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Cal
Slope
Ambient Air
11a 2
43
R
S
W
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7.3 6.8 Wash Clean Cal G/L
5
CO
HSC
3. The reagent pump starts, wash bypass, and vent valves
open, and the remaining solid wash segment moves to the
inner sample port. The wash bypass valve is open while
the reagent pump is on to prevent leakage from the foam
wash valve. After the solid wash segment reaches the
inner sample port, the reagent pump stops and the sample
pump moves the wash from the sample port into the
measurement module. 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. The waste
pump is on.
Cal
Slope
Ambient Air
11a 2
43
R
S
W
7.3 6.8 Wash Clean Cal G/L
5
CO
HSC
4. After the wash segments pass through the measurement
module, the Cal gas valve opens, the sample pump starts,
and Cal gas moves to the measurement module. The
CO-ox pump moves the remaining wash segments 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.