Retsch SK 300 - Technical Data; Protective Equipment and Degree of Protection; Emissions and Sound Parameters

Technical Data
13
3 Technical Data
3.1 Protective Equipment
− This device is equipped with a door lock. The locking mechanism prevents the device from
being started when in an unsafe state.
− The device can only be started when the door is closed.
− It is only possible to open the door when the device has come to a halt.
3.2 Degree of Protection
− IP41
3.3 Emissions
CAUTION
C.0020
Risk of injury caused by not hearing acoustic signals
Loud grinding noise
− Loud grinding noise may result in not hearing acoustic warning signals,
leading to injuries.
• Take the volume of grinding noise into consideration when
designing the acoustic signals in the working environment.
• Where necessary, use additional visual signals.
CAUTION
C4.0044
Hearing damage
A high sound level may be generated depending on the type of material, the
grinding set used, the grinding frequency set and the duration of the grinding
− Excessive noise in terms of level and duration can cause impairments or
permanent damage to hearing.
• Ensure that suitable noise protection measures are taken, or wear
ear protection.
Sound parameters:
The sound parameters are influenced by the properties of the sample material and the rotation
speed.
Example 1:
Feed material:
Wood pellets (< 5 mm)
Bottom sieve:
0.5 mm
Speed:
2 000 rpm
At these operating conditions, the workplace related equivalent continuous sound level
L
eq
= 79.9 dB(A).