Cutting Capillary Columns; Repairing The Flame Ionization Detector - ABB PGC5000 Series Service Instructions Manual

PGC5000
PGC5000 Series Service Instructions
10. Turn on analyzer.
11. Set carrier pressure and purge column for at least 30 minutes and leak check. NOTE: SNOOP™ IS NOT recommended for
leak checking capillary columns.
12. Perform the PGC5000 series startup procedure as described in the Operation Guide (OI/PGC5000).

7.1.4 Cutting capillary columns

The procedure for cutting glass or metal capillary columns is the same, except that a small sharp file may be used to score metal
columns.
Do not use high speed cutting wheels or grinders to cut capillary columns. This type of cutting generates
heat that can damage the column and the resultant column cuttings could plug the column.
1. Use a diamond or ceramic scoring tool to score the surface of the outside tubing wall approximately one inch from the end
of the column. Take care not to cut through the tubing wall.
2. Wipe the scored area clean to prevent material from entering the column.
3. Secure the column with your fingers 1/2-inch on each side of the score and gently bend the tubing at the score, in the
direction opposite the score.
4. When the score point opens, bend the tubing back towards the score. The tubing should make a clean break.
5. Inspect the end of the column for roundness and ensure it is burr free. If the end is not round and burr free, repeat the
procedure until it is.
6. The column is now ready for installation.

7.2 Repairing the flame ionization detector

Refer to Figure 7.1 for FID component location.
Breather
Adapter
Thermocouple
Ignitor
Fig. 7.1. Flame Ionization Detector
This repair should only be attempted by people who are properly trained and possess the expertise for
this repair.
Before disposing of any residual insulating materials, ensure that disposal methods comply with all
applicable regulatory restrictions.
It is the customer's responsibility to ensure that the area is safe and hazard free, and will remain so the
entire time the analyzer is open. This responsibility includes ensuring adequate ventilation in analyzer
shelter and obtaining proper work permits, etc.
The thermocouple, polarizer and igniter assembly elements are fragile and can be easily damaged if not
handled with extreme care. Do not touch the end of the elements.
SI/PGC5000-EN, Rev B
Microdot
Connector
Polarizer
Jet
7 Subassembly repair
53