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User's manual – Ver. 1.53 July 2015 12/75
• 21-cm color graphics touch-screen for data display and local user interface;
• USB ports for insertion of a memory stick for local data download;
• USB ports for connection of a keyboard, if necessary for initial setup of parameters,
such as station identification;
• RS-232 COM ports for data transmission from auxiliary instruments or to the digital
datalogger;
• Ethernet port for full network access and control, including
i. Remote data acquisition, either batch or streaming
ii. Remote retrieval of instrument status and state-of-health
iii. Remote control of instrument operating parameters
Modular Construction
The Aethalometer Model AE33 is constructed with a modular design, so that sub-units may be
easily serviced. The only item requiring attention in routine use is cleaning of the optical
insert to remove accumulated dust or other contamination which may be brought in with the
sample air stream. The optical chamber is attached with a bayonet fitting for quick removal;
easy cleaning; and reliable re-assembly. The entire instrument is hermetically sealed to
reduce the entry of dust.
References
Arnott, W. et al. (2005), Towards Aerosol Light-Absorption Measurements with a 7-Wavelength Aethalometer:
Evaluation with a Photoacoustic Instrument and 3-Wavelength Nephelometer Aerosol Sci. Technol., 39, 17-29.
Gundel, L.A., et al. (1984), The Relationship Between Optical Attenuation and Black Carbon concentration for
Ambient and Source Particles, Sci. Total Environment, 36, 197-202.
Hyvärinen A.-P. et al. (2013), Correction for a measurement artifact of the Multi-Angle Absorption Photometer
(MAAP) at high black carbon mass concentration levels, Atmos. Meas. Tech., 6, 81-90.
Kanaya et al. (2008), Mass concentrations of black carbon measured by four instruments in the middle of Central
East China in June 2006, Atmos. Chem. Phys., 8, 7637–7649.
Virkkula A. et al. (2007), A Simple Procedure for Correcting Loading Effects of Aethalometer Data, J. Air & Waste
Manage. Assoc., 57, 1214–1222.
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