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====== Manual Setting of the Magnetic Field ======

===== Driven Mode =====
Advantage: faster field sweeps. Disadvantage: helium consupmtion and noise increased.

  - Superconducting switch HEATER ON. Wait 1 minute. 
  - Select right MID set point with SELECT on keypad.
  - Press MID toggle button.
  - To change set point to a smaller or bigger value, just change MID set point and re-press MID if not already toggled on.
  - Note that you can PAUSE the ramp at any moment with PAUSE.



===== Persistent Mode =====
Advantage: less noise and helium consumption, field more stable. Disadvantage: slower to change field.

  - Superconducting switch HEATER ON. Wait 1 minute. 
  - Energize to desired current/field setpoint (by pre selecting the desired MID setpoint and pressing MID).
  - Wait about 1 minute for current to stabilize.
  - Turn OFF superconducting switch HEATER.
  - Wait 1 minute for switch to become superconducting.
  - Set current to ZERO, slowly first and at lower current the rate can be increased.
  - Now you can possibly switch the magnet power supply off.

To set the field back to ZERO or to a different value:

  - Switch HEATER still OFF.
  - Ramp up the current to previous value and wait till value is reached.
  - Switch's HEATER ON. Wait 1 minute.
  - Change set point by changing MID. Press MID (or ZER0).
  - Wait about 1 minute for current to stabilize.
  - Turn OFF superconducting switch HEATER.
  - Wait 1 minute for switch to become superconducting.
  - Repeat, as written above, the procedure to ramp the current to ZERO and switch off the power supply.