Bayer HealthCare Rapidlab 800 - Manual (Page 41)

1Ć19 Learning About the System
Reagent Delivery
The reagent delivery components include the reagents, the gases, and the solenoid
valves that direct the movement of reagents, ambient air, and gases through the
system. The opening and closing of the 11 solenoid valves allow the fluids and
gases to pass through the system. The solenoid valves are located in the reagent
manifold. The illustration below shows the reagent delivery components for 860,
864, and 865 systems.
Gas Tubing
Reagent Manifold
Gas Fittings
Reagents
Pumps
The system pumps are the reagent pump, the sample pump, the waste pump, and
the CO-ox pump if the CO-ox module is attached. Each pump consists of a platen,
tubing, a roller cage, and a motor located behind the pump. The tubing is located
between the platens and the rollers on the roller cage. The pressure applied by the
roller cage against the platen creates a peristaltic action to move the fluid in the
tubing.
Waste Pump
Sample
Pump
Roller Cage
Platen
Reagent
Pump
Pump Tubing
Platen
Roller Cage
Tubing Cuff
Pump Tubing
Roller Cage
Pump Tubing