10 | NGC8200 AND PGC1000 USER MANUAL | 2101510MNAH
—
1.Product description
1.1 Overview
The ABB Natural Gas Chromatograph (NGC) and Process Gas Chromatograph (PGC) continually
analyze natural gas or process gas streams on-site, determine composition and calorific value, and
store the analysis information.
1.2 System components
This compact device requires minimal installation time and is configured and calibrated at the factory.
A typical installation has the following components:
Analyzer: a single analyzer supports a single or multiple streams (up to 4)
Sample probe: captures the gas sample from the pipeline
Sample conditioning module(s): prepares the sample before it enters the analyzer
Carrier gas: assists the flow of the gas sample
Calibration gas: gas blend with detectable components to determine baseline analysis
Tubing: gas lines to deliver and vent gas to and from the analyzer.
Figure 1-1 shows the analyzer in a typical single stream pipeline installation. This scenario includes a
sample probe, an optional sample conditioning module, and carrier and calibration gas. Lines for the
entry of the gas sample, carrier gas, and calibration gas are installed into the analyzer’s feedthrough
inlets. The sample probe captures the gas sample which is fed to the sample conditioning module for
processing before it enters the analyzer. Carrier gas assists the gas sample flow through the device.
Figure 1-1: Typical single stream installation
Figure 1-2 shows the analyzer in a multiple stream pipeline installation. Note that this illustration
shows the analyzer mounted on the first pipeline. It could be mounted on the middle pipe run. The
mounting location of the analyzer depends on the distance to each of the sample probes. Consider
tubing length requirements to determine appropriate mounting location in a multi-stream system.
To Next Page
Loading...
