Advanced Instruments 3300, User Manual

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3. The calibration program will prompt you for a second 50 mOsm cal-
ibration standard. Run the second 50 mOsm calibration standard.
When the test finishes, your instrument will display a result and
prompt you for an 850 mOsm calibration standard.
4. Run your first 850 mOsm calibration standard as described above.
The program will report a result and request another 850 mOsm cali-
bration standard. Continue in this manner until the instrument dis-
play reads
“ Calibration complete ” . The program can require any-
where between three and six 850 standard samples, depending on the
repeatability of the results.
5. Verify the calibration by running a Clinitrol 290 reference solution
before running unknown samples.
If the instrument display shows “ Calibration Not Complete ” after six
samples at either calibration level, the calibration procedure has failed
and you should carefully repeat the procedure. If you experience
“ Calibration Not Complete ” more than once, you have a repeatability
problem and should consult Chapter 4 for troubleshooting and service
information.
Calibration notes
• The Model 3300 will retain its previous calibration data until it com-
pletes a re-calibration and the display reads
“ Calibration
Complete ” .
• If the instrument has calibration information in memory and you
have not changed any probes, the first test result displayed should be
close to the nominal value of the standard loaded. If the instrument
has no calibration information in memory or a probe has been
changed, the test result displayed may be far from the nominal value
of the standard loaded. If the displayed values repeat consistently,
the calibration will automatically adjust when the calibration test
sequence is complete.
Advanced
®
Osmometer Model 3300 User’s Guide
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