K-Patents PR-23 - Handling the R.I. Liquids; Verification Procedure

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PR-23 instrucon manual
The veriication of the PR-23 sensor calibration is made using a set of standard refrac-
tive index liquids with the nominal values at 25 °C:
− 1.330
− 1.370
− 1.420
− 1.470
− 1.520
The accuracy of the certiied standard refractive index liquids is ±0.0002 and they can
be traced back to national standards: N.I.S.T Standards # 1823 and # 1823 II.
The repeatability of PR-23 sensor, i.e. the deviation from the latest n
D
calibration, is
within ±0.0002.
As the speciied accuracy of PR-23 is ±0.0002, then the representative level is the sum
of the three accuracy speciications, that is ±0.0004.
K-Patents provides a set of standard R.I. liquids, PR-2300, containing these ive liquids.
The set can be ordered directly from K-Patents or through your nearest K-Patents re-
presentative.
13.1.1 Handling the R.I. liquids
Use gloves and safety glasses or goggles. Make sure the ventilation is good, local venti-
lation is preferable. Please review the safety instructions and the MSDS shipped with
the liquids (valid inside R.I. range 1.30-1.57, safety markings valid in EU/EEA areas).
Do not put tissues or liquid bottles in household waste, dispose of waste according to
local regulations for chemical waste.
13.2 Vericaon procedure
To start the veriication process, select 1 VERIFICATION in the Main menu of your sensor.
The irst veriication display instructs you on the pre-veriication procedure:
Figure 13.2 Vericaon, pre-vericaton checks
When you are inished with the preparations, press CONTINUE (right-most soft key) to
start the veriication process.