!
Setting up and Starting
13
The following rule will help to arrive at ideal operating condi-
tions:
At the beginning of the test, a small amplitude and a small
frequency should be selected. Then the values of these two
parameters may gradually be increased until the contents
of the test vessels are sufficiently shaken and mixed.
The shaking mechanism is also activated when the unit is
switched on. Please observe the notes above regarding the
shaking movement. It should especially be ensured that the
shaking motor is not blocked due to the choice of unsuitable
shaking motor parameters.
If the SWB25 is only to be used as a waterbath, the rubber
connection piece (10) of the platform (11) should be
removed.
9.4
Operational safety
The units are provided with an excess temperature safety
circuit, the cut-off temperature of which has to be set at the
dial button (5). In case of a temperature control malfunction
which could overheat the bath, the heater of the water bath
will be cut off. The malfunction indicator light (4) will then
come on.
9.5
Draining
The unit is drained at the nozzle 13.
1
Place a suitable vessel underneath nozzle.
Bear in mind that the liquid will run out in a slight arc.
2
Turn plug slowly until it becomes disengaged from the
thread.
The liquid will start to run out.
3
Possible residues can be drained by tilting the circula-
tor slightly.
Hot heat transfer liquid should not be drained!
When certain conditions make draining necessary,
please act safety conscious: Wear protective
clothing and protective gloves!
