Siemens GC..M.. Manual de instalación descargar pdf (Pagina 31)

Analyzer Connections

Before You Begin

Ensure that the Utility Gas Supply and Sample System are installed in accordance with the Utility Gas

Supply Requirements on page

23 and the Sample System Installation requirements on page 26.

Reference the Analyzer Connections below.

Input/Output Lines

If your system uses optional peripheral or control devices, additional wiring is required. Siemens

recommends the wire specifications shown in the Application Drawings Package, Cable Specifications

sheet. For CE Conformance Requirements, see page

17.

CAUTION External connections to inputs / outputs must be powered from a limited source of

supply.

WARNING All vent lines and oven exhaust should be vented outside the shelter. The vents

should be connected to a location where the pressure is atmospheric. Connection of oven or

analyzer vents to a variable pressure source such as a flare header should not be done as

chromatographic performance will be severely affected. Backpressure on the oven vent could

cause the T-rating of the instrument to be exceeded, which might become an ignition source.

Refer to the comments on Hazardous gases on page 3.

Analyzer Connections

Refer to Application Drawing Package, Block Diagram Utility Connections sheet for analyzer

requirements.

 Remove the plugs from the air supply lines. Purge the lines, and then turn off the air supply.

Connect the air lines to the ⅜” (9.53 mm) stainless tubing at the analyzer ports labeled "AIR IN"

and "VALVE AIR," if this option is used.

 Remove the plug from the carrier line. Purge the line, and then turn off the carrier supply.

Connect the carrier line to the ¼” (6.35 mm) tubing at the analyzer port labeled "CARRIER IN."

 For an analyzer with a detector that uses a carrier gas other than hydrogen, connect the

hydrogen line (after purging and turning off the supply) to the ¼” (6.35 mm) tubing at the

analyzer port labeled "HYDROGEN."

WARNING To prevent dangerous conditions to life, always shut off the flow of gas utilities when

air is not present to reduce consumption and the possibility of flammable gas in the oven and or

sample system.

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Siemens GC..M.. Manual de instalación Pagina 31