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Introduction to R&P Company and the
TEOM® Series 1400a Continuous PM Monitor
Tim MorphyRupprecht & Patashnick Co., Inc.
25 Corporate CircleAlbany, NY 12203 USA
[email protected] www.rpco.com518-452-0065 ph
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Ambient Air Monitoring Products
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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 (K0) has 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
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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 measurementTapered Element
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R&P Commercial Products Using The TEOM® Mass Sensor
TEOM® Series 1400 Ambient PM Monitor
TEOM® Series 7000 Source PM Monitor
TEOM® Series 1500Pulse Mass Analyzer
TEOM® Series 4100/4200 Combustion Efficiency Monitor
TEOM® Series 1105Diesel Particulate Monitor
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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 µg/m³)
• 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
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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
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Filter ExchangeInsertion Remova
l
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Quality Assurance/Quality Control
Mass calibration check by first principlesMass Calibration Verification Kit (NIST traceable)
Leak check procedureStraight-forward, quick and easy using supplied flow audit adapter
Sensor checksStreamlineTM 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
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Mass Calibration Verification Kit
difference%22.07186Original
7202Implied
536.200
481.269
07992.0
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:
1
20
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filter
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K
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MK
Example
Available in 1-filter (standard) and 5-filter versions
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TEOM Leak Check
Remove sample inlet, andattach flow audit adapter
To TEOM Sensor Unit
To TEOM Control Unit
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Audit / Calibration
Simultaneous NIST-Traceable, Linear Measurement of:
Flow Rate (0.8 to 19 l/min)Ambient TemperatureAmbient PressureFilter Temperature (optional)
Menu-Driven interface, Data Logging (Internal and/or Optional PC-based)Optional External Temperature Probe for Filter Temperature Audits/Calibrations
StreamlineTM Pro MultiCal System
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Goals for PM QuantificationContinuous PM Monitoring in Air Quality Networks
Match time-integrated reference (FRM) techniqueProvide representative short-term data in combination with meteorological data to determine source of PM episodes, AQI reporting, mapping, and for abatement strategy developmentMinimize cross-interference by humidity, thermodynamic conditions, chemical compositionMeasurement methods that are NIST-traceable
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Status of TEOM® Monitor
Major air monitoring networksFrance, United Kingdom, 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% of continuous monitors in US regulatory monitoring network Continuing scientific advancement of PM measurements using TEOM technology
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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
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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 combined volatile and non-volatile components of PM
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Differential TEOM Monitor
Filter-based
True NIST traceable mass measurement
No calibration uncertainty
No measurement uncertainty from volatile loss
No measurement uncertainty from filter artifacts (gas adsorption/desorption, etc.)
Real time
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FDMS Schematic
Derivative of Differential TEOM Monitor
Quantifies combined volatile and non-volatile components of PM mass concentration
Incorporates TEOM mass sensor technology and specially-configured Nafion dryer
Provides determination of volatile mass using self-referencing gas conditioning scheme
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FDMS Field DataClaremont, CA, Test Site, 2-3 Nov 2001
Series 8500 - Filter Dynamics Measurement SystemClaremont, California Test Site
-100
-80
-60
-40
-20
0
20
40
60
80
100
11/02/016:00
11/02/018:00
11/02/0110:00
11/02/0112:00
11/02/0114:00
11/02/0116:00
11/02/0118:00
11/02/0120:00
11/02/0122:00
11/03/010:00
11/03/012:00
11/03/014:00
11/03/016:00
MC Unit #6 - 1 hour avg
Sample MC #6 - 1 hour avg
Zero MC #6 - 1 hour avg
MC = 51.2Sample MC = 46.0Zero MC = -5.3
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Comparison with Reference Method
PM2.5 Series 8500 FDMS SystemPM-2.5 FDMS Results vs. PM-2.5 FRM SamplerBakersfield, Oct 2001 - Feb 2002, Units 2 and 3
y = 1.035x + 3.243
R2 = 0.9766
0
10
20
30
40
50
60
70
80
90
100
110
120
0 10 20 30 40 50 60 70 80 90 100 110 120
PM-2.5 FRM Mass Conc [µg/m≥]
Source: California Air Resources Board
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Applications 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 methodologies
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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
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Forward Looking 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 calibration factors) for universal measurement consistency from site to site
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Company Competencies
Responsive, customer-oriented philosophy
Meeting the needs of clients, technical support staff
ISO 9001 certified, CE/ETL marksConsistency of internal procedures
Innovative design capabilitiesScientists, mechanical & electrical engineers, designers
In touch with scientific directionsScientific meetings, contact with opinion leaders
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Technical Support
Distributor/representative networkR&P Regional Company Representatives
Customer area of WWW sitehttp://www.rpco.com/customer (password protected)
Technical documentationOperating & service manuals, quick start guides, tech notes
R&P service department ([email protected])
Product specialists, on-site and in-house training
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Company OverviewOver 100 employees, including strong in-house design, engineering capabilities, technical application supportFirst in industry with ISO 9001 certificationManufacture both manual samplers (such as Partisol) and continuous on-line monitors for ambient, stack, diesel and research applicationsCommitted to superior product performance by design, and industry-leading service and support
*
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Company Milestones
Contract with NASA for development of space-based mass measurement system
Introduction of TEOM® monitor for ambient air quality measurements in late 1980’sPartisol manual samplers used in USEPA national sampling network for PM2.5
Introduction of advanced PM speciation sampling and continuous monitoring systems
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R&P Website (www.rpco.com)
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R&P Website (www.rpco.com)
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R&P Website (www.rpco.com)
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R&P Website (www.rpco.com)
R&P Contact InformationMichael B. Meyer – Director, Marketing & Technical Services / Senior Scientist
Tim Morphy – Product Manager (Startup Training Coordinator)- [email protected]
Debbie Bowe – Service Department Manager- [email protected] ([email protected])
Cynthia Liu – Product Manager (Chemical Speciation Samplers)- [email protected]
Ed Burgher – Product Manager (Stationary Source)- [email protected]
Bob Anderson – Product Manager (Mobile Source)- [email protected]
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