Cleaning The Collector - ABB PGC2000 Operation And Service Manual

8. Extract the jet with the adapter fitting from the jet cavity in the detector.
9. Inspect the end of the jet for damage. It should not be pitted or plugged. If pitted, replace with a
new jet.
10. Insert a 0.016-inch diameter piano wire into the jet and rod it out. If the piano wire will not pass
through, replace the jet.
11. Using a syringe and protective equipment and clothing, flush the jet with a mild solvent such as
acetone; then blow dry with 15 psig clean air, nitrogen or helium.
12. Use a 5/8-inch adapter fitting to insert the jet into the jet cavity. Finger tighten and finish
tightening using a 5/8-inch open-end wrench.
13. Insert the column end, ferrule and adapter nut into the detector inlet and finger tighten; then
loosen 1/8 turn.
14. If the ferrule was loose and slid any length on the column, continue to push the column into the
detector analysis inlet until it stops.
15. Withdraw the column approximately one mm and tighten the 1/2-inch adapter nut finger tight.
Tighten the nut 1/4 turn more with a 1/2-inch open-end wrench, then check it for a secure fit by
gently attempting to pull the column slightly away from the detector. Carefully tighten the adapter
until the column is secure.
16. For CENELEC and CSA models, slide the 7/16-inch packing adapter nut and ferrule toward the
detector and install finger tight. Tighten the nut an additional 1/4 turn with a 7/16-inch open-end
wrench.
17. For temperature programmed units, install the detector can assembly and secure it with the hex
head screws using a 9/64-inch Allen wrench or ball driver. Be sure to align the three holes such
that the edge of the can is parallel with edge of the temperature programmed oven.

Cleaning the Collector

1. For temperature programmed units, remove the temperature programmed oven covers as
described in "Cleaning the FID Jet."
2. Disconnect the column and remove the jet as described in Cleaning the FID Jet."
3. Remove the breather as described in "Replacing the Breather."
4. Remove the thermocouple as described in "Replacing the Thermocouple Assembly."
5. Access the detector elements as described in "Accessing the Polarizer and Ignitor Elements."
6. Remove the polarizer and ignitors described in "Replacing the Polarizer" and "Replacing the
Ignitor Assembly."
7. Use a small stainless steel brush precleaned with acetone to remove chloride accumulations from
the collector, by inserting the brush through the detector inlet connection and briskly scrubbing
with an in-and-out motion.
8. Install the detector elements as described in "Accessing the Polarizer and Ignitor Elements."
9. Install the column as described in "Packed Column Installation" or "Capillary Column Installation."
2000-OSM, F1 8-21