5. Electronics
The SBC filters out the Rinse request from the I/O
controller when the dialyzer line interlocks are not in the
proper state. The only way the SBC can receive a Rinse
request without the proper interlock condition being met is
if a failure exists in the system logic. If this situation does
occur, then the I/O Controller activates the system
shutdown line.
5.4.3 Slot # 4: Hemavision Board (optional)
The Hemavision Board is one of three elements that make up the
optional Hemavision Monitor System, and it is located in the Card
Cage, Slot # 4, see Figure 5-15. The other two elements are the
Hemavision Sensor Clip (see Section 2) that connects directly into
this board and the Sensor Clip Test Socket. This system provides a
non-invasive method for monitoring the patient’s hematocrit,
blood volume, and oxygen saturation during the dialysis treatment.
Hemavision
Monitor
Slot #4
Figure 5-15. Hemavision Board (optional)
Refer to Section 21, Hemavision Monitor, for more information.
5.4.4 Slot # 5: Single (and optional Double) Blood Pump
Controller
This board controls the operation of the Blood Pump Power board.
For more information, refer to Figure 5-1 and Section 5-5, Blood
Pump Power Board.
157-1278-912 Rev A 5-23
November 2003
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