Figure 2-16: Heaters Window
7. Allow the GC system temperature to stabilize and the carrier gas lines to become
fully purged with carrier gas, which usually takes at least an hour.
The temperature values for the heaters should indicate that the GC is warming up.
The Status column displays OK.
8. Select Control → Auto Sequence....
For more information about this function, refer to the MON2020 Software for Gas
Chromatographs Reference Manual.
Note
You can also performStep 6 through Step 8 with the local operator interface (LOI).
Important
A continuous operation without sample gas for a period of four to eight hours (or
overnight) is recommended, during which no changes should be made to the
settings described in Step 1 through Step 7.
2.5.4
Purge calibration gas lines
Prerequisites
Purging calibration gas lines requires power and a personal computer (PC) connected to
the gas chromatograph (GC).
Procedure
1. Ensure that the carrier gas lines have been fully purged and that the sample vent
plugs have been removed.
2. Close the calibration gas bottle valve.
3. Fully open the block valve associated with the calibration gas feed.
Refer to the MON2020 Software for Gas Chromatographs Reference Manual for
instructions on selecting streams.
Quick Start Guide Installation and start-up
00825-0100-3770 July 2020
Rosemount 700XA 49
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