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Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,Introduction to R&P Company and the TEOM,Series 1400a Continuous PM Monitor,Tim Morphy,Rupprecht&Patashnick Co.,Inc.,25 Corporate Circle,Albany,NY 12203 USA,tmorphy, ,518-452-0065 ph,Ambient Air Monitoring Products,TEOM,Mass Transducer(1),Tapered element oscillates at its natural frequency(simple harmonic oscillator).,Particulate matter collects on filter continuously.,Frequency decreases with accumulation of mass.,Direct,relationship between mass and frequency change:,Tapered element physical characteristics(material,configuration,housing)chosen so mass sensor calibration constant(K,0,)has insignificant response to temperature.(For example,the change in K,0,for a TEOM monitor operating at 30,C and 50,C is less than 1%.),Tapered Element,TEOM,Mass Transducer(2),Equation describing tapered element is derived from physical law.,Not,an approximation.Approach similar to laboratory microbalance in that mass detected by sensor is result of measurement of change in fundamental physical parameter(e.g.,frequency,strain,displacement),Tapered element typically kept in constant elevated temperature(user-selectable)environment to,Minimize water interference from both sample air-moisture content and particle-associated water,Provide high stability for real-time measurement,Tapered Element,R&P Commercial Products Using The TEOM,Mass Sensor,TEOM,Series 1400 Ambient PM Monitor,TEOM,Series 7000,Source PM Monitor,TEOM,Series 1500,Pulse Mass Analyzer,TEOM,Series 4100/4200 Combustion Efficiency Monitor,TEOM,Series 1105,Diesel Particulate Monitor,TEOM,Series 1400a AmbientContinuous Particulate Monitor,Direct,continuous technique for,true,filter-based mass measurement,Superior time and mass resolution,and,precision,(hourly precision:1.5 g/m),Accepted standard for particulate monitoring worldwide,(regulatory,research,remediation,special studies),USEPA Equivalent Method EQPM1090-079 for PM10,CAC for PM2.5,Australian Standard,JIS(Japan),Taiwan,German TUV,USEPA Fine Methods Study,ETV,Over 4000 instruments deployed worldwide in major air quality networks,TEOM,Sensor Unit,Three independent temperature control zones,Amplifier board maintains tapered element oscillation,TEOM filter is Teflon,-coated glass,12 mm,10 m cable set to control unit,Pivoting mass transducer allows easy filter exchange,Sensor Unit with Door Open,Filter Exchange,Insertion,Removal,Quality Assurance/Quality Control,Mass calibration check by first principles,Mass Calibration Verification Kit(,NIST traceable,),Leak check procedure,Straight-forward,quick and easy using supplied flow audit adapter,Sensor checks,Streamline,TM,Pro,MultiCal,for field temperature,pressure,and flow audits and calibrations(,NIST traceable,),TEOM monitor is only filter-based continuous PM monitor that provides NIST-traceable mass,and,flow measurement methods,Mass Calibration Verification Kit,Available in 1-filter(standard)and 5-filter versions,TEOM Leak Check,Remove sample inlet,and,attach flow audit adapter,To TEOM Sensor Unit,To TEOM Control Unit,Audit/Calibration,Simultaneous,NIST-Traceable,Linear Measurement of:,Flow Rate(0.8 to 19 l/min),Ambient Temperature,Ambient Pressure,Filter Temperature(optional),Menu-Driven interface,Data Logging(Internal and/or Optional PC-based),Optional External Temperature Probe for Filter Temperature Audits/Calibrations,Streamline,TM,Pro,MultiCal,System,Goals for PM Quantification,Continuous PM Monitoring in Air Quality Networks,Match time-integrated reference(FRM)technique,Provide representative short-term data in combination with meteorological data to determine source of PM episodes,AQI reporting,mapping,and for abatement strategy development,Minimize cross-interference by humidity,thermodynamic conditions,chemical composition,Measurement methods that are NIST-traceable,Status of TEOM,Monitor,Major air monitoring networks,France,United Kingdom,Canada,United States(PM,10,and PM,2.5,),Mainland China,Hong Kong,Australia,Santiago,Mexico City,Madrid,Stockholm,Brussels,Vancouver,Worldwide market share approximately 40-50%of all PM continuous monitors.Data availability often greater than 95%(UK AURN:97+%).,Approximately 75%of continuous monitors in US regulatory monitoring network,Continuing scientific advancement of PM measurements using TEOM technology,History of Continuous PM Monitoring at R&P,TEOM Series 1200 Ambient Particulate Monitor,TEOM Series 1400a Ambient Particulate Monitor,TEOM Series 1400a Ambient Particulate Monitor operated at 30 C for wintertime measurements of lighter volatiles,History(cont.),TEOM Series 1400a Ambient Particulate Monitor with Sample Equilibration System(SES)operated at 30 C year-around(even at higher ambient temperature and relative humidity),Differential TEOM Monitor to provide an exacting measurement of the ambient PM mass in the atmosphere,Filter Dynamics Measurement System(Series 8500 FDMS)to measure the combin
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