Bruker CryoProbe User Manual

52 (107) BRUKER CryoProbe User Manual
Standard procedures
Power-down 4.16
0
The CryoProbe System may be shut down after the indicators W
ARM and UNPLUG
light up and the warm-up terminates. A shut-down does not have a drawback in
terms of equilibration times or performance etc. However, the power consumption
and the aging of a ‘warm’ CryoPlatform are small since most devices have been
switched off automatically.
r.13 Loosen the four outer screws in the Mounting Hardware support plate
all the way down.
r.14 Screw down the pusher screw in the center and lower the probe by a
~10 mm.
r.15 WARNING: For lifting the heavy CryoProbe out of the magnet, two
people are needed!
Support the CryoProbe’s center with a hand and push it back into the
magnet. Do not push from below its front because the resulting lever
could break the fragile joint between CryoProbe body and tube. Take
out the support plate while pressing the two little handles below its
bottom.
r.16 Let the CryoProbe slowly slide out of the magnet - it weights about
12 kg! Keep its body in sliding contact with the two guiding rails.
Make sure not to put any leverage or strain on the CryoProbe. When
leaving the shim system, hold the CryoProbe top gently with one hand
to avoid hitting anything.
r.17 CAUTION: Never carry a CryoProbe at its tube, hold it at its body only.
Cover the sample cavity with the Protection Cap to prevent water con-
densation, dust contamination, and intrusion of foreign objects. Put the
CryoProbe into its flight case for safe storage in a dry and clean place.
r.18 Immediately close the magnet bottom or insert another probe to avoid
intrusion of dust or magnetic particles.
r.19 Switch O
N the air suspension of the magnet.
Table 4.12. Power-down
step action
d.1 If the CryoProbe is still in the magnet: terminate any NMR experiment,
eject the sample, and warm-up (see "Warm-up" on page 49
).
d.2 Switch O
FF the CryoCooling Unit at its front.
d.3 Close the He steel-cylinder main valve but do not change the He Regu
lator.

Bruker CryoProbe Specifications

General

Brand	Bruker
Model	CryoProbe
Category	Laboratory Equipment
Language	English