48
ZTKS0164 / Z31949 / 06
Troubleshooting
Table continued
Indicator Possible reason Solution Performed by
Shim current can
not be set correctly.
The control cable is
not connected
correctly to the
current lead or to
the power supply.
Connect the control cable
correctly to the current lead
and to the power supply.
Bruker Service
The switch „Main
Coil/OFF/Shim
Coil“ is in the wrong
position.
Change the switch position. Bruker Service
Shims do not affect
the NMR signal.
Shim heater
current is not
correct. The shim
switches are not
opened.
Set the shim heater current
to the specified value
(See Energizing Assign-
ment and Currents on
page 76).
Bruker Service
Magnet system
does not reach
specification.
Magnetic material
inside RT bore
tube.
Carefully clean the RT bore
tube.
Bruker Service
Large ferromag-
netic parts near the
magnet system.
1. As much as possible,
keep all ferromagnetic
parts away from the
magnet system.
2. Repeat shimming.
Bruker Service
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