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Agilent 1290 Infinity II Flexible Pump User Manual 187
Hardware Information
10
Early Maintenance Feedback
Early Maintenance Feedback
Maintenance requires the exchange of components which are subject to
wear or stress. Ideally, the frequency at which components are exchanged
should be based on the intensity of usage of the module and the analytical
conditions, and not on a predefined time interval. The early maintenance
feedback (
EMF
) feature monitors the usage of specific components in the
instrument, and provides feedback when the user- selectable limits have
been exceeded. The visual feedback in the user interface provides an
indication that maintenance procedures should be scheduled.
EMF Counters
EMF counters increment with use and can be assigned a maximum limit
which provides visual feedback in the user interface when the limit is
exceeded. Some counters can be reset to zero after the required
maintenance procedure.
Using the EMF Counters
The user- settable
EMF
limits for the
EMF Counters
enable the early
maintenance feedback to be adapted to specific user requirements. The
useful maintenance cycle is dependent on the requirements for use.
Therefore, the definition of the maximum limits need to be determined
based on the specific operating conditions of the instrument.
Setting the EMF Limits
The setting of the EMF limits must be optimized over one or two
maintenance cycles. Initially the default EMF limits should be set. When
instrument performance indicates maintenance is necessary, take note of
the values displayed by the
EMF counters . Enter these values (or values
slightly less than the displayed values) as EMF limits, and then reset the
EMF counters to zero. The next time the EMF counters exceed the new EMF
limits, the EMF flag will be displayed, providing a reminder that
maintenance needs to be scheduled.