Hook up the He steel-cylinder
CryoProbe Installation BRUKER 41 (93)
Hook up the He steel-cylinder 3.15
0
WARNING: Wear protective goggles. Keep away from directions into which com-
ponents the pressurized system could be expelled in case of an accidental rup-
ture.
u.9 Plug-in the CryoCooling Unit mains.
IMPORTANT: Do not supply the CryoCooling Unit from the spectrome-
ter backpanel because after a power failure an A
VANCE cabinet and its
auxiliary mains outputs remain O
FF.
NOTE: A supply socket must have been installed already during the site
preparations. If no standard IEC 320 C4 socket (= German ‘Schuko’
two-pole plug with dual earthing-contacts, rated 10/16 A 250 V) is avail-
able, it can be replaced by a connector type that complies with the local
regulations for 230 V and 500 W/1500 W average/peak power. Wire
assignments are: brown = line (‘field’), blue = neutral (‘field’), yellow/
green = ground.
u.10 Turn the rotary main switch at the CryoCooling Unit front O
N. The Cryo-
Controller will boot automatically.
NOTE: If its buttons don’t light up after a second, check the automatic
circuit breakers on its backpanel and the 50 mA fuse. Also, there must
be a dummy plug on the R
EMOTE SWITCH socket which short-circuits two
pins.
u.11 Start the CryoTool on the laptop by either clicking its desktop icon or
Start - Bruker - CryoTool - CryoTool. Select COM1, double-click the ‘
F’ in
the word
Firmware with the right (!) mouse button, and click Service to
bring up the full interface and Log to see the system messages.
NOTE: If the CryoTool is started before the CryoCooling Unit is switched
O
N, it will go to off-line mode because it sees no response at its COM1
port.
Table 3.9. Mount the He steel-cylinder
step action
z.1 Check if the He steel-cylinder is of Grade 6.0 (i.e. 99.9999% purity,
‘electronic’ grade). Move it into position and fix it tightly to a wall.
WARNING: The He steel-cylinder and its entire transport path must
always be outside the 0.5 mT range of the magnet.
z.2 Remove the protective cap from the He steel-cylinder.
z.3 Pull the steel cable loop over the pipe from the He Regulator to the He
steel-cylinder (Figure 3.12.
).
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