Download Print this page

Agilent Technologies 7890A Troubleshooting Manual page 47

Gas chromatograph

Hide thumbs Also See for 7890A:

FPD Low Peak Areas

Troubleshooting

• Check the flow settings, then measure the actual detector

flows. (See "To Measure a Detector Flow".)

• Perform complete inlet maintenance: Replace all

consumable parts and bake out the inlet.

• Perform column maintenance: Bake out contaminants,

remove the contaminated length of column near the inlet,

and reverse and bake out the column as needed.

• Verify that the column is installed properly.

• Consider the filter type (sulfur or phosphorus).

• Check the system for leaks. (See "Checking for Leaks".)

• Verify that the method settings are appropriate.

• Check the flow rates.

• Check the makeup gas type.

Chromatographic Symptoms