Advanced Instruments 3300, User Manual

Page: 30 / 77

slightly concave, but the sample must be slightly longer than it is
wide. (See figure 3.)
5. Remove the chamber cleaner from the sample port and discard.
6. Holding the sampler by the barrel and letting the filled sample tip
follow the guide groove into the sample port, rest the sampler within
the operating cradle and beneath the cradle top.
7. To start the test, push the entire operating cradle down until it reach-
es a positive stop. Your instrument will run the test for approximate-
ly one minute and display the result in the format
“
Osmolality xxx
mOsm ” .
8. Record the results and raise the operating cradle to a positive stop.
9. Remove the sampler from the operating cradle.
10.Insert a clean, dry chamber cleaner into the sample port and rotate it
four or five times in both a clockwise and counterclockwise direc-
tion. Withdraw chamber cleaner and insert the opposite end. Rotate
the chamber cleaner in the same manner and leave it in the sample
port until your next test.
11.Remove the used sample tip from the sampler by pressing firmly
enough on the sampler plunger to dislodge the tip. Discard the used
sample tip.
12.Blot the Teflon plunger tip with a soft, no-lint, non-ionic paper tis-
sue. Be careful not to dislodge the tip.
13.To run additional tests, repeat this procedure beginning with step 1.
Sample test errors
Occasionally a test will not run to completion and your instrument will
display an error message. Refer to the Troubleshooting Table appendix
at the end of this user’s guide for an explanation of a particular mes-
sage.
Advanced
®
Osmometer Model 3300 User’s Guide
12