9 Troubleshooting
Thermo Scientific
26
50108226_02.2007
9 Troubleshooting
Rotation of the magnetic stirring bar is always irregular:
It is unavoidable that magnetic stirring bars will age with time, for example through
sterilization, use at excessive temperatures, or mechanical stress (such as when
you drop it). This may adversely affect the magnetic properties of the stirring bar.
CAUTION
Do not allow AlNiCo5 type magnetic stirring bars to remain in an
alternating magnetic field if they cannot rotate freely. Do not subject the
magnetic stirring bar to a strong inverse magnetic field. This may result
in destruction of the magnetic stirring bar.
Remove and replace the magnetic stirring bar with a new one.
Or:
Use the KOMET series of super-strong magnetic stirring bars offered by
Thermo Scientific (see chapter 4.3). They are made from high-performance
Samarium-Cobalt magnets. Any risk of demagnetisation by external magnetic
fields is completely eliminated.
TELEMODUL only: The rotation speed control button (6) slips:
Tighten screw on rotation speed control button (6).
