Excitation And Emission Grating Resistance History - Agilent Technologies 1100 Series Reference Manual

4
Troubleshooting and Test Functions

Excitation and Emission Grating Resistance History

This test runs automatically when the instrument is turned on (not accessible
as an external test).
It provides the resistance history of the excitation and the emission grating
drives. The number of revolutions after switching off the drives is a measure
of friction. The history may show an increasing friction of the drive(s) over a
length of time.
The history data contains the data/time information and the number of turns.
The data/plot can be retrieved via the diagnostics.
Figure 46
Friction Evaluation
Motor Error
Probable Causes
• Friction too high (< 12 turns)
• Defective monochromator assembly.
Suggested Actions
118
Resistance History
Exchange the monochromator assembly.
1100 Series FD Reference Manual