Cardinal Health IVAC 571, Technical & Service Manual

Page: 31 / 104

IVAC® Volumetric Pump (Models 571 & 572) 31/104 1000SM00018 Issue 2
Routine Maintenance
Mechanism Leak Test
continued
5. Verify that the pressure (that the transducer is seeing) is not greater than 300 mmHg when set is fully pressurised. To
do this read the pressure using test
12
(Enter self-test mode, press the
RUN/HOLD
switch and select test
12).
Warning: A pressure reading greater than 499 mmHg may result in damage to the transducer.
If a high pressure reading is noted, check the following:

The pressure sensing disc is positioned correctly.

The mylar cap is adhered tightly and correctly on the pressure sensing disc.

The height of the mylar cap matches the Myler Cap Shape shown above.
6. Connect the pump to the AC mains then turn the pump ON , entering self-test mode.
7. Press the
RUN/HOLD
switch and select the burn-in test
29,
then within two seconds, simultaneously press and hold
the
PRI
switch and the
CRIS
switch.
Verify that the pump is running at 999 (or 999.9 ml/h).
8. Set the rate to 20 ml/h (or 20.0 ml/h) by simultaneously pressing the
RATE
switch and the
J K
switches. Run the
pump for at least one minute. Verify that no bubbles are visible in the water bottle.
If air bubbles are visible in the water bottle, the pump fails the test.
If the pump fails the test, verify set up and repeat the test as required, otherwise, return the pump to the
manufacturer.
9. Turn the pump
OFF
.
10. Close the roller clamp slowly . Open the door to release any pressure trapped in the pressure test set and carefully
remove the set from the pump.
Note: Take care not to stretch the silicone segment of the set as correct segment length is critical to the mechanism's
pinch-off capabilities.