MAGEE SCIENTIFIC AETHALOMETER® MODEL AE43
MAGEE SCIENTIFIC AETHALOMETER® MODEL AE43 - PORTABLE BLACK CARBON MONITOR
The Magee Scientific Aethalometer® is the instrument most used in the world for the real-time measurement of aerosol Black Carbon (BC). The Model AE43 is the brand new Portable Black Carbon monitor. This product incorporates all of the well-proven and rugged design principles of Magee Scientific aerosol monitoring instruments. Applications, such as vertical profiling, emission testing, health effects research, mobile mapping, and field measurements at “off-grid” locations are all made easier by the features of the AE43.
LIGHT-WEIGHT DESIGN for PORTABILITY (almost half the size and weight of the rack mount Black Carbon monitor)
OPTIONAL EXTERNAL POWER SUPPLY for “OFF-GRID” monitoring applications
ADVANCED GRAPHICAL USER INTERFACE for REAL-TIME DATA CHARTING
DUALSPOTTM – PATENTED TECHNOLOGY
REAL-TIME SOURCE APPORTIONMENT
RUGGED and RELIABLE
The Aethalometer is a Black Carbon monitor that collects and analyzes aerosol particles continuously. The aerosol-laden air stream is drawn through a spot on a filter tape at a measured flow rate. Simultaneously, the tape is illuminated by light: and sensitive detectors measure the intensities of light transmitted through an un-exposed portion of the tape acting as a reference; versus the collecting spot. As optically absorbing material accumulates on the spot, the intensity of light transmitted through it gradually decreases. The decrease in light intensity from one measurement to the next is interpreted as an increase in the amount of collected material. This increased amount is divided by the known air-flow volume to calculate the concentration.
The new Black Carbon monitor collects a sample from the same input airstream on two sample spots with different accumulation rates and analyzes them simultaneously. The two results are combined mathematically to eliminate the “Filter Loading Effect” nonlinearity and provide an accurate measurement of the aerosol concentration.
Additionally, the analysis is made at 7 optical wavelengths spanning the spectrum from 370 nm to 950 nm. Increases in optical absorption at shorter wavelengths may be interpreted in terms of the presence of so-called “Brown” carbonaceous material, usually an indicator of emissions from biomass combustion.
The Magee Scientific Aethalometer® Model AE43 – a new Black Carbon Monitor combines the most recent development, scientific and technical results to extend application portfolio to portable BC measurements, for instance to vertical profiling, emission testings, health effect research, and the field pollution mapping…
LIGHT – WEIGHT DESIGN for PORTABLE APPLICATIONS
Magee Scientific Aethalometer® model AE43 incorporates a light-weight design perfectly suitable for portable Black Carbon monitor.
EXTERNAL POWER SUPPLY for REMOTE LOCATION monitoring
External 12 V power supply (optional accessory) for remote location monitoring: operation up to 15 hours. The AE43 can also be operated by an AC power adapter (100-240 VAC auto-switching) or an external DC source (e.g. vehicle power, solar PV system, etc).
GRAPHICAL USER INTERFACE for ADVANCED REAL-TIME DATA CHARTING
10.1” color touch-screen with basic data display and control, advanced screens for detailed reporting and parameter setup. It incorporates graphical charts of relevant data visualization (BC @ all wavelengths, BB%) for instant monitoring and reporting. When the Wind sensor (PN M5520) is connected, advanced charting of BC in terms of pollution rose are available on the display of AE43.
THE DUALSPOT™ MEASUREMENT METHOD
The Magee Scientific Aethalometer® Model AE43 incorporates the patented DualSpot™ measurement method. This completely solves the loading-dependent nonlinearity which affects the data from any filter-based optical analyzer. The method explicitly does not require any knowledge or assumption about the existence, origin or magnitude of any optical nonlinearity: in fact, the calculation yields the “Loading Compensation Parameter” as an instrumental data output, which may offer insights into the origins and optical properties of the aerosol.
7-WAVELENGTH OPERATION: UV-IR, 1HZ DATA
The analysis is performed at 7 optical wavelengths spanning the range from the near-infrared (950 nm) to the near-ultraviolet (370 nm). The sequencing of illumination and analysis is performed on a 1-Hz timebase. This yields the complete spectrum of aerosol optical absorption with one data line every second.
REAL-TIME SOURCE APPORTIONMENT
An Ångström Exponent model is used in real time to calculate the fraction of BC that may be attributed to biomass combustion.
RUGGED, RELIABLE, AUTOMATIC
The Magee Scientific Aethalometer® has been developed over almost 40 years to offer rugged, reliable, and automatic operation. The AE43 recovers automatically from power interruptions, when connected to AC power supply. Additionally it can operate up to 15 h at remote location when connected to external 12V DC external power supply.