User manual

1260 Nanoflow Pump User Manual 135
Maintenance
9
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.