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No operation can be made when the magnet is being filled with LHe.
- A time to ramp up/down the magnet should be planned in advance, since it takes at least 1.5 hours.
- You are expected to know what should happen at each step and confirm that it happened.
- You should search for any indication of quench during the operations, such as error messages on the magnet PS, sudden changes of Tank B, Coil T, Coil B, the magnet pressure, etc.
- You can use this chart preset: https://e906-gat1.fnal.gov/data-summary/e1039/target-par-preset/magnet_ramp.php
To Ramp Up
- Confirm that the shim PS is powered ON (if you can go in the hall).
- Press "To Zero" to confirm that
- Press the Toggle button of the main switch heater. It turns on both the main and shim switch heaters.
- When you use the PS front panel, you press additionally the two buttons of the shim switch heaters on CCP, to turn them on.
- Confirm that the two LEDs on the shim PS are ON (if you can go into the hall).
- Set "2 A/m" and "45 A".
- You can use the "Presets" selector, or enter the values into the text boxes.
- Press "To Set" and wait until the current becomes the set point (SP) and "HOLD". It takes 23 minutes.
- Set "1 A/m" and "63 A".
- Press "To Set" and wait until the current becomes the SP and "HOLD". It takes 18 minutes.
- Set "0.5 A/m" and "74.78 A".
- Press "To Set" and wait until the current becomes the SP and "HOLD". It takes 24 minutes.
- Switch to the persistent mode, if you want.
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