1 Safety considerations
Thermo Scientific
8
50108213_02.2007
Avoid extreme temperature changes.
The power supply unit (9) must not be run in humid rooms, or
set up in water splash zones.
CAUTION
Do not use chlorine-based cleaning agents, cleaning wool,
cleaning agents containing metal parts or ammonium when
cleaning the equipment.
Such agents can damage the surface of the equipment.
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
If you are not using the magnetic stirrer (5) for a longer period
of time, disconnect it from mains supply. Only then the stirrer
is completely switched off.
INFORMATION
The length of the magnetic stirring bars must not exceed 80 %
of the vessel diameter. In the case of circular and triangular
magnetic stirring bars, the length must not exceed 50 mm. 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.
