Fritsch PULVERISETTE 23 Bedienungsanleitung PDF herunterladen (Seite 24)

6.5 Wet grinding (grinding in a suspension)

CAUTION!

Burn hazard!

The grinding bowl can become hot during long grinding

periods. Allow for cooling time after grinding.

Wear safety gloves!

A longer grinding time can be selected for wet grinding in suspension but

beware of excessively high temperatures. High vapour pressure can

develop in the grinding bowl; this escapes with sudden force when the

clamping device is released.

6.6

Clamping the grinding bowls

CAUTION!

Make sure the main switch is switched off when working on

the clamping device so that the device is not inadvertently

switched on!

Before clamping, check the rubber disk (6) in the base of the grinding

bowl holder for any damage.

Place the grinding bowl in the recess in the base of the grinding bowl

holder on the rubber disc (6). Position the clamping bracket vertically

and tighten the knurled screw (1) hand-tight (not too loose and also

without using too much force or pliers). Afterwards, counter with the

knurled (2) nut.

6.7

Grinding duration

Depending on the use (high vibration frequency, heavy balls, long

grinding duration) the grinding duration should be checked for a temper-

ature increase of the grinding bowl by hand several times in five minute

intervals. If the grinding bowl is too hot to touch, implement a cooling

pause. Check that the clamping device is securely in place before

switching on again. At lower vibration frequencies the grinding duration

can be increased. No external time switches can be used due to the

restart protection.

Using the planetary mill

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