Thermo Scientific TVA2020 Instruction Manual page 115

Thermo Fisher Scientific
Problem
High background readings
Possible Reason
Sampling non-volatile
compounds
High ambient concentration
Zero drift/improper
calibration
Sample line contamination
Detector capsule
contamination
Troubleshooting
Troubleshooting Guide
Solution/Action
Service pump.
Call Thermo Fisher Scientific
Service Department.
N/A.
Ensure proper zero/span
calibration.
Clean/replace sample line.
Clean/replace filter cups.
Clean/replace FID capsule.
Clean PID window.
Replace PID capsule.
TVA2020 Instruction Manual 6-5