Chapter 4: Test and Calibration Procedures
ABL77 Service Manual
Verify the Fluid Transport System,
Continued
Verify the
fluidics system
(continued)
Step Action
4.
Press the
Pump Cal1
button to flush Cal1 solution through the
measuring chamber.
•
Carefully observe the measuring chamber. The chamber should be
completely filled with fluid. There should be no air bubbles of any
size.
•
If air is observed, flush Cal1 solution a second time. While the
pump wheel is turning, snap repeatedly on the pump tubing to
dislodge any air bubbles in the system.
•
If fluid is being transported, it is also possible to see the fluid
dripping from the tip of the inlet probe down into the waste
receptacle.
5.
Press the
Aspirate
button a second time to remove all Cal1 solution
6.
Press the
Pump Cal2
to flush Cal2 solution through the measuring
chamber.
•
Carefully observe the measuring chamber. The chamber should be
completely filled with fluid. There should be no air bubbles of any
size.
•
If air is observed, flush Cal2 solution a second time. While the
pump wheel is turning, snap repeatedly on the pump tubing to
dislodge any air bubbles in the system.
7.
•
If both Cal1 and Cal2 solution fill the measuring chamber without
air, the fluid transport is functioning properly
•
If one or both Cal solutions are mixed with air or do not flow at all,
continue to investigate the fluidic transport system. This includes
investigating:
•
The cal pack. Ensure it is properly seated on the manifold and
has not been installed on more than one analyzer. Installing a
cal pack on multiple analyzers will cause inaccurate tracking
of cal cycles and cause cal solutions to be completely depleted
without warning.
•
The sensor cassette. Ensure it is properly seated onto the
analyzer and free of blockage
•
The internal fluidic pathways. To check, perform the
following Calibration Lines procedure.
4-4
Rev.
F
