2.5.2 Plugged lines, columns, and valves
If the lines, columns, or valves are plugged, check the gas flow at valve ports.
For a reference, use the flow diagram in the drawing package that shipped with your gas
chromatograph (GC), and remember these points about flow diagrams:
• Port-to-port flow paths are indicated by solid or dashed lines on the valve symbol in the
drawing.
• A dashed line indicates flow direction when the valve is On, i.e., energized.
• A solid line indicates flow direction when the valve is Off, i.e., not energized.
2.5.3 Purge carrier gas lines
Prerequisites
Purging carrier and calibration gas lines requires power and a personal computer (PC)
connected to the gas chromatograph (GC).
Procedure
1. Ensure that the vent line plugs have been removed and the vent lines are open.
2. Ensure that the carrier gas bottle valve is open.
3. Set the GC side of the carrier gas to 115 psig (792.9 kPa).
4. Turn on the GC and the PC.
5. Start MON2020 and connect to the GC.
NOTICE
Consult the MON2020 Software for Gas Chromatographs Reference Manual for
information about connecting to a GC.
6. Select Hardware → Heaters....
The Heaters window displays.
Installation and start-up Quick Start Guide
July 2020 00825-0100-3770
48 Emerson.com/Rosemount
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