Chapter 1 Overview; System Description - Emerson Rosemount 700XA Reference Manual

Reference Manual
2-3-9000-744
1 Overview
1.1

System description

The Rosemount 700XA is a high-speed gas chromatograph (GC) system that is engineered
to meet specific field application requirements based on typical hydrocarbon stream
composition and anticipated concentration of selected components. In its standard
configuration, the analyzer can handle up to eight streams: seven sample streams and one
calibration stream.
The Rosemount 700XA system consists of two major parts: the analyzer assembly and the
electronics assembly. Depending upon the particular GC, there may also be a third,
optional assembly called the sample conditioning system (SCS).
The electronics and hardware are housed in an explosion-proof enclosure that meets the
approval guidelines of various certification agencies for use in hazardous environments.
See the certification tag on the GC for specific details about agency approvals.
1.1.1 Analyzer assembly
The analyzer assembly includes:
• Columns
• Thermal conductivity detectors (TCDs)
• Flame ionization detectors (FIDs)
• Flame photometric detector (FPD)
• Preamplifier
• Preamplifier power supply
• Stream switching valves
• Analytical valves
• Solenoids
Additionally, the gas chromatograph (GC) can be equipped with a liquid sample injection
valve (LSIV) or methanator.
Related information
Upper compartment
1.1.2 Electronics assembly
The electronics assembly includes the electronics and ports necessary for signal
processing, instrument control, data storage, personal computer (PC) interface, and
telecommunications.
The operator uses the electronics assembly and Rosemount MON2020 to control the gas
chromatograph (GC).
Rosemount 700XA
Overview
June 2022
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