INFICON Explorer Portable Gas Chromatograph - Manual (Page 51)

Introduction
Storing Explorer
When storing Explorer, the following conditions must be maintained:
You must maintain a flow of carrier gas through the columns to prevent
contamination. Fill the internal cylinder or connect an external supply of carrier
gas.
Do not allow the internal cylinder to empty completely. The internal cylinder
and the columns will become contaminated.
If the internal cylinder is completely empty when you come to use the
Explorer
you must first purge the internal carrier gas cylinder, see page 266, and then
flush the column after filling the instrument with carrier gas. Allow the
instrument to warm up for 30 minutes. Monitor the offset level as displayed on
the status screen and wait until it has stabilized before attempting to use the
instrument. An instrument that is cleaning out, will show an unstable and
dropping baseline. Typical offset is in the range 200-800 mV and anything
over 800 mV indicates contamination.
Store Explorer in a location that is free of volatile organic vapors and gases.
The ambient temperature must be above 0 C (32 F) and below 40 C
(105 F).
If the battery pack has been discharged, connect the instrument to the AC
adapter and recharge the battery.
Your operating requirements will determine the method that you use to store
Explorer. The following sections list Explorer availability and the preferred
method of storage.
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