Retsch RM 200 - Manual (Page 26)

11/6/2012 26  Retsch GmbH 0002
Fig.18
In the case of definite overloading the red LED lights
up additionally and thus signals that the machine will
soon be switched off. This switch-off takes place
when overloading for 90 secs is measured within a
short period.
The machine is also switched off if it comes to a
standstill for 10 seconds through blockage.
Do not charge the materials in batches.
The mortar and pestle can become blocked, so that
the motor is switched off by the controller to protect
it from burning out.
Do not push material through the opening under the
cover I with your fingers.
Fingers can be squeezed.
Do not introduce any objects through the openings I
+ J. The mortar, pestle and scraper can become
damaged and there is a possible danger of injury.
Crushing, mixing and milling materials of grain size
> 3 mm
Fig. 19
Close the RM200 and switch on.
Precrushing: Fig.14
• Loosen the rotary grip for adjusting the pestle G
down to scale setting “0”
The pressure of the pestle on the mortar is now
minimum.
• Start the milling operation.
• Add the material to be milled slowly through the
charging opening I
Fine milling: Fig.14
• Increase the pestle pretension again by turning the
rotary grip G clockwise.
N I