Retsch DM 400 - Manual (Page 33)

Working with the disc mill
33
1. To move from the "Check/Setup" menu to the "Parameter" menu,
actuate the arrow buttons (c, d) until the - and + signs which are
visible on the bottom right of the display are highlighted in black!
Then use the buttons + (a) or - (b) to move to the Parameter
menu
2. Close the grinding chamber!
3. In the Parameter menu, press the c button (arrow up) until the
line to enter the gap width is highlighted.
4. Using the +/- buttons on the control panel, increase (+) or de-
crease (-) the gap width!
5. The gap width between the discs adjusts automatically if:
☞the menu item is exited or
☞the grinding process is started using the start button (e).
NOTICE!
Grinding discs wear during grinding. For this reason the
gap width must be checked and possibly adjusted from
time to time. This takes place as described in the
chapter
“Specifying the zero point and the chapter
“Adjusting the gap width ”.
CAUTION!
Risk of crushing between the grinding discs!
5.5 Reverse operation
Reverse operation can be selected in the case of one-sided wear on
grinding discs.