Agilent 7890 Series Troubleshooting 3
Contents
1 Concepts and General Tasks
Concepts 10
How to troubleshoot using this manual 10
The [Status] key 10
Error conditions 11
Systems Configured for Enhanced Communications 12
Configurable Items to Always Keep Current 13
Inlet and detector configuration 13
Column configuration 13
Automatic Liquid Sampler configuration 14
Gas configuration 14
To View the Run Log, Maintenance Log, and Event Log 15
Run Log 15
Maintenance Log 15
Event Log 15
Information to Obtain Before Calling Agilent for Service 16
2 ALS and Detector Symptoms
Plunger Errors 18
Procedure 18
Vial Mishandled by ALS (7693A) 19
Alignment Light on 7693A/7650A Injector Tower is On 21
Vial Mishandled by ALS (7683) 22
Alignment Light on 7683B Injector Tower is On 24
Syringe Needle Bends During Injection into Inlet 25
FID Fails Leakage Current Test 26
Possible causes 26
Procedure 26
NPD Fails Leakage Current Test 27
FID Fails Baseline Test 28
To Resolve Low Sensitivity with an FID 29
FID Does Not Ignite 30
FID Ignitor Does Not Glow During Ignition Sequence 31
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