Within-Lot Calibration
Within-Lot Calibration Limitations
Reagent Load/Calibration UniCel DxC Systems Instructions For Use A13914
Page 5-24 October 2005
Within-Lot Calibration Limitations
Only one within-lot calibration factor per lot can be stored in memory. Any time a
fresh cartridge is calibrated for within-lot use, the previous within-lot calibration
factor will be overwritten.
ws Reagent has been enabled for within-lot calibration but is a stand-
alone (the calibration factor currently used applies only to this
cartridge). A reagent receives this designation if:
• the cartridge was loaded before the within-lot calibration
function was turned on.
• more than 8 hours have lapsed since the cartridge was first
loaded (it has a w designation), and the cartridge is recalibrated.
• more than 8 hours have lapsed since the cartridge was first
loaded (it has a w designation) and a fresh reagent of the same
lot is calibrated for within-lot use.
• the calibration status for the reagent becomes Cal timed out.
• within-lot calibration expires.
Table 5.4 Definitions of Within-Lot Designations, continued
Designation Description
(2 of 2)
Table 5.5 Reagent Calibration Requirements
If... Then...
a newly loaded cartridge has the
same lot number as a cartridge with
previous within-lot calibration,
the new cartridge automatically receives the
correct calibration status; calibration is not
necessary.
the calibrator set point is modified, within-lot calibration factor is lost and the
calibration status becomes Cal Required.
This does not apply to the slope and offset
adjustment.
the lot number of the reagent is new
to the system,
calibration status is Cal Required for all
cartridges of that lot on the system.
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