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產(chǎn)品簡(jiǎn)介
CASS - A Revolutionary OC/EC analyzer
產(chǎn)品價(jià)格：￥1.00元/個(gè)
上架日期：2025-08-12
發(fā)貨地：廣東 深圳市
供應(yīng)數(shù)量：不限
最少起訂：1個(gè)
瀏覽量：507
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    產(chǎn)品等級(jí)氣體檢測(cè)器加工定制是
    產(chǎn)地深圳產(chǎn)品認(rèn)證CE
    生產(chǎn)廠家美國(guó)Magee黑碳儀產(chǎn)品等級(jí)一級(jí)品
    產(chǎn)品認(rèn)證CE

    PRODUCT INFO

    The Magee Scientific Carbonaceous Aerosol Speciation System, model CASS, is a combined unit of a Total Carbon Analyzer, model TCA08 and an Aethalometer, model AE33 providing a revolutionary scientific instrument that measures the Total Carbon Content(“TC”), the Elemental Carbon content(EC), the Organic Carbon content(OC) and the Black Carbon content (BC) of suspended aerosol particles in near-Real Time.

     

    PRODUCT ADVANTAGES AND BENEFITS

    • DUALSPOTTM TECHNOLOGY for yielding Black Carbon result independent of the so called “filter loading effects”.
    • CONTINUOUS ANALYSIS OF TOTAL CARBON content by using 2 identical flow channels with 2 independent stainless steel combustion chambers.
    • SOURCE APPORTIONMENT to discriminate Black Carbon from fossil fuel vs Black Carbon from biomass burning with built-in analysis by a 2-component model.
    • CALIBRATION/VALIDATION against NIST STANDARD reference material to validate the data by a Neutral Density Optical Filter Kit. This procedure can be perbed at the instrument site to maximize up-time and minimizes expenses.
    • Using AMBIENT AIR in the combustion chamber as a carrier gas to create CO2 pulse and measures the level of TC in ambient air, therefore NO special GAS and NO special quartz GLASS is required.
    • RUGGED and ALL STEEL CONSTRUCTION to fit the requirements of standardized 19” rack type mounting.
    • EASY INSTALLATION and MAINTENANCE and VERY LONG AUTONOMOUS OPERATION

    ONLINE TC, BC, OC/EC DETERMINATION

    The Magee Scientific Carbonaceous Aerosol Speciation System CASS provides a real-time data for BC, closely related to EC, and automatically combines them with TC data from TCA to provide a complete characterization of the carbonaceous component of the aerosol in near-real-time: TC, BC, (or ′EC′) and OC. The characterization of all carbonaceous aerosol components is perbed by including a simple mathematical relation: TC = BC (EC) + OC.

     

    REAL-TIME SOURCE APPORTIONMENT (%BB)

    The Magee Scientific Carbonaceous Aerosol Speciation System CASS instrument discriminates a Black Carbon fossil fuel from a Black Carbon biomass burning (%BB) in real-time through a sophisticated built-in SW analysis based on a two-component Aethalometer model.

     

    SEVEN WAVELENGTH OPERATION: UV-IR, 1HZ DATA

    The BC (′EC′) optical analysis is perbed at 7 wavelengths from the near-infrared (950 nm) to the near-ultraviolet (370 nm) yielding optical absorption characteristics of collected aerosols on a teflon-coated glass fiber filter tape. Tape advances automatically when user selectable loading threshold is reached, typically once every few hours depending on aerosol concentration and air flow-rate.

     

    RUGGED INSTRUMENT FOR LONGER AUTHONOMOUS OPERATION

     

    The Magee Scientific Carbonaceous Aerosol Speciation System CASS is constructed in a rugged and compact design to fit AE33 and TCA08 into 19” rack type CASS housing package suitable for field-work, laboratory and routine Air Quality monitoring applications with limited space. CASS can operate for longer period of time (from weeks to months) without operator′s attention, only a roll of filter tape on AE33 and quartz fiber filter or denuder on TCA08 have to be replaced from time to tim

     

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