Terumo BCT Trima Accel, Service Manual

Page: 143 / 340

• Test the valve position sensing (both control and safety computers) in all three positions for each
valve.
• Test if the lower-level sensor registers air continuously at both the control and safety computers.
• Test if the AC level sensor registers air continuously.
• Test the safety system centrifuge rpm sensor (Halls) for commanded and zero speed.
• Test if the control computer can stop the centrifuge.
• Evacuate air from the collection bags.
Successful completion of Startup Tests state results in the following conditions and actions.
Exit Condition
Trima Accel System
Condition
Trima Accel System Action
All startup tests have passed. Pause. The Trima Accel system advances to the Disposable
Tests state.
Startup Tests Substates
The Startup Tests state performs the Trima Accel system's mandatory startup tests.
CPUID Test Substate
First, this substate tests the available memory on the control and safety computers. If the memory is
insufficient, an alarm is generated. Next, this substate checks that the control and safety CPU type
matches one of those listed in the hw.dat file. If the CPU type does not match, an alarm is generated. If a
valid power fail recovery condition or a new collection procedure condition is detected, the Trima Accel
system advances to the Power Test substate.
Calib Verification (Calibration Check) Substate
This substate checks that the cal.dat file values for access pressure, centrifuge pressure, and RBC detector
are different values than the defaults. If any one (or more) are the same as the default values, then a
“cal.dat xxxx not calibrated” alarm is generated.
Power Test Substate
Prior to beginning this test, the Trima Accel system verifies that the disposable tubing cassette is in the
unloaded position. If not, the Trima Accel system advances directly to the Donor Disconnect system
state. If the cassette is in the unloaded position, the safety computer checks for the presence and limits of
the 24-volt and 64-volt DC power supplies. The 24-volt and 64-volt DC supplies are then disabled and
re-enabled to confirm safety computer's control over them. The second part of the power tests turns the
24-volt and 64-volt power supplies on, commands the pumps to zero, and ensures that they are not
moving. At the end of this substate, the 24-volt switch remains ON and the 64-volt switch is turned
OFF. If any test fails, an alarm is generated, and the Trima Accel system resumes at the beginning of
Startup Tests. If all conditions are met, the Trima Accel system advances to the Valves Test substate.
Software Description
3-10 Trima Accel
®
Automated Blood Collection System • Service Manual