Fritsch PULVERISETTE 7 premium line Manuel d'utilisateur télécharger pdf (Page 28)

NOTICE!

The planetary drive is provided by the main disc via a

toothed belt drive. Constant high loads stress the toothed

belt severely, and may even damage it. High loads may be:

heavy loads, high speeds, high temperatures, long oper-

ating times or combinations of these.

NOTICE!

The grinding duration in the reversing mode must not

exceed 5 minutes. A longer grinding duration in the

reversing mode may damage the PULVERISETTE 7 premium

line.

NOTICE!

If the permissible maximum temperature in the bowl is

exceeded during grinding, then the device must not be

switched off with the lid closed. That could lead to heat

accumulation in the machine, which could cause damage to

the device.

Provide sufficient cooling by letting the mill continue to run

at a speed of 100 rpm for approx. 20 - 30 min. or by shut-

ting off the mill with the lid open.

5.1.1 General information

The grinding bowls have been tested and approved for a static internal

pressure of up to 20 bar.

If the pressure increases gradually, safety elements in the lid prevent the

build-up of an unacceptable overpressure.

Fast and dynamic pressure surges (e.g. an explosion or very fast chemical

reactions, etc.) up to 30 bar will not cause any damage. A higher pres-

sure will result in irreparable damage to the grinding bowl and possibly

also damage the machine.

In such a case, the grinding bowls and the machine are not covered by

the Fritsch guarantee.

To clean the grinding bowl and its components, follow the operating

instructions precisely (

Chapter 8 ‘Cleaning’ on page 101).

Using the device

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Fritsch PULVERISETTE 7 premium line Manuel d'utilisateur Page 28