Figure 135 Verification in progress
The sample holder keeps the sample on the prism surface and also blocks the ambient light
from reaching the prism.
Press COMPLETE in the verification display finishes the verification procedure and calls up
the verification results.
If verification is successful, meaning that all measurements are within ±0.0004 of the
nominal values, you get the message VERIFICATION OK, see the following figure.
Figure 136 Verification completed successfully (here only with one RI liquid)
The sensor verification concerns only the refractive index n
D
measurement. The
calculation of concentration from n
D
and process temperature TEMP is not included, see
Calibrating concentration measurement (page 72).
If the verification fails, see Corrective action (page 249).
Chapter 16 – Sensor verification
245
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