Model SMM 770 Scanning Magnetic Microscope System
TRISTAN TECHNOLOGIES --Page
60
Figure 6-8:
MS770 mu-metal shield engineering drawings.
The Mu metal shield is sensitive to mechanical shock and bending. The high nickel content material
is very soft and must be handled with care. This is especially true when lifting of and removing the
top cylinder for instrument setup and service. Normal sample set-up access is available through the
inspection door and LN
2
can be added to the dewar through the access port in the top. Lifting of the
top cylinder should be avoided as much as much as possible to reduce risk of damage.
The door should be opened and closed slowly to avoid bending the hinges of damaging the twist
lock fasteners.
One note about opening and closing the dual-layer door. When closing the door, grasp the black
door handle and unlatch the bottom latch first.this helps take the weight of the doors off the hinge.
When opening the latches, OK to start at the top while supporting the door by grasping the door
handle
In the event miss-handling or accident causes the interior magnetic shielding is degraded, contact
Tristan for instructions on degaussing the shield.
Shielding Tested –May 2005
50Hz testing with APS 520A Fluxgate Magnetometer and SR770 Spectrum Analyzer.
