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Preventive Maintenance
Conditioning chemical traps
200
Conditioning chemical traps
Remove the trap from its installed location and attach it to a clean, dry
gas source (helium or nitrogen). Attach the 1/8•inchend (male) of the
chemical trap assembly to the reconditioning gas source using a graphite
or a graphitized Vespel ferrule (Part No. 0100-1 107) and swage nut (Part
No. 0100-0058), as metal type ferrules will damage the sealing surface of
the 1/8•inchadapter. Remove the O•ring(Part No. 5180•4181),as the
conditioning temperature will destroy it. Set oven temperature to 300
C.
Establish a purge gas flow of 60 to 100 ml/min overnight (sixteen hours).