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1、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 518-452-0065 ph,Ambient Air Monitoring Products,TEOM Mass Transducer (1),Tapered element oscillates at its natural frequency (simple harm
2、onic 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 (K0) has
3、insignificant response to temperature. (For example, the change in K0 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 microb
4、alance 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- moist
5、ure 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 E
6、fficiency Monitor,TEOM Series 1105 Diesel Particulate Monitor,TEOM Series 1400a Ambient Continuous 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 mon
7、itoring 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 Un
8、it,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 Assu
9、rance/ 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 StreamlineTM Pro MultiCal for field temperature, pressure, and flow audits and ca
10、librations (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 adapt
11、er,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
12、 Temperature Probe for Filter Temperature Audits/Calibrations,StreamlineTM 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 t
13、o 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 Ki
14、ngdom, Canada, United States (PM10 and PM2.5), 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% o
15、f 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 Particu
16、late 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 pro
17、vide an exacting measurement of the ambient PM mass in the atmosphere Filter Dynamics Measurement System (Series 8500 FDMS) to measure the combined volatile and non-volatile components of PM,Differential TEOM Monitor,Filter-based True NIST traceable mass measurement No calibration uncertainty No mea
18、surement uncertainty from volatile loss No measurement uncertainty from filter artifacts (gas adsorption/desorption, etc.) Real time,FDMS Schematic,Derivative of Differential TEOM Monitor Quantifies combined volatile and non-volatile components of PM mass concentration Incorporates TEOM mass sensor
19、technology and specially-configured Nafion dryer Provides determination of volatile mass using self-referencing gas conditioning scheme,FDMS Field Data Claremont, CA, Test Site, 2-3 Nov 2001,Comparison with Reference Method PM2.5 Series 8500 FDMS System,Source: California Air Resources Board,Applica
20、tions of Continuous PM Monitors,Provide continuous daily integrated “FRM”-like measurements Provide representative one-hour PM measurements for public reporting (air quality index, mapping, forecasting) and health effects studies Reduce labor and other costs associated with manual sampling methodolo
21、gies,Where Does This Lead?,Challenge: identify continuous PM monitoring method that provides “FRM”-like integrated results that can be used for regulatory purposes while providing meaningful, high-precision short-term (i.e., hourly) data Requires blending of regulatory and scientific needs,Forward L
22、ooking Statement,R&P is committed to solving PM measurement issues to enable continuous monitoring in areas containing particulate nitrate and volatile organic compounds Instrumentation is based on first principles to provide calibration based on scientific considerations (not empirically-derived ca
23、libration factors) for universal measurement consistency from site to site,Company Competencies,Responsive, customer-oriented philosophy Meeting the needs of clients, technical support staff ISO 9001 certified, CE/ETL marks Consistency of internal procedures Innovative design capabilities Scientists
24、, mechanical & electrical engineers, designers In touch with scientific directions Scientific meetings, contact with opinion leaders,Technical Support,Distributor/representative network R&P Regional Company Representatives Customer area of WWW site http:/ (password protected) Technical documentation
25、 Operating & service manuals, quick start guides, tech notes R&P service department () Product specialists, on-site and in-house training,Company Overview,Over 100 employees, including strong in-house design, engineering capabilities, technical application support First in industry with ISO 9001 cer
26、tification Manufacture both manual samplers (such as Partisol) and continuous on-line monitors for ambient, stack, diesel and research applications Committed to superior product performance by design, and industry-leading service and support,Company Milestones,Contract with NASA for development of s
27、pace-based mass measurement system Introduction of TEOM monitor for ambient air quality measurements in late 1980s Partisol manual samplers used in USEPA national sampling network for PM2.5 Introduction of advanced PM speciation sampling and continuous monitoring systems,R&P Website (),R&P Website (
28、),R&P Website (),R&P Website (),R&P Contact Information,Michael B. Meyer Director, Marketing & Technical Services / Senior Scientist - Tim Morphy Product Manager (Startup Training Coordinator) - Debbie Bowe Service Department Manager - () Cynthia Liu Product Manager (Chemical Speciation Samplers) - Ed Burgher Product Manager (Stationary Source) - Bob Anderson Product Manager (Mobile Source) - ,