8
VIII. INSTALLING A PURIFIER CARTRIDGE
1.
Remove the two metal diffusion-proof plugs from the purifier cartridge Inlet
and Outlet (positioned at the bottom of the cartridge).
2.
Remove the knurled ring (
5
) from the baseplate and place it around the purifier
cartridge.
3.
Place the purifier cartridge, along with the knurled ring, onto the baseplate,
making sure all three holes on the bottom of the cartridge align with the two
valves and positioning pin located on the baseplate.
4.
Push the cartridge completely down onto the baseplate, and
hand tighten
the
knurled ring while holding down the cartridge until it is firmly connected to the
baseplate.
NOTE :
1.
Once the purifier cartridge is positioned on the baseplate the Teflon seals will
be punctured. It is necessary to keep the purifier cartridge in position to prevent
air from entering the system.
2.
Regularly check both the big and small Viton O-rings on the baseplate for hair
cracks. The slightest leak allows moisture, oxygen and hydrocarbons to enter
the system and contaminate the gas.
3.
All MATHESON PUR-Gas purifier cartridges are packed under Argon, except
for the special Helium-specific GC/MS purifier cartridges.
IX. REPLACEMENT OF A PURIFIER CARTRIDGE
A purifier cartridge needs to be exchanged when the visual indicators start changing
color. The
original indicator color and the color after saturation are listed in the table
below.
Indicator Color Changes
Type of Purifier
Indicator Color Change
Moisture
Brown to white
Oxygen
Green to gray
Hydrocarbon
No indicator
Combi
Brown to white
Triple
Brown to white
Green to gray
