Terumo Advanced Perfusion System 1 Operator's Manual page 215

Centrifugal Control Unit
The following table includes the messages that can appear on the centrifugal control
unit display and corresponding operator responses.
Response
Priority Condition
Alarm Air detected for
connected air bubble
detector.
Low level detected
for connected alarm
level sensor.
Alarm over pressure
detected for connect-
ed pressure sensor.
Connected flow meter
minimum flow.
Connected flow meter
backflow detected.
Alert Connected pump has
stopped.
Connected pump has
started.
Connected centrifugal
pump detects min flow.
Low level detected for
connected alert level
sensor.
Over pressure alert
detected for connected
pressure sensor.
Motor speed < demand
speed for more than 2
seconds.
Pump cannot maintain
servo set point.
Loss of servo source
data.
CCU Display Message
<Response>: AIR DETECTED
<Response>: LOW LEVEL
<Response>: OVER PRESSURE Clamp lines, when necessary.
MINIMUM FLOW
<Response>: BACKFLOW
<Response>: PUMP STOP
<Response>: PUMP START
<Response>: MINIMUM FLOW
<Response>: LOW LEVEL
<Response>: OVER PRESSURE Correct over pressure condition.
UNDERSPEED
MANUAL: MONITOR FLOW
MANUAL: MONITOR FLOW
6-16
Operator Response
Clamp lines, when necessary.
Correct air condition, reset alarm.
Restart pump if stopped.
Clamp lines, when necessary.
Correct low level condition,
restart pump if stopped.
Correct over pressure condition,
restart pump if stopped.
Correct minimum flow condition.
Message will clear when the
condition is corrected.
Clamp the lines. Correct backflow
condition. Check for air; clear if
present. Restart the pump if
stopped.
Restart connected pump, restart
pump if stopped.
Restart pump if stopped.
Restart pump if stopped.
Correct low level condition.
Clamp the lines. Stop and start the
pump. If the message reappears,
contact Terumo Cardiovascular
Service. Reassign pump, use
standby equipment, or manual
drive unit.
Check that the servo source
pressure or flow value is stable.
Try to initiate servo operation via
the CCM. If message appears
again, discontinue use of servo
operation.
Check operation and placement of
servo source. If source
is operating properly, try to initiate
servo operation via the CCM. If
message appears again,
discontinue use of servo
operation.