Operating Manual
-Release of toxic or combustible gases.
Warning!
When in an emergency, disconnect the main power plug.
Gradually increase the speed.
Reduce the speed if:
- The medium splashes out of the vessel because the speed is too high
- The appliance is not running smoothly
- The container moves on the base plate.
Caution! Only process and heat up any media that has a flash point higher than the adjusted safe temperature limit
that has been set 550
℃
(WH220-HT).
The safe temperature limit must always be set to at least 25
℃
lower than the fire point of the media used.
Beware of hazards due to:
- Flammable materials
- Combustible media with a low boiling temperature
- Glass breakage
- Incorrect container size
- Overfilling of media
- Unsafe condition of container.
The base plate can heat up due to the action of the drive magnets at high motor speeds, even if the Hot Plate/Stirrer
is not operational.
Process pathogenic materials only in closed vessels under a suitable extractor hood.
Only process media that will not react dangerously to the extra energy produced through processing. This also
applies to any extra energy produced in other ways, e.g. through light irradiation.
Please observe the operating instructions for any accessories used.
Ensure that the external temperature sensor (PT 100) is inserted in the media to a depth of at least 30 mm.
The PT 100 external temperature sensor must always be inserted in the media when connected.
Safe operation is only guaranteed with the accessories described in the “Accessories” chapter.
Accessories must be securely attached to the device and cannot come off by themselves. The center of gravity of the
assembly must lie within the surface on which it is set up.
When using PTFE-coated magnetic bars, the following has to be noted: Chemical reactions of PTFE occur in contact
with molten or solute alkali metals and alkaline earth metals, as well as with fine powders of metals in groups 2 and
3 of the periodic system at temperatures above 300-400
℃
Only elementary fluorine, chloro trifluoride and alkali
metals attack it; halogenated hydrocarbons have a reversible swelling effect.
Warning
！
Warning referring to a particular group of people. Example: People with pacemakers or ICDs
(Implanted Coronar Defibrillator)
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