MAGEE Scientific AE33 - Flow Manifold

Aethalometer
Model AE33
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User's manual – Ver. 1.53 July 2015 22/75
1.5 Flow manifold
Flow manifold in AE33 allows for different operation modes (see table below). During
measurement inlet air passes Filter spots 1 & 2 with different flow rate, defined by the orifice
2. Air flow through spot1 (S1) is measured by flowmeter 1, flow through a second spot is
calculated as a difference between flow through flowmeters C and 1.
Valve status contains a series of binary values: Valve 4-moving (1=YES/0=NO), Valve 4
(1=ON/0=OFF), Valve 3 (1=ON/0=OFF), Valve 2 (1=ON/0=OFF), Valve 1 (1=ON/0=OFF).
Mode
Valve1
Valve2
Valve3
Valve4
Valve status
Bypass
1
1
0
1
01011
Warm-up/clean air
0
0
1
1
01100
Measurement
0
0
0
0
00000
Flowmeter calibration
0
1
0
0
00010