Emerson Rosemount 370XA, System Reference Manual

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370XA Gas Chromatograph System Reference Manual
APRIL 2014 7P00370-H01
3 - 27
2,2 Dimethyl butane is the lightest C6+ component and should be
added to the n-Hexane concentration to be entered as the C6+
calibration concentration.
The following image shows the calibration gas connector (1).
Regulate the calibration gas from bottle pressure to 15 PSI (100 kPa)
using a two-stage bottle regulator with stainless steel diaphragms.
Use a dual-stage regulator to ensure the outlet pressure will not
change with changes in the bottle pressure. Use stainless steel
diaphragms to avoid contamination. Use
⅛ -inch stainless steel tubing
that is clean and free of grease to connect from the calibration gas
bottle regulator to the calibration gas inlet connection on the 370XA
sample conditioning system (1). Before making the final connection to
the SCS, blow through the lines for 30 seconds to remove any
contamination such as water or metal shavings from cutting the tube.
WARNING
Do not allow the calibration gas pressure to rise above 30 PSI (200 kPa) because
doing so may damage the analyzer and cause an unsafe condition.