194 Agilent 7100 Capillary Electrophoresis System User Manual
8Maintenance
Early Maintenance Feedback (EMF)
Early Maintenance Feedback (EMF)
Maintenance requires the exchange of components which are subject to wear
or stress. Ideally, the frequency at which components are exchanged or
cleaned should be based on the intensity of usage of the instrument 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
The CE instrument provides EMF counters for the CE part and the detector.
The counters increment with instrument use, and can be assigned a maximum
limit which provides visual feedback in the user interface when the limit is
exceeded. The counters can be reset to zero after the related parts are
exchanged. The CE instrument provides the following EMF counters:
• Analysis start counter
• Accumulated air pump on time
• Accumulated UV lamp on time
• Number of ignitions
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
lamp burn time is dependent on the requirements for the analysis (high or low
sensitivity analysis, wavelength, etc.), therefore, the definition of the
maximum limits need to be determined based on the specific operating
conditions of the instrument.
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