Retsch DM 400 - Manual (Page 31)

Working with the disc mill
31
Menu change
1. To move from the "Parameter" menu to the "Check/Setup" 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 Check/Setup
menu!
2. The menu change from the Check/Setup menu to the Parameter
menu takes place in the same way.
Selecting menu items 1. The menu items within menus are selected using the arrow but-
tons (c, d).
5.3 Specifying the zero point
The zero point is the gap width at which the fixed and the
moving grinding disc rub slightly against each other so
that no gap is present. All other gap widths are actuated
from this zero point.
The zero point must be reset after every time the
grinding discs are changed. Grinding discs can vary in
thickness according to the degree of wear.
1. To move from the "Parameter" menu to the "Check/Setup" 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 Check/Setup
menu!
2. Close the grinding chamber and remove the sample material
container.