Retsch DM 400 - Manual (Page 19)

Safety instructions and use
19
2.8.2 Protection against restarting
The device switches off in the event of a power failure during opera-
tion.
 The mill comes to a halt within seconds!
 Sample material container can only be opened with the emergency
release (k) inside the device! To do this the housing cover (14)
must be removed as follows (also see chapter
“Positioning” )
DANGER!
Pull the plug out and secure the device to prevent
accidental restarting!
 Open the housing cover (14) by releasing the quick acting
screws placed on either side.
 After releasing the quick acting screws, pull the housing cover
(14) back by a few centimetres. Then lift the housing cover up
and out.
 The emergency release (k) inside the device is then visible.
 To release the sample material container, pull the emergency
release (k) backwards until the locking bolt (9) on the sample
material container (10) is released.
Considerable force is required to release it.
 The emergency release can then be engaged again and the
housing cover closed. The sample material container is pulled in
when grinding next starts.
NOTICE!
Grinding chamber cannot be opened when the grinding
chamber interlock is closed or when switched off.
The disc mill does not start up by itself when supply voltage returns.
 The mill has protection against restarting.
 The motor is started again by pressing the start button (e), and the
mill begins operation.