6
• Use the unit only in specified environmental conditions (→ 8 Technical data)�
In case of special operating conditions please contact the manufacturer�
• Use only as described below (→ 3 Functions and features)�
2.1 General requirements on the safety-related functions
The device complies with the functional and organisational requirements of
EN ISO 13849-1 Performance Level "e" and EN 62061 SIL "3"�
To maintain Safety Integrity Level (SIL) "3" requirements the two input
sensors should not be of the exact same type and independent of each
other�
Common cause failures between input sensors must be excluded by
observing an appropriate cable installation (i�e� separate cable paths)�
Input sensors must be mounted separately from each other�
To maintain the category 4 requirements during longer periods of standstill
the machine operator has to ensure that the machine to be monitored is
operated once a day (t < 24 h)�
