PerkinElmer QuantaSmart 1694267, Reference Manual

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CHAPTER 7
134 PerkinElmer Life and Analytical Sciences
If you wish to re-normalize the system for a different sample counting vial,
rerun SNC with only the new vial in position two of the SNC cassette. An SNC
cassette with an appropriate vial in position two may precede any assay using
different vial types.
4. Load the purged, unquenched Tritium standard into the third cassette position.
5. Load the purged background standard into the fourth cassette position.
If the instrument is IDLE (not counting):
Load the calibration cassette on the right-hand side of the sample changer
deck such that you can read the protocol flag.
Press the Start button to begin counting.
If the instrument is currently counting a sample:
Load the calibration cassette after the last cassette belonging to the current
protocol. When the current protocol is completed, the calibration cassette will
automatically move into the counting position. After the SNC flag is read by the
instrument, the calibration, normalization and IPA procedure begins.
Once you have defined the IPA parameters and performed IPA, you can access
the data generated from the IPA runs by selecting IPA Charts & Tables from the
IPA menu.