Beckman Coulter UniCel DxC 600, Instructions For Use Manual

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A13914AF
4-22
Reagent Load/Calibration
Within-Lot Calibration
Within-Lot Designations
The designations wf, w , and ws follow the reagent lot numbers of those chemistries selected for
within-lot calibration. These designations are defined below.
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 is overwritten.
Table 4.4 Definitions of Within-Lot Designations
Designation Description
wf Reagent has been enabled for within-lot calibration and the cartridge has been
"freshly" loaded. Any
wf -designated cartridge can be used to establish a within-lot
calibration factor. A cartridge receives this designation if:
• it was loaded onto the system for the first time after within-lot calibration was
turned on.
• no more than 8 hours have lapsed since it was first loaded onto the system.
w Reagent has been enabled for within-lot calibration. A cartridge receives this
designation if:
• it was loaded for the first time after a within-lot calibration was established.
• more than 8 hours have lapsed since it was first loaded onto the system.
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 4.5 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.