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Describing the PCS2 Device Components
P/N 85266-30, Manual revision: A
Donor flow lights
These color-coded lights, located on both sides of the PCS2 top deck, indicate
donor blood-flow status during the DRAW and RETURN modes. They are
contained in a rectangular panel on the PCS2 top deck.
Figure 2-7, PCS2 donor flow lights
DRAW mode
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The GREEN light indicates that donor blood flow is adequate for the
blood pump to maintain an adequate speed.
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The YELLOW light indicates that donor flow is decreasing to a rate of less
than 2/3 of what is required to maintain an adequate speed.
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The RED light indicates that blood is not flowing adequately or not flow-
ing at all from the donor.
If the RED flow light is lit, the Blood pump will automatically stop. The centrifuge
will continue to spin to ensure continued separation of the collected blood
components. When donor blood flow is restored, the pump will automatically
restart.
RETURN mode
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The YELLOW light indicates that the non-selected blood components
are being returned to the donor. No other donor light will be visible at
this time.
Note: If any of the DRAW mode lights are lit, the donor can promote blood flow
by clenching and relaxing the hand below the needle site. When the RETURN
yellow light is lit, the donor should NOT do this, because the blood components
in the bowl are being returned. The operator should instruct the donor to observe
the differences in the lights and act accordingly.
DRAW mode
Normal flow / Green
Low flow / Yellow
No flow / Red
RETURN mode
Return flow / Yellow
