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--- turning_magnets_on_off [2015/10/19 13:45]
pereira [Set magnet currents individually]
+++ turning_magnets_on_off [2015/10/19 14:49]
pereira [Turn on the trim coils of the Spectrograph dipoles]
@@ Line 59: / Line 59: @@
       * Ensure that the current in the dipoles are properly matched to the desired values (see section on [[NMR probes#Matching|NMR control]])
+      * Note: The currents in the Trim coils will be set automatically in Barney, once the rigidity in Segment 8 was entered.
 ===== Set magnet currents individually =====
-**NOTE:** The values of currents for the different magnets can be modified individually by clicking the button "details" in the Barney page (see figure above) and selecting the corresponding magnet.
+The values of currents for the different magnets can be modified individually by clicking the button "details" in the Barney page (see upper-right corner in figure above). A list of magnets with their corresponding currents will be displayed as shown in the figure below. To change the current of a given magnet (e.g. I265DS), go to column **Read Amps** and click in the "cell" corresponding to the magnet (see red circle in figure below). A new window will pop-out; enter the new value of the current (e.g. 10 A) and click "Apply".
+{{:wiki:barneys800details.jpg?750|Barney S800 "details" page.}}
 =====  Turn on the trim coils of the Spectrograph dipoles =====
+Note: The following procedure describes how to set the trim-coil currents manually. In principle, it is no longer necessary because Barney sets the currents automatically once the rigidity of segment 8 has been entered.
        * Check the currents in the Spectrograph dipoles by looking at the EPICS channels I265DS and I269DS. This can be done e.g. by clicking the button **Details** in segment 8 of the S800 Barney page (see figure below)

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