Cardinal Health IVAC 571, Technical & Service Manual

Page: 18 / 104

IVAC® Volumetric Pump (Models 571 & 572) 18/104 1000SM00018 Issue 2
Configuration & Calibration
Calibration Procedures
(continued)
Dry Set Pressure Calibration (Test 13)
Equipment required:

Test jumper cable (142109)

Pressure gauge

"52" Series IV infusion set (dry set)
Procedure:
1. Remove the chassis from the body. See Chapter 6, 'Spare Parts Procedures' for instructions.
2. Attach the jumper of the test jumper cable between connector J7 on the Logic Board and connector P7 on the
Accessory Interface Board.
3. Connect the battery pack to the battery connector.
4. Set up equipment as shown below.
Note: Set the pressure unit selector switch (on the back panel of the pump) to the same units as the air pressure
source.
5. Enter self-test mode, press the
RUN/HOLD
switch and select test
12
. Press the
RUN/HOLD
switch again to display the
pressure
MMHG
(or
CMH20
).
Ensure the pump is connected to the AC power supply for approximately 30 minutes before continuing with this
calibration.
6. Enter self-test mode, press the
RUN/HOLD
switch and select test
13.
Press the
RUN/HOLD
switch again to display
PRES CAL
.
7. With the door open and no set loaded, adjust the zero potentiometer (R20 on the Analog Board) so the pump reads
000 ±1 mmHg (or 000 ±1.4 cmH20).
8. Install an IV infusion set, close the door and apply a test pressure of 000 mmHg (000 cmH2O) to the distal end of the
set. Record the reading displayed as the PI offset value.
9. Apply a test pressure until the meter reads 400 mmHg (544 cmH2O) and adjust the span potentiometer (R23 on the
Analog Board) so the pump reads 400 mmHg ±2 (544 cmH20 ±10 ) plus the offset value, PI, recorded in the previous
Step.
10. Return the test pressure to 000 mmHg (000 cmH2O), bleed off any air from the IV infusion set then remove the IV
infusion set.
Note: If the set is removed when still under pressure may result in damage to the pressure sensing disc film.
11. Leave the door open and reverify that the pump reads
000
±1 mmHg (000 ±1.4 cmH2O). If not, repeat the procedure
from Step 7, until no further adjustment of the
zero
and
span
potentiometers is required.
6
Reservoir
Pressure
Gauge
Air
Pressure Source
Proximal
End of Set