Retsch PM 400 - Manual (Page 19)

08.02.2012 Retsch GmbH
19
Doc. Nr. GB 98.535.9999
Stacking of 50 ml milling cups of type “C”
It is possible to stack two 50 ml milling cups one on top of the
other.
For stacking an adapter is required, which is available as an
accessory.
Stacking procedure
Place milling cup M1 in the milling cup plate
Place the adapter A1 on the lid of M1
Place milling cup M2 in position
Clamp the milling cups as described in the section “Clamping the
milling cups”.
Stacking of milling cups less than 50 ml
It is also possible to stack milling cups with a capacity of less
than 50 ml one on top of the other.
Stacking procedure
Place milling cup M2 on milling cup M1
Clamp milling cups as described in the section “Clamping the
milling cups”.
Handling milling cups of type “C”
X
H
Carrying and gripping
The gripping edges X on the milling cup lid and on the
milling cup facilitate safe handling.
Protection against twisting
All 250 and 500 ml milling cups of type „C“ have a drill hole
in the underside of the cup in which the pin for protection
against twisting is inserted. This drill hole is used only in the
PM400 and is located on the side of the milling cup casing
with labelling.
Heating up of the milling cups
The milling cups can become heated up to 150°C during
milling, depending on the milling time and the filling level.
This temperature change causes a pressure increase in the
interior of the milling cup. When removing the lid please
note that this increased pressure is reduced through the
suddenly escaping air. At the same time particles of the
material being milled can also be carried off.
A vacuum is produced in the interior of milling cups which
have been left to cool, and this can cause difficulty in
opening the milling cup. Therefore milling cups of type „C“
can be prised open by inserting, e.g. a wooden pin H
between the gripping edges of the lid and the milling cup.
Please take the necessary measures, depending on the
dangerous nature of your milling material, so that danger to
persons is excluded.
When removing and opening hot milling cups it is essential
to wear protective gloves.
Danger of burning the hands.
M2
M1
A1
M2
M1