RADIOMETER ABL800 FLEX, Operator'S Manual

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ABL800 FLEX Operator's Manual 6. Calibration
Interrupted, pending or expired calibrations
A calibration is interrupted when the operator presses the Stop button during the
calibration process. The analyzer performs a rinse before returning to the Ready
mode.
Interrupted
calibrations
If the interrupted calibration was a scheduled calibration, it will be automatically
performed after the analyzer has been in the Ready mode for three minutes without
any activity, i.e. measurements. The scheduled calibration becomes pending if
interrupted.
A calibration is pending when a scheduled calibration cannot be performed at its
scheduled time because the analyzer is occupied with another function, e.g.
measurement.
Pending
calibrations
A pending calibration is indicated by a clock symbol next to it on the Analyzer
Status – Calibrations screen as a warning.
A pending calibration will be performed three minutes after the analyzer has
returned to the Ready mode without any activity. If more than one type of
calibration is pending, the highest-priority calibration is performed. The
calibrations are given in descending order of priority, the 2-point calibration
having the highest priority.
If a calibration is pending, a scheduled AutoCheck measurement will be postponed
until after the calibration has been performed.
Expired
calibrations A full calibration means that all parameters are calibrated. Normally, a full
calibration is a 2-point calibration, but in the case of glucose and lactate electrodes
it is a 1-point calibration.
A calibration is expired and considered to be invalid when:
•
an electrode or electrode membrane is replaced.
•
the time interval since the last accepted full calibration exceeds the time interval
between two full calibrations
plus a 1-point calibration.
Under these conditions a “Cal expired (parameter)” message appears in the
Activity and System Messages logs, and the replaced item is also recorded in the
Activity log.
An expired calibration can be remedied by performing a successful full calibration
after a replacement.
Upgraded
calibrations Whenever a 2-point calibration contains an error, the next calibration will be
upgraded to a 2-point calibration. If a 2-point calibration contains errors on Glu,
Lac and oximetry parameters only, the errors can be remedied by a 1-point
calibration. Thus the next calibration will not be updated to a 2-point calibration. A
1-point pH/BG calibration (the USA only) will, however, be updated to a 1-point
calibration.
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