Hardware Installation and Maintenance Manual 4–1
4 - SAMPLE CONDITIONING SYSTEM
About the SCS
SS500e/SS2000e/SS3000e systems is typically ordered with an integral
Sample Conditioning System (SCS). Each SCS has been specifically designed
to deliver a sample stream to the analyzer that is representative of the process
stream at the time of sampling. To ensure the integrity of the sample stream
and its analysis, care must be taken to install and operate the SCS properly.
Therefore, any personnel intending to operate or service the analyzer and SCS
should have a thorough understanding of the process application and the
design of the analyzer and SCS.
Most problems experienced with sample systems tend to result from operating
the system differently than intended. In some cases, the actual process
conditions may be different than originally specified (e.g., flow rates, presence
of contaminants, particulates, or condensables that may only exist under upset
conditions). By understanding the application and the design of the system,
most issues can be avoided altogether or easily diagnosed and corrected to
ensure successful normal operation.
For SS500e/SS2000e/SS3000e Gas Analyzer systems, Natural Gas refers to
low pressure gas typically consisting of a mixture of methane (CH
4
) and
heavier hydrocarbons. A typical Natural Gas composition is listed in Table A–6
on page A–16.
Personnel should have a thorough understanding of the operation
of the analyzer and the procedures presented here before
operating the sample conditioning system (SCS).
The process sample at the sample tap may be at a high pressure.
A pressure reducing regulator is located at the sample tap to
reduce the sample pressure and allow operation of the sample
conditioning system at a low pressure. Use extreme caution when
operating the sample probe isolation valve and field pressure
reducing regulator.
The SS500e/SS2000e/SS3000e Gas Analyzer system has been
calibrated specifically for the type of background stream listed in
the Calibration Certificate. Significant deviations from the
specified stream composition may result in erroneous readings. If
your stream composition differs significantly from the composition
listed, your system may have undergone custom calibration.
Refer to “Service Contact” on page B-23 to connect with
Technical Service.
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