Document/Revision No. IM-EN-SDGEN2-BP 1.02 Effective: December 2, 2014
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5.1 Prism Wash Test
Prism wash system is essential for a fully functional refractometer. Regular testing of the
prism wash is highly recommended.
The curve should react to the wash and the temperature change slightly.
NOTE:
Your transmitter may not look excatly like the image above during the wash. The
visible changes in the curve and the temperature depend on viscosity, steam pressure and
temperatures of solids and steam and also to your version of the software.
Figure 17
Changes in concentrations during succesful prism wash
5.2 Calibration Check
Extract 3-5 samples in a couple of days’ time. Results from these samples can be used as a
reference for calibration.
In case there are deviations from the lab results, check that washes are functioning correctly
(see Prism wash test in the commissioning checklist).
When comparing lab results if there is a consistent offset, perform a BIAS adjustment from
CALIBRATION menu. For more information, see chapter
Calibrating the concentration
measurement
in K-Patents PR-23 Instruction Manual.
