K-Patents PR-03 - Manual (Page 119)

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D Instrument verification ISO 9000 113
If the above checks 1 and 2 fail, please contact K-Patents or your local K-Patents representative for corrective
action.
If the above check criteria are met, the instrument can be calibrated. Calibration is done with minimum five,
preferably seven, standard R.I. liquids as follows:
1. Mount the sensor on the service bench.
2. Use certified standard R.I. liquids. The middle value should correspond to the middle value indicated in
the Final test section of the latest Delivery Data Sheet or Standard calibration sheet of the PR-03. Then
take 2-3 values above and below this middle value.
3. Record R.I. value and corresponding TEST and temperature values from the Normal display of PR-03.
4. Send the table of values to K-Patents or to K-Patents local representative.
5. K-Patents calculates new calibration parameters for R.I. measurement.
6. Key in the new parameters (soft keys C-B-6-1/2/3/4) and then repeat the verification check as described
above.