7. Preventive Maintenance/System Operational Check-Out
7-89
2.
System Operational Check-Out
a.
Install Disposable set. Remove the patient line from the luer connector.
Insert the thermocouple approximately 2” into the connector previously
connected to the patient line.
b.
Turn power switch ON. Wait for PRIME screen to appear.
c.
Close bag clamps. Hang and spike 2 liters of 15º - 20ºC fluid bag.
d.
Open bag clamp(s). Press PRIME to prime the system (circulate 100 ml
of fluid at 500 ml/min.) Prime volume (100 ml) countdown is displayed on
screen. Stop automatically when countdown reaches 0 ml.
e.
Press PT. LINE PRIME once to pump at 50 ml/min or press and hold to
pump at 200 ml/min. Press STOP when line is free of air bubbles.
f.
Press INFUSE to start infusion at 10 ml/min. Press INFUSE RATE
▲▼
to change flow rate.
g.
Remove the power cord. Verify that the system automatically switches to
battery when AC is disconnected. BATTERY NO HEATING message
displays to indicate the system is now in battery mode and heating is
suspended.
h.
Connect back to AC power and verify the operation is uninterrupted.
Adjust the flow rate by pressing INFUSE RATE
▲▼
.
i.
Press 500 ml/min. Verify the temperature, during steady state, on the
screen and from the thermocouple. The output temperature should be
37.5º ± 2ºC.
j.
Infuse until the fluid bag is empty, verify that the system stops pumping
and sounds an audible alarm with ‘FLUID OUT’ message displays on
screen. Close bag clamps and remove this fluid bag.
k.
Hang and spike 2 liters of 43º - 45ºC fluid bag.
l.
Prime and infuse at 500 ml/min. Compare the numbers displayed, on
screen, to the thermocouple reading. The alarm sounds when the screen
reads between 42º - 42.5ºC.
m.
Record the temperature when the “Over Temperature” alarm occurs. The
accepted tolerance of the temperature between the thermocouple and on
the screen should be within 1º to 2ºC of each other.
