Thermo Scientific Sarasota SG901, Руководство пользователя

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Product Overview
Operation
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Sarasota SG901 User Guide Thermo Fisher Scientific
The basic system is ideal for applications in which the sample stream is
already conditioned for other instruments. The analyzer is used in
conjunction with an existing gas conditioning system that provides a clean,
dry sample at a pressure below 4 bar A (58 psi A). This system consists of a
small area dry particle filter, density meter assembly (with integral PT100
temperature element), pressure transmitter, and flow control valve. All
components are interconnected by 1/4-inch (6 mm) stainless steel tubing
and are housed in a weatherproof cabinet.
Refer to drawings
SG91-6002 and SG91-6005 in the drawing appendix.
The dry gas system is ideal for applications where the gas is always above its
dew point, but the sample is not filtered and is above 4.5 bar A. It is similar
to the basic system, but it offers a complete package solution to many
applications. The small area dry particle filter is replaced by a larger area
filter capable of handling unfiltered product. An inlet pressure regulator,
safety vent, calibration point, rotameter, and isolation valves are also
included.
Refer to drawing
SG91-6001 and SG91-6004 in the drawing appendix.
The wet gas system is similar to the dry gas system, but it allows for the
measurement of gases with significant moisture content. In addition to all
of the dry gas system components, a coalescing filter with auto drain and
isolation valve is fitted. Note that the wet gas system is designed to protect
the system from occasional upsets when condensate may appear in the
stream. If condensate is always in the stream other methods should be used
to ensure the stream is above its dew point.
Refer to drawings SG91-6000 and SG91-6003 in the drawing appendix.
The operation described here is for an instrument fitted with optional
components.
The gas sample passes through a high pressure isolating valve, pressure
regulator, filter assembly, and isolating valve. Both isolating valves are used
during maintenance activities.
Downstream of the isolation valve, immediately before the density meter,
the gas pressure is measured by a precision pressure transmitter. The gas
then flows through the density meter assembly, the rotameter, and the flow
control valve.
A calibration tee, fitted to the inlet pipe of the density meter assembly,
allows for tapping to the calibration valve. The calibration tee facilitates
purging and accurate calibration of the pressure transmitter and SG system.
Basic System
Dry Gas System
Wet Gas System
Operation