Using The Emf Counters - Agilent Technologies 1200 Series Manual

7
Maintenance
Early Maintenance Feedback (EMF)

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 wear
of pump components is dependent on the analytical conditions, 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, no EMF limit should be set. When performance indicates
maintenance is necessary, take note of the values displayed by pump
liquimeter and seal wear 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.
74 1200 Series Quarternary Pump User Manual