Advanced Instruments 3300, User Manual

Page: 29 / 77

the precision and reliability of your osmometer results. Protinol should
be used once every shift.
Advanced Five-Level Linearity Set (Part No. 3LA028)
The Advanced Linearity Set contains five controls (100, 500, 900, 1500,
and 2000 mOsm). Use this set to verify or establish the reportable range
of patient test results.
Sample test procedure
Use the following procedure to run sample tests.
1. Snap a sample tip into place on the sampler. The sample cell must be
straight and firmly seated. Be careful not to crack the sample tip.
2. Depress the sampler’s plunger and insert the sample tip at least
¼ inch (6 mm) below the surface of the fluid to be tested. Gently
release the plunger to load a 20-µL sample.
3. Visually inspect the sample. If there are any large voids or bubbles in
the sample, expel the sample and load a bubble-free sample.
4. Blot the sides of the loaded sample cell with a soft, no-lint, non-ionic
paper tissue to remove any clinging droplets. Then blot the end of
the cell tip to remove any fluid protruding beyond the tip. Be careful
not to wick out any of the sample. The meniscus remaining may be
11
Instrument Operation
Figure 3: Sample Cell Tips and Sample Levels