MAGEE Scientific AE33 User Manual page 49

Aethalometer
Model AE33
Data field description:
- Date(yyyy/MM/dd): date.
- Time(hh:mm:ss): time.
- Timebase: timebase – units in seconds.
- Ref1, Sen1Ch1, Sen2Ch1...: are the raw signal Reference (Ref), Sense 1 ( Sen1) and Sense 2 (
Sen2) values form which the BC concentrations are calculated for channel 1 (Ch1), that is
wavelength 370 nm. BC11 is the uncompensated BC calculated from the spot 1 for channel 1.
BC1 is the final results the BC calculated form measurements for channel 1 (370 nm).
- Flow1; Flow2; FlowC: Measured flow in ml/min. Flow 1 is flow through the spot 1, Flow_C is
common (total flow) through the optical chamber, Flow_2 is the difference between these two.
- Pressure (Pa); Temperature (°C): These are the pressure and temperature which the
instrument uses to report flow. By choosing to report mass flow, (101325 Pa, 21.11 C) are
used to convert the measured mass flow to reported volumetric flow at these conditions
(these are values used by the flow meter in the AE33). These values can be substituted for any
other (pressure, Temp) values, should you want the flow to be reported at 0 C, or 25 C for
example. Optionally, you can chose volumetric flow at ambient conditions to be reported. To
do that you need an accessory for the (pressure, Temp) measurement. We offer this
separately. This external device is connected to the COM ports, please see below.
- BB (%): the percentage of BC created by biomass burning determined by Sandradewi model.
- ContTemp; SupplyTemp: control and power supply board temperatures
- Status; ContStatus; DetectStatus; LedStatus; ValveStatus; LedTemp: status codes for the
instrument, reported in the , please see manual, chapter 5.2. and the subcomponents:
controller, detector LED board; valve status (see section 1.5 Flow manifold); LED board
temperature
These are not documented yet, but we'll add them in one of the upcoming versions of the
manual.
- BC11; BC12; BC1; BC21; BC22; BC2; BC31; BC32; BC3; BC41; BC42; BC4; BC51; BC52; BC5;
BC61; BC62; BC6; BC71; BC72; BC7: BC11 is the uncompensated BC calculated from the spot 1
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User's manual – Ver. 1.53 July 2015 49/75