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Advanced
™
Osmometer Model 3250 User’s Guide
Step 11 — Check initial factory calibration
Your instrument has been carefully calibrated (including the optional
Zero calibrator) by the manufacturer, but to verify that this calibration
is accurate within your operating environment, run tests using low and/
or high range calibration standards before testing samples. The number
and type of tests that you run should be determined by your own
laboratory’s standard protocol. Use the operating technique described
in Chapter 2 when running these materials.
If you determine that the initial calibration is incorrect, recalibrate as
described in Chapter 4.
Note If the 3250 has just been moved from a different location, it
should be allowed to warm up for 20 to 30 minutes before
running calibration verification tests.
Step 12 — Proceed to Chapter 2
If you have followed the steps outlined in this chapter, your instrument
is ready for use. To learn how to operate your instrument, read the
next chapter, Instrument Operation. We strongly recommend that you
read the entire second chapter before attempting to operate your
osmometer.
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