Teledyne T200 Operation Manual page 215

Teledyne API – T200 NO/NO
I
MPORTANT
06858E DCN7057
/NO Analyzer Operation Manual
2 X
3. Remove the integrated screws with a Phillips screw driver and remove the scrubber
manifold from the chassis.
4. Using a 9/16" wrench, remove both fittings from the cartridge.
5. Discard the glass wool.
6. Pour the contents of the scrubber manifold onto a sheet of white paper. If
necessary, remove the plug to ensure that all the contents are poured out.

Notice any discoloration of the contents, which is usually white and slightly
transparent.

The amount of discolored chemical (usually with yellow tint) may give you an
indication of the lifetime of the chemical in your application.
The maintenance cycle of this item is dependent on ambient moisture, sub-micron
particle load and other factors and may differ from that shown in Table 11-1.
7. Discard the used silica gel desiccant without touching it. It may contain nitric acid,
which is a corrosive and highly irritating substance.
CAUTION – G
Immediately wash your hands after contact with the silica gel disiccant.
8. Using a small powder funnel, fill the cartridge with about 10 g new silica gel
desiccant (Teledyne API P/N CH43) so that it is level on both legs of the cartridge.

Slight vibration is required to settle the chemical into the cartridge and achieve
tightest packing, which increases performance and lifetime of the filter.

Ensure that the level of the chemical does not protrude farther than the first two
threads of the NPT fitting.
Use only genuine, pre-conditioned Teledyne API's refill kits for this procedure.
Teledyne API's refill kits have been properly conditioned to prevent a significant
increase of the T200's Auto Zero value which can cause large negative offsets,
which may take 2-3 weeks to disappear.
Do not leave this material uncovered for more than a few seconds, as it will
absorb contaminants from ambient air. Always store unused, well-covered refill
material in a cool dry place.
9. Seal the silica gel desiccant with 1 cm

Ensure that the plug is large enough and compressed into the cartridge so that
the chemical is securely held in place.
10. Add new Teflon tape (P/N HN000036) to the NPT fittings.
11. Screw the NPT fittings back into the scrubber manifold.
12. Screw the cartridge back onto the chassis; orientation is not important.
13. Evaluate the ferrules on the tubing.

If the ferrules are too old, we recommend replacing them with new ferrules.
14. Reconnect the tubing using 7/16" and 9/16" wrenches.
S
ENERAL AFETY
I R
MPACT ON EADINGS OR
3
of glass wool on each well.
Instrument Maintenance
H
AZARD
D
ATA
213