If the IVC is indicating a large spike as 10x-5 Torr then fix the Turbo-pump controller, then Fix the Turbo-pump controller: see the steps on IVC)

  1. Turn OFF the microwave:
    When you turn OFF the microwave, there will be an alarm from Microwave VI regarding the microwave temperatures. That's because you turned it OFF. So you can ignore that alarm and  Turn off that alarm using the "Warning Sound" toggle button on the microwave VI (see the image below).


  2. Open Gate-Valve-Bypass fully: How to control the Fridge Return flow (GV and GV Bypass)
  3. Close Gate-Valve:  How to control the Fridge Return flow (GV and GV Bypass)
  4. Turn OFF booster pumps: Roots pumps PLC interface
  5. Bring the fridge pressure down to ~100 Torr and set the GV-Bypass PID to 100 Torr
  6. Communicate with the Target Expert (TE) that you are going to Ramp-down the magnet: Follow the steps on Magnet Power Supply Ramping Up - Down Procedure with the TE's monitoring.
  7. Make sure to have the configuration parameters on Idle Mode page
  • No labels