Regulator Pressure
Tank pressure should be at least 200 psi above regulator pressure. Pressures less than 200 psig indicate the tank is low on gas. Analyses are terminated automatically if gas is depleted. For a high pressure sample chamber configuration, set regulator pressure 20 psi above cycle and fill pressure. |
Set Regulator Pressure with the Software
The Purge fill and Cycle fill pressures are specified in Analysis Conditions. Set the regulator pressure at the higher of the two, plus 2.0 psig. For example; if the Purge fill pressure is set to 19.500 psig (134.445 kPag) and the Cycle fill pressure as 19.000 psig (131.000 kPag), set the regulator pressure at 21.500 psig (148.237 kPag).
- Go to Unit [n] > Enable Manual Control. Ensure a checkmark displays to the left of the menu item. If the analyzer schematic does not display, go to Unit [n] > Show Instrument Schematic.
- On the schematic, right click the Expansion and Vent valves and select Open for both. Then open the Fill valve.
- Adjust the regulator pressure control knob until the Purge fill or Cycle fill pressure, whichever is higher, is shown on the regulator display. Tank pressure should be at least 200 psi above regulator pressure.
- On the schematic, close the Fill valve, then increase the regulator pressure by 2.0 psig (13.8 kPag).
- Allow the pressure in the pycnometer to drop below 2.0 psig, then close the Expansion and Vent valves.
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