Hoefer RCB20-PLUS - Manual (Page 14)

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3.3 Safety Precautions
Please contact Hoefer before using bath fluids
other than those recommended. Some examples of
unsuitable fluids are liquids which are very highly
viscous (higher than 30 mm
2 /s at the respective
working temperature), liquids with corrosive
characteristics, and liquids that tend to cause cracking.
• The outer cover of the unit will become hot when
water bath temperature is ≥ 50 °C. Use caution when
touching all parts of the unit at this temperature.
• If you are using the RCB20-PLUS for temperature
control of test tubes, Erlenmeyer flasks, or similar
objects placed directly within the circulator, take
careful note of what is contained within these
vessels.
• Before starting to work, obtain information
concerning the substance to be heated or cooled.
Note whether toxic steams or gases arise when
heating, and whether an exhaust is needed when
working. Determine the method for decontamination
should it become necessary.
• Hoefer assumes no liability for use of substances
that are flammable, hazardous to health,
environmentally unsafe, or dangerous in any way.
• There is an excess temperature control for the
RCB20-PLUS hardware that can be adjusted using
a screwdriver, (see Fig 1, page 10).
Caution! Hoefer assumes
no liability for use of bath
fluids other than those
recommended. Ethylene glycol
has a low toxicity. Strictly
observe the safety data and
handling instructions from the
ethylene glycol manufacturer.
Do not use flammable
bath fluids.
Danger of freezing: Do
not use water for working
temperatures under 5 °C.