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Cal
Slope
Ambient Air
11a 2
43
R
S
W
7.3 6.8 Wash Clean
5
CO
HSC
9. When the measurement completes, the reagent pump starts
and moves the remaining foam wash to the inner sample
port. The reagent pump stops, the waste pump starts, and
the wash moves from the sample port to the waste. This
cleans the inside of the capillary seal and the measurement
module. The wash valve opens and a solid wash segment
moves toward the sample port during this process.
Cal
Slope
Ambient Air
11a 2
43
R
S
W
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5
CO
HSC
7.3 6.8 Wash Clean
10. After the solid wash segment reaches the inner sample
port, the reagent pump stops, the waste pump remains on,
and the sample pump moves the wash segment from the
sample port into the measurement module. An air segment
follows. The wash valve opens and the reagent pump
introduces another solid wash segment into the sample
port. This sequence repeats 11 times to create wash
segments that thoroughly clean the measurement module.
Cal
Slope
Ambient Air
11a 2
43
R
S
W
7.3 6.8 Wash Clean
5
CO
HSC
11. After the wash segments pass through the measurement
module, the Cal gas valve opens and the sample pump
starts to move Cal gas into the measurement module. The
CO-ox module pump moves the remaining 7.3 reagent to
the waste bottle. The waste pump is on to prevent a bubble
from forming at the sample port. The sample door opens
when the sequence completes.