Emerson Rosemount Model 500, Retrofit Instructions

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2. Make a single run with calibration gas and see how close the chromatogram is when
compared to the chromatogram with helium. If it is too fast, reduce the carrier
pressure. If it is too slow, increase the carrier pressure.
3. Continue to make single runs and adjust the carrier pressure until it looks close to
what it was with the helium carrier.
4. If necessary, make any required valve timing changes to bring the GC back to full
function.
Use the following guide to help in valve adjustments. The guide is specific to C6+
BTU analysis, backflush to measure, dual column arrangement, but can be used for
any valve timing adjustments required using the appropriate valve and component.
Retrofit Instructions Installation
SK-07781 September 2019
Rosemount Model 500 Helium to Hydrogen Gas Conversion Kit 17