Table of Contents
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5 Troubleshooting
Appendix A
Defaults and Limits
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Flow Cell Maintenance ....................................................... 4-2
Preparative, Microbore, and SFC only) .................... 4-2
Unclogging the Flow Cell ............................................ 4-5
Replacing Tubing and/or the Flow Cell ................... 4-5
Lamp Maintenance ............................................................. 4-22
UV Lamp Maintenance ............................................... 4-22
Visible Lamp Maintenance .......................................... 4-29
Fuse Replacement ................................................................ 4-35
Troubleshooting ................................................................... 5-2
Detector Not Functioning ............................................ 5-2
Status Lights Blinking/Screen Blank or Dark ......... 5-2
Baseline Spikes ............................................................... 5-3
Baseline Noise ................................................................ 5-4
Baseline Drift .................................................................. 5-5
Autozero Out of Range ................................................ 5-6
Out of Range .................................................................. 5-6
Peaks Too Broad ............................................................ 5-7
Decreased Response to Known Sample .................... 5-7
Abnormally High System Pressure ............................ 5-7
Diagnostics ............................................................................ 5-8
Numeric Analyses on the 155 Detector .................... 5-8
Repair and Return Policies ................................................ 5-10
Telephone Numbers ...................................................... 5-10
Before Calling Us ........................................................... 5-10
Warranty Repair ........................................................... 5-10
Non-Warranty Repair .................................................. 5-10
Rebuilt Exchange ........................................................... 5-11
Return Procedure .......................................................... 5-11
Setup Mode ........................................................................... A-1
Single Wavelength Mode ................................................... A-1
Dual Wavelength Mode ..................................................... A-2
Scan Mode ............................................................................. A-2
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