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1 Introduction
This section describes the contents and purpose of the 700XA Gas Chromatograph System
Reference Manual, a description of the Model 700XA system, an explanation of the theory
of operation, and a glossary of chromatograph terminology.
Use this section to get acquainted with the basic engineering of the 700XA.
1.1 Description of manual
The 700XA Gas Chromatograph System Reference Manual (P/N 3-9000-744) consists of
installation, operations, maintenance, and troubleshooting procedures.
1.2 System description
The 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 the selected components. In its standard configuration,
the 700XA gas chromatograph can handle up to eight streams: seven for sample streams
and one calibration stream.
The 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 700XA’s 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.
1.2.1 Analyzer assembly
The analyzer assembly includes the columns, TCDs/FIDs, a preamplifier, a preamplifier
power supply, stream switching valves, analytical valves and solenoids. Additionally, the
700XA can be equipped with a liquid sample injection valve or a methanator.
For more information, see Section 2.1.2.
1.2.2 Electronics assembly
The electronics assembly includes the electronics and ports necessary for signal
processing, instrument control, data storage, personal computer (PC) interface, and
telecommunications. This assembly allows the user to use MON2020 to control the GC.
Refer to Section 2.2.2 for more details.
Introduction
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Introduction
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