Cole-Parmer offers USB Sound Level Data Logger. Most sound meters incorporate a processing network that assigns relative importance to low-, middle-, and high-frequency signals. By comparing differently weighted measurements, allows isolating the source of problem sounds. "A" Weighting attenuates the lower frequencies to approximate the response of the human ear, which is most sensitive to frequencies between 3000 and 4000 Hz. "B" Weighting gives decibel readings of combined high- and middle-frequency signals. Use in conjunction with A weighting to isolate sounds that are causing a problem. "C" Weighting reads all frequencies the same but gives a better response to higher frequencies than A or B weighting. Use to pinpoint problems when A or B weighted scale readings are very high.
With more than 50 yrs. Of experience, Cole-Parmer is a global leader in supplying fluid handling, life science, and general laboratory products, instrumentation, and equipment to the Biotech, Chemical, Academics, Environmental, Food, and Print Industries. Offering a wide selection of products and instrumentation, Cole-Parmer, an ISO 9001:2008 certified company, works with R and D, pilot plant and production, specializing in providing scale-up assistance. With a mix of proprietary products and strategic partnering with leading manufacturers, Cole-Parmer’s business is highly diversified across a spectrum of products, consumables, services and solutions.
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