Troubleshooting 5-21
• System configuration (other components)
Tip: The detector may be configured as part of an Alliance system with an
Empower system, a Millennium
32
chromatography workstation, other Waters
HPLC components, or a non-Waters product.
Diagnostic tests
The detector performs some user-selected diagnostic tests to help you
troubleshoot basic system problems. “Overview of diagnostic tests and
settings” on page 5-8 has diagnostic descriptions and instructions on how to
use them. The table titled “2475 detector diagnostic tests and settings” on
page 5-10 and the table titled “General hardware troubleshooting” on
page 5-21 describe error messages that can appear onscreen as you start up or
operate the detector, and it suggests corrective actions.
Power surges
Power surges, line spikes, and transient energy sources can adversely affect
detector operations. Ensure that the electrical supply is properly grounded
and free from any of these conditions.
Hardware troubleshooting
The following table contains general hardware troubleshooting.
General hardware troubleshooting
Symptom Possible cause Corrective action
Analog output incorrect EUFS setting changed Reset the EUFS
setting.
Calibration or energy
error on startup
Flow cell has an air
bubble or UV absorber
Flush the flow cell.
Output units selection
is incorrect
Check output mode
(home screen 2).
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