December 2020
Installation, Operation and Maintenance Manual
MAN 606 Rev. 5
Operational Tests and Inspections
27
Section 4: Operational Tests and Inspections
Section 4: Operational Tests and Inspections
NOTICE
To ensure the guaranteed SIL grade, according to IEC 61508, the functionality of actuator
must be checked with regular intervals of time, as described in the Safety Manual.