Apeks Supercritical The Duplex™ Operation Manual
22
Revision Date 8/28/2018
2.3.3. Continuous Batch – In this run mode, the system will run both extractors bring extractors
online and offline automatically based on parameters selected by the operator. The operator will
have the option to start with one vessel or both and will control the amount of time each
extractor will be ran. The operator will also have the opportunity, if they choose, to select two
different cycle parameters to be run, which separator bank to use for each set of parameters,
and how long between transitions between separators as well.
2.4. Manual Screen Buttons (Note: Not all buttons are present at certain times)
2.4.1. Service Separator Mode/Leave Service Separator Mode – This button acts like a system
pause so that the operator can get into the active separator that is online. Once activated, the
system will stop flow from the extractors and pump the separator down to 100 psi. At that point it
will put the pump into an idle bypass mode and the user will have the ability to vent the
remaining pressure in the separator and then open the separator. To leave this mode
reassemble separator and press the other button.
2.4.2. Change CO
2
Bottles – This button should be used to switch bottles during a run. Once
activated the bottles will be isolated from the system and the system will not try to add or
recover any CO
2
until this mode is left.
2.4.3. Oil Pressure Lost Reset – This button resets the Oil Pressure Lost alarm that will shut down
the system if it ever loses oil pressure.
2.4.4. Diaphragm Rupture Reset – This button resets the Diaphragm Rupture alarm that will shut
down the system if 5 psi of pressure is detected in the isolation cavity on the diaphragm head.
2.4.5. Evacuate – This button allows the operator to pull a vacuum on the system before a run. If any
pressure over 25 psi is present in the system this button will disappear.
2.4.6. Open Extractor Vessel – This button is used to open the extractor vessel when pressure is in
the extractor. This button will vent the extractor through Valve 4.
2.4.7. Recover CO
2
– This button will recover the system at any time when pressed.
2.4.8. Water Flow Lost Reset – This button resets the Extractor/Separator water flow lost alarm.
2.4.9. Switch Separators – This button will switch between separator banks. Switching separators will
changes phases to whatever phase is associated with that separator. This button will not reset
the separator switchover timer.
2.4.10. Start/Stop Extractor Chiller – These buttons start and stop the Extractor Chiller.
2.4.11. Start/Stop Separator Chiller – These buttons start and stop the Separator Chiller.
2.4.12. Lamp Test – This button will turn on both the red and green light on the light stack to test if they
are working.
2.4.13. Start/Stop Compressor Prime – These buttons will start and stop the diaphragm compressor
for the purpose of priming it (removing any air from the oil). See Appendix B for instructions on
priming the compressor.
2.4.14. Fill Separator Bank 2 Water – This button will allow you to do an initial fill of the water jacket of
separator bank 2. See installation manual for correct operation of valve. Note: valve only
appears in manual mode
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