Fid Cell Access; Replacing The Breather - ABB PGC2000 Operation And Service Manual

FID Cell Access

It is the customer's responsibility to ensure that the area is safe and 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.
See "AIR PURGING" in Section 4 for the X Purge override function. Do not perform
override until you have read Section 4 completely and you understand and can
perform the procedure properly.
The thermocouple, polarizer and ignitor assembly elements are fragile and can be
easily damaged if not handled with extreme care. Do not touch the end of the
elements.
Caution should be used when working with the soldering iron. The soldering iron,
melted solder and heated wiring can cause severe burns. Safety glasses and
protective gloves should be used to protect against hot molten solder and hot
surfaces. Personal protective equipment such as goggles, face shield, lab coat
and rubber gloves should be used while cleaning with solvents such as acetone.
Cleaning with solvents should be done in a well ventilated area.
1. If power is applied to the analyzer, turn it off.
2. Turn off oven air to the Isothermal Oven and allow all temperature zones to cool.
3. Turn off carrier and other gases, as applicable.
4. Open the isothermal oven door.
5. For temperature programmed units, you must remove the insulated covers surrounding the FID
cell body to access any of the FID cell internal components.

Replacing the Breather

1. Disconnect the red coaxial cable located on the top of the detector.
2. Loosen the breather set screw using a 0.050-inch Allen wrench, then extract the adapter fitting
from the detector.
3. Using a 9/16-inch open-end wrench and a 1/2-inch backup wrench, disconnect 1/4-inch vent
connection from breather.
4. Remove the breather with adapter fitting from the analyzer oven.
5. Remove adapter fitting from breather using 3/4-inch and 1/2-inch open-end wrenches.
6. Using a 3/4-inch open-end wrench and a 1/2-inch backup wrench, remove the 1/4-inch male
connector from the existing breather.
7. Remove existing Teflon tape from the nipple of the adapter fitting and apply new tape.
8. Remove the existing Teflon tape from the male connector and apply new tape.
8-16
CAUTION
2000-OSM, F1