Changing the Steam Tubing
Caution: some parts inside the device
will get hot and can burn you. Wait for the
device to cool down before opening it.
Danger of electric shock! Make sure that
no liquids get into the apparatus housing
or come in contact with the electrical wires
and connections. Unplug the mains plug
before opening the appliance.
If the distiller‘s steam delivery rate gets poorer (less
than100 ml distillate in 5 minutes at 80% heating power)
it might be because the steam tubing is worn out.
Introduction of steam into the sample vessel is control-
led by squeeze valves that pinch the steam hose and
release it again. Eventually the steam hose may lose its
elasticity; then it must be replaced.
Switch the device off and pull the mains plug.
Wait for the device to cool down.
Open the upper maintenance door.
Inside the device you will notice four intransparent hose
lines that go through two squeeze valves. One of them
is just a short piece of hose that only serves to absorb
the force of the squeeze valve.
The squeeze valves act by squeezing one hose and
releasing the other one. In home position, the frontside
hose is free. If the black button is pressed the frontside
hose is squeezed and the rearside one becomes free.
Steam
generator
Equilibration
vessel
To the
distiller
Over-pressure
steam outlet
First push the front-side hose out of
the valve...
... then press the black button down
and push the rear-side hose out
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