Bruker NMR 400 89 Ascend DNP User Manual

50
ZTKS0243 / Z31993 / 03
Troubleshooting
Continued from page before
6.2.5 During Operation of the Magnet Stand
In case of doubt contact Bruker Service and refer to the manual of the Magnet Stand.
Continued on next page
Indicator Possible reason Solution By
Magnet system does
not reach
specification.
Magnetic material
inside RT bore tube.
Carefully clean the RT bore
tube.
Bruker Service
Large ferromagnetic
parts near the
magnet system.
1. Keep the maximum pos-
sible distance between
the magnet system and
ferromagnetic parts.
2. Repeat shimming.
Bruker Service
Indicator Possible reason Solution By
The NMR spectrum
shows massive
disturbances.
Pneumatic controller
is in DOWN position.
Switch pneumatic controller to
UP position.
Approved
Customer
Personnel
Magnet system has
direct mechanical
contact with the floor
via accessories or
cables.
Identify and eliminate contact
point. Arrange cables in loose
S- or U-shapes.
Approved
Customer
Personnel
If the problem is still not
solved, contact
Bruker Service.
Approved
Customer
Personnel
Magnet system has
physical contact to
the magnet stand.
Check leveling; adjust if
necessary.
Bruker Service
Piston of the isolator
is not centric or
touches its casing.
Align magnet stand. Bruker Service
T-safety bracket
touches the pillar.
Align magnet stand. Bruker Service
Floor vibrations in
vertical direction.
Replace elastomeric isolators
with air damped isolators.
Bruker Service
Floor vibrations in
horizontal and
vertical direction.
Replace air damped isolators
with air piston isolators.
Bruker Service

Bruker NMR 400 89 Ascend DNP Specifications

General

Brand	Bruker
Model	NMR 400 89 Ascend DNP
Category	Laboratory Equipment
Language	English