User guide

Safety recommendations

 Employ suitable connecting tubing.

 Make sure that the tubing is securely attached.

 Avoid sharp bends in the tubing, and maintain a sufficient distance from

surrounding walls.

 Regularly check the tubing for material defects (e.g. for cracks).

 Preventive maintenance: Replace the tubing from time to time.

5.4. 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!

Check the temperature of the bath fluid prior to draining (by switching the unit

on for a short moment, for example).

 Always turn off the unit and disconnect the mains cable from the power source

before cleaning the unit, or before moving the unit.

 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.

 Recommended maximum filling level with water as bath fluid:

30 mm below the tank rim

 Recommended maximum filling level with bath oils:

40 mm below the tank rim

 After filling, immerse the samples in the bath or place the lid on

the bath, in case the opening is not to be used.

 The circulator provides an early warning system for low level that

may be triggered when changing samples in the bath.

2223

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.