Bruker NMR 400 89 Ascend DNP, User Manual

Page: 96 / 106

96 ZTKS0243 / Z31993 / 03
Technical Data MS 400‘89 Ascend DNP
Magnetic Center _ _ _´_ _ _´_ _ _´_ _
Refer to Figure A.1, page 72.
Cycling Assignment and Shim Currents
(recommended only for 500 MHz and more)
Magnetic Center Value Unit
Magnet center from bottom flange M1 mm
Magnet center from top flange M2 mm
Table A.17: Magnetic Center
Cycling Assignment and Shim Currents Value Unit
Time between energizing and cycling h
Time between cycling and shimming h
Current rate A/h
Z-Shim current A
Z
2
-Shim current
A
Z
3
-Shim current
A
X–Shim current A
Y–Shim current A
XZ–Shim current A
YZ–Shim current A
XY–Shim current A
X
2
–Y
2
–Shim current
A
Frequency change due to cycling kHz
Date and Signature
Table A.18: Cycling Assignment (recommended only for 500 Mhz and more)