Bruker CryoProbe - Cool-Down

Contents
CryoProbe User Manual BRUKER 5 (107)
Logfile .......................................................................... 73
7.3 Fuses and reset buttons .................................................... 73
7.4 General failure .................................................................. 74
No mains ...................................................................... 74
Spinning problems ........................................................ 74
Indicator on CryoProbe sticks out .................................. 75
CryoController failure .................................................... 75
Leak in He supply ......................................................... 75
7.5 Cool-down problems .......................................................... 75
C
OOL DOWN command is ignored .................................... 75
Insufficient vacuum ....................................................... 76
He Compressor does not run ........................................ 76
Cool-down doesn’t reach cold state ............................... 77
7.6 Cold operation problems .................................................... 77
C
OLD flashes ................................................................. 77
Emergency warm-up ..................................................... 77
CryoProbe temperature unstable ................................... 78
Condensed water or ice on the CryoProbe .................... 78
Sample temperature problems ...................................... 79
Unusual sounds ............................................................ 79
Mains power interrupt ................................................... 79
VT gas interrupt ............................................................ 81
Cooling water leakage .................................................. 81
He leakage ................................................................... 81
He steel-cylinder empty ................................................ 81
Pneumatic gas pressure too low ................................... 81
‘Shot’ noise ................................................................... 82
7.7 RF problems ...................................................................... 82
Tuning/Matching not OK ................................................ 83
Lock problems .............................................................. 83
Spurious signals ........................................................... 84
7.8 Accidental misoperation ..................................................... 85
8 Bruker contact .................................................... 87
8.1 CryoProbe information ....................................................... 87
8.2 CryoProbe service ............................................................. 87
8.3 Fault report ....................................................................... 87
A Related documents ............................................. 89
B Conversion of metric units ................................. 91
C Frequently asked questions ............................... 93
C.1 System configuration ......................................................... 93
C.2 NMR operation .................................................................. 94
C.3 Basic aspects .................................................................... 95
D Glossary .............................................................. 97