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6
Troubleshooting
Troubleshooting Tips
Troubleshooting Tips
General System Troubleshooting
96
Surveyor LC Pump Plus Hardware Manual
Begin the diagnosis of the problem by performing the following steps.
Eliminate all other possible sources of trouble: Before you invest time trying to diagnose a
suspected pump problem, verify that the pump is the only source of difficulty. Systematically
eliminate all other instruments in your Surveyor HPLC system as the source of trouble. If you
are not sure which component of your chromatography system is responsible for poor system
performance, the General LC System Troubleshooting section in this chapter contains many
useful suggestions.
When you are sure that it is the pump: Once you have isolated the pump as the only
remaining source of difficulty, proceed to the troubleshooting tables for help in determining
the exact cause of the problem.
This section contains general troubleshooting tips for the Surveyor HPLC system.
No flow
1. Check mobile phase connections.
2. Check for leaks.
3. See item #3 on
page
High backpressure
1. Check the flow rate and the system/column specifications.
2. Check for tubing or column blockage.
3. See item #8 on
page
Unstable Baseline or Drift
1. System column not equilibrated; allow more equilibration time.
2. Refer to the troubleshooting guide in the hardware manual for your detector.
Baseline Noise
1. Check for air bubbles in the system.
2. Check for solvent contamination.
98.
99.
Thermo Scientific
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Table of Contents
Troubleshooting
