Fresenius Medical Care 2008k Technical Manual page 25

Section III – Hydraulic Description
Definition of component function (cont.)
x13. Post Conductivity Cell (COND-POS)
Monitors the conductivity after the dialyzer. Used during Online Clearance (OLC)
testing.
x44. Post Temperature thermister (NTC-POST)
Monitors temperature in the post conductivity cell block. Used during Online Clearance
(OLC) testing.
x14. Not Used
x15. Not Used
x16. Concentrate pump with end of stroke sensor (CONC-P)
Delivers acetate or acid concentrate into the water inlet chamber. It will fully discharge
it's volume and refill on every switching of the balance chamber.
x17. Bicarbonate pump with end of stroke sensor (BIC-P)
If enabled (see # 12), this pump delivers bicarbonate into the recirculation chamber. It
will fully discharge its volume and refill (possibly twice depending on the volume needed
for the concentrate selected) on every switching of the balance chamber.
x18. Not Used
x19. Not Used
x20. Deaeration pump (DEGAS-P)
Is calibrated in software, using a pressure gauge on the inlet of the pump.
The pressure is set to - 24 inches of Hg (-610 mmHg).
x21. Flow pump (FLOW-P)
It is controlled by software. The pump speed depends on the flow rate selected.
x22. UF pump (UF-P)
The volume is calibrated to 1ml per stroke. The frequency of strokes is controlled by
software.
x23. Not Used
x24. Dialyzer valve 1 (DIAL-V1)
Valve 24
x25. Dialyzer valve 2 (DIAL-V2)
Valve 25
x26. Bypass valve (BYPAS-V)
Valve 26
III-8 2008K Technician's Manual