Early Maintenance Feedback (Emf); Emf Counters - Agilent Technologies 1100 Series Reference Manual

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 should be
based on the intensity of usage of the detector 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 detector provides three EMF counters for the lamp. The counters
increment with lamp 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 lamp is exchanged. The detector
provides the following EMF counters:
• number of flashes (low power mode, multiples of 1000 flashes)
• number of flashes (high power mode, multiples of 1000 flashes)
• Flash Lamp Life-Time (value of 0 – 100% as expected lifetime factor
Figure 89
input energy. The lamp flash frequency/energy can be changed into the
following modes:
Table 56
Position
Rotation (Multi Ex/Em)
1100 Series FD Reference Manual
calculated from combined expected lifetime low power and high power
flashes).
on page 260 shows the lamp life based on number of flashes vs. the
Flash Lamp Modes
Introduction to the Fluorescence Detector
296 Hz (Standard), 560 V
74 Hz (Economy), 560 V
74 Hz (Standard), 950 V
74 Hz (Economy), 560 V
63 mJoule (18.8 W)
63 mJoule (4.7 W)
180 mJoule (13.3 W)
63 mJoule (4.7 W)
7
259