Accidental misoperation
CryoProbe User Manual BRUKER 85 (107)
magnet pillar braces are mounted, the CryoProbe body must fit their gap
(see Figure 4.5.
).
If the problem persists, contact B
RUKER.
Accidental misoperation 7.8
Too much RF power
Check if the probe can still be wobbled.
CAUTION: A CryoProbe must not be tuned or matched when warm.
RF pulsing into a warm CryoProbe
The built-in protection may have handled this, check if the probe can still be wob-
bled.
Cables or bellows not connected during NMR experiment
This case might have been noticed by the CryoController which would then set
disable the CryoProbe System to protect it. Check sample, wobbling, and error
messages.
Sample broken
Eject the sample.
Warm-up and unmount CryoProbe. Clean it (see "Cleaning the sample cavity"
on page 67, remove debris from shim system and spinner stator (remove shim
system only if really necessary; see "Replacing the shim system (optional)" on
page 24). Do not remove the blue spinner stator from the shim system! If in doubt,
call B
RUKER for inspection and repair. Do not attempt to fix any problems at the
CryoProbe yourself.
Dirt inside the sample cavity
See "Cleaning the sample cavity" on page 67
.
Are evacuation and cool-down still possible?
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