PGC5007
PGC5007 Operating Instructions 2 Description
6 OI/PGC5007-EN, Rev C
• A packed column then separates the components and passes them into the flame photometric detector (FPD).
The FPD then measures total sulfur as SO
2
across the range of high ppm to low ppm.
The liquid sample valve is externally mounted on the right side of the oven compartment and extends through the isothermal
oven directly into the fuel sulfur furnace housing, allowing direct injection. It is actuated by a solenoid valve located in the
electronics housing. The liquid sample valve captures a specific volume of liquid sample below its bubble point, injects it into a
temperature controlled (vaporizing) chamber of the sample valve, which sends the vaporized sample into the furnace.
Using air as the carrier, the furnace oxidizes the sample into carbon dioxide, sulfur dioxide and water, and passes them through
the column to the detector for measurement of the total sulfur, as sulfur dioxide (SO
2
).
2.3 Vapor version
The vapor version has a vapor input to the analysis, and does not require a liquid sample valve. A total sulfur analysis cycle
takes about six minutes to complete, depending on the application, and consists of the following:
• “Sweep gas” transports sample out of the vaporizing chamber.
• Air transports the sample into the furnace, where it oxidizes.
• A packed column then separates the components and passes them into the flame photometric detector (FPD).
• The FPD then measures total sulfur as SO
2
across the range of high ppm to low ppm.
Using air as the carrier, the furnace oxidizes the sample into carbon dioxide, sulfur dioxide and water, and passes them through
the column to the detector for measurement of the total sulfur, as sulfur dioxide (SO
2
).
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