Leave the metering valve shut for now; you will reopen it later during initial purging
and the analyzer's first calibration.
6. Repeat the procedure with sample gas and stream gas.
Note
Do not use a liquid leak detector, such as Snoop
®
, on the valves or components in
the oven.
Note
Refer to the
Flow Configuration
schematic in the documentation packet that
shipped with the GC for detailed instructions on plugging the flame ionization
detector (FID) and flame photometric detector (FPD) vents.
4.5.2
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
or energized.
•
A solid line indicates flow direction when the valve is
Off
or not energized.
4.5.3
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 (7.93 barg).
4. Turn on the GC and the PC.
5. Start Rosemount MON2020 and connect to the GC.
NOTICE
Rosemount MON2020 Software for Gas Chromatographs Reference
Installation and start-up
Reference Manual
June 2022
2-3-9000-744
96
Emerson.com/Rosemount
Summary of Contents for Rosemount 700XA
Page 1: ...Reference Manual 2 3 9000 744 Rev L June 2022 Rosemount 700XA Gas Chromatograph ...
Page 6: ...TxD TD or Sout Transmit data or signal out 6 ...
Page 30: ...Overview Reference Manual June 2022 2 3 9000 744 30 Emerson com Rosemount ...
Page 100: ...Installation and start up Reference Manual June 2022 2 3 9000 744 100 Emerson com Rosemount ...
Page 182: ...Operation and maintenance Reference Manual June 2022 2 3 9000 744 182 Emerson com Rosemount ...
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