Fig. 106
2. Place the check sample in the instrument using the small cup holder.
3. Close the lid.
4. Click Start and enter pin code '1234' to run the check sample definition.
The check sample will now go through a series of analysis. ISIscan Nova may
ask you for a Sample number (depending on settings in Operation profile. A
Sample number is not required, but if you have more than one check sample it
could be wise to enter the Serial number of the check sample in this field for
future reference.
Fig. 107
5. Result for the check sample test is displayed after analysis.
If the check sample test fails, the results are displayed in yellow or red colours
depending on whether the results are outside warning or error limits.
Samples can still be analysed even after a failed check sample but they will be
highlighted as Warning (in yellow) to indicate that last check sample was not OK.
Please consult your local standard operating procedures how to act on a failed
check sample.
The artificial check sample should not change over time but it may have been
physically damaged or altered. Please control that correct check sample was used
and that the glass surfaces on the check sample cup and the instrument are clean.
Run the check sample test again to verify whether results are still outside limits.
Also verify that correct limits for the check sample are set up in FossManager.
If the check sample is deemed to be OK, then running the Instrument Diagnostic
(from Care View) may give you an indication of whether something has changed
inside the instrument. Should the Instrument Diagnostic fail, then our
recommendation is to contact your local FOSS representative for assistance.
Instrument Calibration for is found in the Care menu and it includes two
functions:
• Wavelength calibration, using either the built-in internal wavelength reference
standard or the external wavelength reference standard (EWC).
• Intensity Correction, using the external reference correction standard (ERC).
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