Activity Danger area Authorised personnel
Transport Within a 3 m radius of the machine. Installation personnel for transport
preparation.
No personnel during transport.
Beneath the lifted machine. No personnel!
Installation Within the machine.
Within 1 m radius of the machine and its sup‐
ply cables.
Installation personnel
Operation Within a 1 m radius of the machine. Operating personnel
Maintenance Within the machine.
Within a 1 m radius of the machine.
Maintenance personnel
Tab. 41 Danger Areas
3.6 Safety devices
Various safety devices ensure safe working with the machine.
➤ Do not change, bypass or disable safety devices.
➤ Regularly check safety devices for their correct function.
➤ Do not remove or obliterate labels and notices.
➤ Ensure that labels and notices are clearly legible.
Further information More information on safety devices is contained in chapter 4, section 4.2.1.
3.7 Service life of safety functions
Pursuant to ISO 13849-1:2008, Category and Performance Level (PL) of the machine's safety
functions have been analysed and assessed:
Safety function Category Performance Level
Safety shut-down due to excessive airend discharge
temperature
2 c
EMERGENCY STOP device 1 c
Tab. 42 Category and Performance Level
The safety-relevant components of the safety functions are designed for a working life of 20 years.
The working life starts with the commissioning, and is not extended by times during which the ma‐
chine was not in use.
The following components are affected:
■ Resistance thermometer (Pt100 sensor for measuring the compression discharge temperature)
■ EMERGENCY STOP control device
■ Mains contactor
1. The components of the safety functions must be replaced by KAESER SERVICE after a work‐
ing life of 20 years.
2. Have the KAESER SERVICE check the reliability of the safety functions.
3 Safety and Responsibility
3.6 Safety devices
901824 12 E
Operating Manual Screw Compressor
ASK
25
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