Bruker CryoProbe System User Manual

26 (93) BRUKER CryoProbe Installation
Initial setup
h.2 Check if the shim system and the shim upper part (i.e. the sample lift
tube) are fixed to the magnet top and bottom with red clamps. The
upper clamp must be present at all times and the 3 long vertical screws
in the shim upper part top must be tightly fixed.
Mark the exact position of the shim system at the magnet top with
scratches or a permanent pen.
h.3 Remove the red shim system fixture clamp at the magnet bottom.
NOTE: If an optional ring for cooling/heating the shim system with com-
pressed air is mounted at the magnet bore bottom, it can be left in place
but the four Allen key bolts (M5⌠12) that tie it to the magnet must be
removed.
h.4 NOTE: In rare cases, it may be necessary to rotate the shim system
permanently to resolve conflicts between Mounting Hardware, shim
system, desired CryoProbe orientation, and magnet parts like drop-off
plates. See the CryoProbe System Site Planning Guide for a 1:1 draw-
ing of the Mounting Hardware interface plate (the interface plate is the
part that touches the magnet).
Before rotating the shim system, mark its old position clearly. Release
the upper clamp just a little bit from the shim upper part. Turn the shim
upper part gently into its new position and fix all screws tightly. Take
care not to let it slide into the magnet!
h.5 Check if there are four empty threads in the magnet bore bottom
flange at a diameter of 76 mm.
h.6 NOTE: Sometimes it may be necessary to rotate the shim system
temporarily to access the four threads or screws through the holes in
the shim system bottom plate.
If the shim system needs to be rotated, mark its original position clearly.
Remove the four screws from the upper clamp but keep the clamp
tightly fixed to the shim upper part. Turn the shim upper part gently into
its temporary position.
h.7 Take the CryoProbe support plate out of the Mounting Hardware.
h.8 Remove the clamp part that is integrated in the interface plate.
h.9 Fix the interface plate at two of the open threads at the magnet bore
such that the clamp opening points in the same direction as the Cryo-
Probe front will. Do not tie the screws firmly yet.
NOTE: There are two cases in which four longer non-magnetic Allen
key screws (M5⌠20) must be used instead of M5⌠12:
a) An optional ring for cooling/heating the shim system is present (see
step h.3
): mount the interface plate such that the cooling ring is sand-
wiched between magnet and Mounting Hardware.
b) If screws had to be removed from the magnet bottom flange to pro-
vide four empty threads (see step h.5
).

Bruker CryoProbe System Specifications

General

Brand	Bruker
Model	CryoProbe System
Category	Laboratory Equipment
Language	English