INFICON Explorer Portable Gas Chromatograph - Manual (Page 39)

Introduction
Filling the Internal Cylinder
WARNING
Do not refill the internal cylinder in a hazardous location.
If Explorer is to be used in the field, the internal cylinder will supply the carrier
gas. The internal cylinder will provide approximately 8 hours of operation. The
exact duration will depend on the carrier gas flow rates.
NOTE: To avoid system contamination, do not allow the cylinder to empty completely.
To refill this cylinder, a carrier gas filling station (MX3803 23 for nitrogen
or MX3803 25 for air) is required.
WARNING
Do not attempt to fill the internal cylinder without a carrier gas filling
station.
The carrier gas filling station consists of an adapter fitting with a left or right-handed
thread for cylinder attachment, a three-way valve and a flexible hose. The three-way
valve can be positioned to deliver gas from the cylinder through the flexible hose to
the refill port. Alternatively, the valve can be turned to release carrier gas held in the
hose, after filling. A pressure release valve is provided for safety at the upper end of
the flexible hose. This is set at 1500 psig. A flow restrictor is also incorporated in
line with the hose in order to limit the rate of escape of gas.
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