Thermo Scientific SOLA II, User Manual

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Maintenance & Troubleshooting
General Troubleshooting
Thermo Fisher Scientific SOLA II User Guide 10-15
8. With an air gun placed at the end of one fitting, blow out any dust or
debris that may have dropped inside the pyrolyzer quartz or glass tube
(
Figure 10-13 ).
9. Follow steps 22 through 27 in the previous section, “Replacing the
Pyrolyzer Heater,” to re-install the housing and complete this procedure.
Coking (carbon buildup) can occur in the pyrolyzer reaction tube when
sample or calibration flow is too high or when there is no airflow. It is
evidenced by a light brown or black coating on the inside of the pyrolyzer
tube. Carbon built up in the reaction tube absorbs SO
2
, resulting in poor
instrument performance and invalid results.
Note
We do not recommend decoking the tube. Instead, replace the tube
according to the previous section.
σ
Decoking
General
Troubleshooting