Waters 2475 - Page 12

xii Table of Contents
Replacing the fuses ......................................................................................... 4-14
Cleaning the instruments exterior ............................................................. 4-15
5 Error Messages, Diagnostic Tests, and Troubleshooting ............. 5-1
Startup error messages ................................................................................... 5-2
Operational error messages ........................................................................... 5-3
User-selected diagnostic tests and settings ................................................ 5-8
Overview of diagnostic tests and settings ...................................................... 5-8
Sample and reference energy diagnostic tests ............................................. 5-11
Raman signal-to-noise test diagnostic test................................................... 5-12
Input and output diagnostic tests and settings ........................................... 5-12
Change-lamp function ................................................................................... 5-15
Testing the keypad ........................................................................................ 5-16
Testing the display ........................................................................................ 5-17
Other diagnostic tests and settings .............................................................. 5-17
Generating test peaks.................................................................................... 5-17
Overriding the optical filter setting.............................................................. 5-18
Reducing PMT sensitivity ............................................................................. 5-19
Troubleshooting .............................................................................................. 5-20
Introduction.................................................................................................... 5-20
Information needed when you contact Waters............................................. 5-20
Diagnostic tests.............................................................................................. 5-21
Power surges .................................................................................................. 5-21
Hardware troubleshooting ............................................................................ 5-21
A Safety Advisories .................................................................................. A-1
Warning symbols ............................................................................................... A-2
Task-specific hazard warnings........................................................................ A-2
Specific warnings ............................................................................................. A-3
Caution symbol .................................................................................................. A-5
Warnings that apply to all Waters instruments ......................................... A-6
Electrical and handling symbols ................................................................. A-12