MAGEE Scientific Aethalometer AE33 User Manual page 137

Aethalometer
Model AE33
The response of the optical detectors of the Aethalometer Model AE33 may be verified by use
of a standard kit of Neutral Density optical filters. These are glass elements with a range of
known and stable optical absorptions, from light to dark, which are traceable from
manufacturing records back to primary standards. When these are inserted into the AE33
Aethalometer, its photodetectors will give a certain output signal.
reproducibility of the relationship between optical signal and ND Filter density from one
validation test to another; and the comparison with the original factory values; is a measure of
the consistency of performance of the instrument's optics.
User and Communications Interfaces
The Aethalometer Model AE33 incorporates the following user, data and communications
features:
• 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
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User's manual – Ver. 1.55 July 2017
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