Preparations
22
3.4. Filling / draining
2223
Filling
Take care that no liquid enters the interior of the circulator.
• Recommended maximum filling level with water as bath
fluid: 20 mm below the tank rim
• Recommended maximum filling level with bath oils:
30 mm below the tank rim
i After filling, immerse the samples in the bath or place the
lid on the bath, in case the opening is not to be used.
i The circulator provides an early warning system for low
level (description – please refer to page 30) that may be
triggered when changing samples in the bath.
Draining
• Turn off the circulator and cooling machine.
• Hold the venting grid, pull out and remove.
• Slide a short piece of tube onto the drain port (23) and
hold it into a pail.
• Unscrew the drain tap (22) and empty the unit
completely.
• Tighten the drain tap.
Notice:
Pay attention to the thermal expansion of bath oil during heating to avoid
overflowing of the liquid.
Exercise caution when emptying hot bath fluids!
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.
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