Operation, Removing the hp2 or np2 from the system – VICI NP2 User Manual
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Installation and Operation
Operation
In normal operation the outside temperature of the purifier is warm, but
should not be uncomfortable to the touch. The 24 VDC power supply main-
tains the purifier trap at a constant temperature, and should be located so
that the illuminated LED can serve as a visual indicator of purifier operation.
Removing the HP2 or NP2 from the System
To remove the purifier from the carrier gas line:
1.
Disconnect the power supply. Disconnect the output line from the
instrument while maintaining carrier flow.
2.
Allow several hours for the the getter oven to cool. After the oven
reaches ambient temperature, cap the output line and allow the
purifier to be pressurized for several minutes.
3.
Remove the input line and immediately cap it. This maintains a carrier
gas atmosphere on the gettering substrate, increasing its lifetime.
To reinstall, follow the instructions in the Installation section at the top of
page 3.