Thermo Scientific TRACE GC Ultra Maintenance And Troubleshooting Manual page 289

Clean the Flame-side Heat Shield
6. Using the tool provided with the GC, loosen the
fixing nut on the base of the detector and
remove it.
CAUTION Pay attention not to lose the
aluminium ring inserted
between the detector head and
the base body.
7. Loosen the Allen screws on the mirror plug and
remove it.
8. With the aid of a cotton stick, clear the surface
of the heat shield that faces the flame. If
necessary, use a solvent like methylene chloride
or methanol to help cleaning the heat shield.
CAUTION While cleaning the heat shield,
pay attention not to damage the
ignition coil.
9. Using a clean paper towel, clean the mirror
surface of the plug. If necessary, use a solvent
as methylene chloride or methanol to remove
deposits and a metal polishing paste to restore it
to the previous reflectivity.
Maintenance and Troubleshooting Manual
Maintaining a Flame Photometric Detector
Chapter 14
289