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800961-C
Nov.
2000
区 JALLINCKRODT
Fault # 019
Flow rate error
Occurs when: The actual flow rate delivered by the syringe plunger
is monitored by the CPU by using feedback from the motor en-
coder. When this flow rate is approximately 20% higher than the
programmed flow rate, this Fault message will occur.
Corrective action: Replace chip U13 on the Mother board. If the
problem persists, replace the Motor encoder.
Fault # 020
Motor moving wrong direction
Occurs when:
Motor direction output from U14 pin 6 on the Mother
board is incorrect. Fill syringe movement = high signal; Expel sy-
ringe movement = low signal.
Corrective action: Check to ensure J5 pins 1 and 2 on the
Powerhead board are connected properly. Replace chips U14 and
U13 on the Mother board.
Fault # 021
Syringe size sensing error
Occurs when: Face plate magnets are not sensed for a valid
syringe size.
Corrective action: Check magnets.
Replace sensor board in
Powerhead.
Fault # 022
Heater thermistor tracking error
Occurs when:
Heater Blanket thermistors are not at the approxi-
mate same level.
Corrective action: Replace the Heater Blanket. If the problem
persists, replace U1 on the Powerhead board.
Fault # 023
Overheating error
Occurs when: \f the Heater Blanket temperature is greater than 42
°C, this Fault message will be displayed.
Corrective action: Replace the Heater Blanket. If the problem
persists, replace Ui on the Powerhead board.
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