K-Patents PR-23 - Manual (Page 191)

13 Sensor verification 183
− Insufficient cleaning of the prism.
− Too old calibration liquids
− Bad temperature control (changing temperature)
Figure 13.9 Verification failed
If verification fails even on the repetition of the verification procedure, fill in the
PR-23 sensor verification form (available in Appendix C and send it to K-Patents
or your nearest K-Patents representative or email the collected information to
<[email protected]> and wait for further instructions.
For the sensor verification form, you need to collect data from the Verification step
2 display and the Verification results display. The sensor’s serial number is shown
in the upper right corner of each display. The measured n
D
(RI) is given when VERIFY
has been pressed in Verification step 2. The list of CCD and TEMP values are found on
the verification results display, see (Figure 13.10)
Figure 13.10 Finding verification information for PR-23 sensor verification form