Legacy® PLUS - Smiths Medical
Legacy® PLUS - Smiths Medical
Legacy® PLUS - Smiths Medical
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Accuracy Tests<br />
Gravimetric Accuracy Testing<br />
Description<br />
Section 5: Reference<br />
A Medication Cassette Reservoir is partially filled with water and<br />
weighed, then attached to a pump that is set to deliver a certain<br />
amount of water. The Medication Cassette Reservoir is then removed<br />
and weighed again. The amount of water delivered is compared to the<br />
amount that the pump should have delivered.<br />
Nominal system accuracy is given in the technical specifications section<br />
for the pump. That is, under the test conditions described below, the accuracy<br />
of the pump and Medication Cassette Reservoir will be nominal<br />
with a 90% confidence level. The nominal test conditions are as follows:<br />
degassed water at 25 ± 5°C without back pressure.<br />
Equipment needed<br />
50 or 100 ml Medication Cassette Reservoir with attached CADD<br />
Extension Set with Anti-Siphon Valve OR<br />
50 or 100 ml Medication Cassette Reservoir with flow stop feature<br />
with attached CADD Extension Set (catalog numbers start with<br />
21-73xx)<br />
50 or 60 ml syringe<br />
A balance accurate to 0.1 g<br />
40 ml of room temperature water<br />
Procedure<br />
1. Fill the 50 or 60 ml syringe with 40 ml of water. Transfer the water<br />
into a Medication Cassette Reservoir.<br />
2. Remove any air from the Medication Cassette Reservoir by aspirating<br />
the air with the syringe. Attach the CADD Extension Set.<br />
Prime the tubing so it is filled with fluid to the end of the extension<br />
set Luer.<br />
Reference