Risk of injury
Lack of knowledge of the manual
− The manual contains all safety-related information. Disregarding the
manual can therefore lead to injuries.
• Read the manual carefully before operating the device.
Target group:
The MM 400 has been designed for preparing samples in a laboratory environment. laboratory
environment. This manual is therefore directed at persons who work with this device in a
comparable environment and who already have experience with similar equipment.
The MM 400 is a modern, efficient, state-of-the-art product from Retsch GmbH. Its reliability is
ensured when used as intended and with knowledge of this technical documentation.
2.1 Intended use of the device
The MM 400 is designed for crushing, grinding, mixing and homogenising soft, medium-hard,
hard, fibrous, elastic and brittle materials in dry and wet condition up to a particle size of 8 mm.
The device is also suitable for the cryogenic grinding of sample materials.
As a laboratory device, the MM 400 is only to be used for the preparation of samples and not as
a production machine.
The device is designed for stationary operation in a dry and clean working environment.
Operators and operating personnel must have read the operating instructions and be familiar
with the full range of functions of the device.
2.2 Improper use
The MM 400 may only be used as intended.
Any uses other than the described intended use are regarded as improper use.
The MM 400 is not suitable for processing sample materials that can form explosive air
mixtures.
Any form of claims for damage to equipment or personal injury resulting from improper use
and/or the failure to comply with the safety instructions shall be ruled out.
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