Fluid Considerations; Approved Fluids - Thermo Scientific EK45 Mode D'emploi

Fluid Considerations

Approved Fluids

Thermo Scientific
Only use the approved fluids listed below. Never use corrosive or
flammable fluids with this cooler.
Handle and dispose all liquids in accordance with the fluid
manufacturers specification and/or the MSDS for the fluid used.
Thermo Scientific takes no responsibility for damages caused by the
selection of an unsuitable fluid.
Unsuitable bath fluids are fluids which:
• are very highly viscous (much higher than 30 mPas at the respective
working temperature) or
• have corrosive characteristics or
For fluid selection consider application requirements, operating
temperature range, material compatibility, safety concerns, and
environmental issues.
-50°C to 40°C — Synth 60 Synthetic heat transfer liquids are hygroscopic
and require frequent changing.
-70°C to 40°C — SIL 100 This liquid has very long term stability. Due to
the high viscosity at low temperatures we recommend using a stirrer.
-10°C to 40°C — 50/50 Water with Laboratory Grade Ethylene Glycol
Below 5°C water has to be mixed with a glycol. The amount of glycol
added should cover a temperature range 5°C lower than the operating
temperature of the particular application. This will prevent the water/
glycol from gelling (freezing) near the evaporating coil.
50% ethylene glycol is the maximum recommendation. Excess glycol
deteriorates the temperature accuracy due to its high viscosity.
Thermo Scientific heat transfer fluids are supplied with an EC Safety Data
Sheet.
Ensure, when selecting the heat transfer fluid, that no toxic gases
can be generated. Inflammable gases can build up over the fluid
during usage.
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Section 3 Installation
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3-3