Power-on
CryoProbe Installation BRUKER 49 (93)
Power-on 3.19
0
If the CryoProbe System is O
FF or has not been used immediately before, go
through the following steps to make sure that all components are O
N and ready.
CAUTION: Before powering-up a CryoProbe System for the first time, e.g. during
an installation, double-check if the voltages and fuses in the laboratory meet the
requirements given on the backpanels of CryoCooling Unit, He Compressor, and
(optional) water chiller.
j.11 Switch the VT heater power O
N.
Table 3.12. Power-on
step action
o.1 All units of the CryoProbe System must be set up correctly.
o.2 Start the cooling water supply to the He Compressor (water-cooled He
Compressor only).
o.3 The He steel-cylinder main valve must be open and the primary pres-
sure gauge on the He steel-cylinder should read 40-200 bar.
o.4 The secondary pressure gauge should read 22-25 bar, adjust the He
Regulator accordingly.
Initially, the secondary pressure may rise slowly but only during the first
few minutes. Check the pressure after about 20 min.
o.5 At the He Compressor front, D
RIVE must be OFF in the beginning. On
the backside, C
OLDHEAD DRIVE must always be OFF and REMOTE DRIVE
in E
XT position.
CAUTION: If C
OLDHEAD DRIVE and REMOTE DRIVE are in the wrong
positions, the Coldhead inside the CryoCooling Unit can be damaged.
o.6 Switch the He Compressor M
AIN POWER SW at its backside ON, then
D
RIVE at its front ON. The unit will go into stand-by mode. It is started
later by the CryoController.
o.7 Turn O
N the CryoCooling Unit main switch at its front.
The CryoController will initialize the CryoPlatform. After a few moments
the green W
ARM and the white UNPLUG must be on. If ERROR lights up,
try to reset it by pushing
WARM UP and check if all sensor and supply
connections are ok.
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