1 Safety considerations
Thermo Scientific
8
50108226_02.2007
CAUTION
Do not place hot stirring vessels on top of the magnetic stirrer (2).
Maximum temperature: +56°C (except MICRO: max. +100°C).
CAUTION
TELEMODUL 20 C / 40 C:
If you selected the shake mode (vertical mixing):
Select the minimum speed setting and then increase it slowly.
Depending on the magnetic stirring bar used, you may be able to
perform vertical stirring only at lower speeds.
CAUTION
In case of repair, the equipment must only be opened by an authorized
service agent.
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.
INFORMATION
In the case of circular and triangular magnetic stirring bars, the length
must not exceed 50 mm. The length of the magnetic stirring bars
should not exceed 80 % of the vessel diameter.
Do not use cylindrical stirring bars with a center ring, or elliptical
stirring bars with a round cross-section.
INFORMATION
Some magnetic stirring bars (especially triangular bars) may have a
critical resonance frequency at lower rotation speeds. This may cause
the magnetic stirring bar to wander away from the turning center and
carry out periodic oscillations. Avoid this rotation speed setting when
the problem occurs. Quickly travel through this problem range when
adjusting the rotation speed.
