JULABO FK31-SL Calibration Baths - Manual (Page 21)

SL
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 are highly viscous
(much higher than recommended at the respective working temperature)
 have a low viscosity and have creep characteristics
 have corrosive characteristics or
 tend to crack.
 No liability for use of other bath fluids!
5.3. Filling / draining
Notice:
 Pay attention to the thermal expansion of bath oil during heating to avoid
overflowing of the liquid.
 Do not drain the bath fluid while it is hot!
Recommendation: Temperature range 5 °C to 40 °C
Check the temperature of the bath fluid prior to draining (by switching the unit on
for a short moment, for example).
 Store and dispose the used bath fluid according to the laws for environmental
protection.
Filling
Take care that no liquid enters the interior of the
circulator.

The recommended filling level is marked with an
angle plate (M) inside the bath.

When the filling level does not exceed the marker
(M) and providing a suitable bath fluid is used for
the specified working temperature range of the unit,
neither low liquid level alarm should be triggered
nor overflowing of the bath fluid should be caused.
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Draining:
 Turn off the unit and disconnect the mains cable
from the power source.
 Hold the venting grid, pull out and remove.
 Slide a short piece of tube onto the drain
connection and hold it into a container.
 Loosen the drain screw a few turns and drain the
unit completely.
 Tighten the drain tap.