Cardinal Health IVAC 571, Technical & Service Manual

Page: 20 / 104

IVAC® Volumetric Pump (Models 571 & 572) 20/104 1000SM00018 Issue 2
Configuration & Calibration
Calibration Procedures
(continued)
Rate Accuracy Calibration (Test 8)
There are two types of rate accuracy associated with the pump, these are System Rate Accuracy and Pump Rate Accuracy.
System Rate Accuracy is the rate accuracy of the pump when used with a standard "52" Series infusion set. Due to slight
variations in between sets, the system accuracy of the pump is ± 5%. Pump Rate Accuracy is the absolute rate accuracy of
an individual pump which can only be determined with the use of a characterised set.
The following procedure describes how to calibrate the Pump Rate Accuracy. For instructions on how to verify Pump Rate
Accuracy, see 'Rate Accuracy Verification' in Chapter 3, 'Routine Maintenance'.
Equipment required:

Characterized set (191806)

Stopwatch

Class A burette (50 ml) with 0.1 ml
graduations
Preparation:
1. Set up the equipment as shown.

The vertical distance from the
fluid level of the container to
the pump pressure transducer
should be 34 ±4 inches

The burette zero line should
be within ± 2 inches from the
pump pressure transducer.
Verify that the inside of the
wall is free of droplets

Ensure fittings are secure and
there is no leakage through
the 3-way stopcock

Ensure that the air has been
purged from the characterised
set and all equipment
2. Close the set roller clamp.
3. Plug the pump into the AC mains
and turn the pump
ON
.
Characterised Sets (part number 191806)

Must be used for rate accuracy calibration

Sets are labeled with a serial number, a nominal volume and an expiry date (180 days from the date
the set was characterised)

Handle sets with care at all times. Sets must not be pressurised. Prior to loading or removing from
the pump, manually open the auto-pinch-off mechanism. Do not stretch the set excessively

Record the number of times each set is used in a log book. A set must not be used for more than 20
rate runs.
Burette
Water Source
Burette Clamp
Table
or Bench
Tubing
Set Tubing
Used Fluid
Recptacle
Three-way
Stopcock
Pressure Transducer
(level with)
34 ± 4 inches (86 ± 10 cm)
Equipment Stand