碼：839144 |
sc420_en.pdf
SC420中文.pdfIntegrating Sound level meter class 1 with audio recording expandable to spectrum analyzer for third octave bands
The ON&PLAY philosophy has been developed to be intuitive - getting first time users up & running quickly & providing a stress-free return to measurements, even after long periods of inactivity.
ON&PLAY offers a simple and enjoyable experience from the first moment of contact with the device.
With ON&PLAY, measurement has never been so easy.
The information measured by the SC420 (final results and time histories), audio files and voice notes are saved on the MicroSD card inserted into the SC420.
once the measurements are complete and the SC420 is powered-off, the MicroSD card can be removed and inserted into a computer. The data can then be transferred using the program 'Memory Download' - the download can be completed much faster this way.
4 GB class 4 microSD cards have been tested successfully.
The SC420 is an instrument that stands out for its power, versatility & ergonomics. It delivers high performance as a Class 1 integrating sound level meter (in accordance with IEC 61672, ANSI S1.4 and ANSI S1.43).
Thanks to its modular platform, the SC420 can be expanded with advanced measurement options such as 1/3-octave band spectral analysis, FFT analysis and reverberation time measurement.
The SC420 has a complete system of automated parameters, such as starting & stopping measurement and audio recording. Automatic timers and triggers are also available when exceeding threshold by DEN time-zones .
Its power and versatility offer infinite combinations which will provide optimal performance for even the most demanding of users.
The SC420 is designed to work as an automatic continuous noise monitoring unit. An environmental monitoring powering option is available, which allows measurements to be resumed after recovery from a power failure.
Optimal file structuring allows efficient data transfer & manipulation; this includes downloading while measuring and erasing parts that have already been downloaded.
The SC420 can record audio files (listening quality), whilst it logs acoustic functions, facilitating its subjective evaluation and the recognition of sound sources.
The SC420 communicates with a PC through a USB port and through Class 1 wireless Bluetooth® communication, in order to download & manipulate data, as well as allowing external control and real time visualization.
With the Back erase function, the SC420 can delete the last 10 seconds of the measurement in progress. This option is ideal when unwanted noise events occur during measurement.
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).
16 Hz to 16 kHz octave band filters analysis plus overall functions and NC and NR curves
10 Hz to 20 kHz 1/3-octave band filters analysis plus overall functions
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
FFT Analysis of 10000 lines from 0 to 20000 Hz (2 Hz/line)
Records WAV (uncompressed) format audio files, 24 bits resolution, 48 kHz sampling frequency and constant gain for later analysis
The SC420 sound level meter measures a lot of functions for very long periods of time and also records audio files automatically. The best way to approach the analysis of all these functions together with the qualitative information provided by the audio files is to use the CESVA Lab software application.
CESVA Lab is cost free and gives you a simple way to download all the information from the SC420 by simply removing the microSD card and post-process it. It also allows you configuring the SC420 from the PC.
Moreover, it provides an intuitive and user-friendly interface which allows numerically and graphically display of all the measurement information on the screen in several synchronized panels (spectrum and time history graphs and 3D spectrograms) and listen to the audio files for each sound event.
To navigate through the information, CESVA Lab has an audio and mark browser and a very powerful zoom and pan tool for finding the desired section and then automatically generate a PDF report.
If what you want is to recalculate a section, simply select it, add it to a layer and simply calculate. Different layers, containing several sections, can be calculated simultaneously. Each layer is calculated and saved in a separate file.
Set consisting of: SC420 sound level meter, CB006 Sound level calibrator, TR40 tripod, ML043 transporting briefcase
Set consisting of: SC420 sound level meter, CB006 Sound level calibrator, ML013 transporting briefcase
Set consisting of: SC420 sound level meter, CB006 Sound level calibrator, TR040 tripod, ML063 transporting briefcase
Class 1 acoustic calibrator
Tripod for sound level meter, dosimeter and microphone. Maximum height 1.1 meters.
Tripod for sound level meter, dosimeter and microphone. Maximum height 1.55 meters.
Mains power feeder with USB
Carrying case (48 x 37 x 16 cm) for SC420, acoustic calibrator and Tripod
Carrying case (39 x 32 x 12 cm) for SC420 and acoustic calibrator
Carrying case special weather (51 x 38 x 15 cm) for SC420, acoustic calibrator and Tripod
Outdoor kit
Extension cable 3 m
Extension cable 10 m
Extension cable 30 m
Breakout cable
Tripod support for the preamplifier and microphone
3 m extension rod for microphones. Adaptor for microphone supplied.
Converter for battery 12 V to 5 V
免責(zé)聲明：以上所展示的[混響時(shí)間測(cè)定，聲源切斷法，脈沖響應(yīng)反向積分法 混響時(shí)間測(cè)試系統(tǒng)]信息由會(huì)員[北京世紀(jì)建通技術(shù)開(kāi)發(fā)有限公司]自行提供，內(nèi)容的真實(shí)性、準(zhǔn)確性和合法性由發(fā)布會(huì)員負(fù)責(zé)。
