54
ZTKS0243 / Z31993 / 03
Troubleshooting
6.2.7 During De-energizing and Warming up
Indicator Possible reason Solution By
The magnet system
quenches during
de-energizing.
The helium level was
too low for
de-energizing.
Refill helium at least to the
minimum allowed level (see
Appendix, Technical Data).
Bruker Service
The Power Supply is
defective.
Replace Power Supply. Bruker Service
The main current is
oscillating.
Replace Power Supply. Bruker Service
The shim current
can not be set
correctly.
The control cable is
not connected
correctly to the
current lead and/or
the Power Supply.
Connect the control cable to
the current lead and to the
Power Supply correctly.
Bruker Service
The switch "Main
Coil/OFF/Shim Coil"
is not on the "Shim
Coil" position.
Switch "Main Coil/OFF/Shim
Coil" on the "Shim Coil"
position.
Bruker Service
High helium flow
after breaking
vacuum.
Remaining
cryogenic agents in
the vessels.
Remove liquid cryogenic
agents.
Bruker Service
Vacuum still remains
after 12 hours.
Vacuum Valve is
closed.
Open the Vacuum Valve.
Block it if necessary.
Bruker Service
RT vessel is wet and
cold.
Cryostat is still cold. Wait until RT vessel is dry and
warm.
Check PT100 temperature
sensors.
Bruker Service
RT bore wet and
cold before
disassembling.
Cryostat is still cold. Wait one more day.
Do not open a cryostat before
the room temperature bore
tube is warm and dry!
Bruker Service
To Next Page
Loading...
Need help?
General
