Arena Service Manual
5.5 BLOOD PUMP POWER BOARD
This board is controlled directly by the Blood Pump Controller
board. It is located right behind and above the blood pumps. The
BP Power board in turn controls the operation of the analog
devices related to the blood pump system (see Figure 5-1):
• Blood Pumps
• Heparin Pump
• Level Adjust Motors, valves and switches
• Venous and Arterial Membrane switches
• Optional Arterial Line Clamp
• Pressure Transducers
• Speaker power
• Fan
• Sonalert
5.6 UF-PROPORTIONING POWER BOARD
This board is controlled directly by the UF- Proportioning
Controller board which incorporates buffering for the gear pumps.
The UF- Proportioning Power board in turn controls the operation
of some of the analog devices related mostly to the UF-
Proportioning system and fluid path (see Figure 5-1):
• Supply Pump
• Dialysate Pressure Pump
• Deaeration Pressure Pump
• End-of-Stroke Sensors
• Heater Control
• UF Flow meter valves
• Flow Equalizer Valves
• A & B Proportioning Pumps
• Dialysate Pressure Relief Valve
• Conductivity-Temperature measurement
• OLHDF Purge Valve # 2 (optional)
• Citric Acid Valve
5-30 157-1278-912 Rev A
November 2003
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