Samson TROVIS 5724-3 Mounting And Operating Instructions page 6

Safety instructions and measures
Personal protective equipment
No personal protective equipment is required for the direct handling of electric actuators.
Work on the control valve may be necessary when mounting or removing the device.
Î Observe the requirements for personal protective equipment specified in the valve docu-
mentation.
Î Check with the plant operator for details on further protective equipment.
Revisions and other modifications
Revisions, conversions or other modifications of the product are not authorized by SAMSON.
They are performed at the user's own risk and may lead to safety hazards, for example. Fur-
thermore, the product may no longer meet the requirements for its intended use.
Safety features
The limit switches switch off the motor in the end positions.
Upon supply voltage failure, the TROVIS 5725-3 Electric Actuator with Process Controller
causes the valve to move to a certain fail-safe position. The direction of the fail-safe action is
specified on the nameplate of SAMSON actuators.
Warning against residual hazards
The electric actuator with process controller has a direct influence on the valve when it is
mounted on the valve. To avoid personal injury or property damage, plant operators and
operating personnel must prevent hazards that could be caused in the control valve by the
process medium, the operating pressure, the signal pressure or by moving parts by taking
appropriate precautions. Plant operators and operating personnel must observe all hazard
statements, warning and caution notes in these mounting and operating instructions, espe-
cially for installation, start-up and service work.
Responsibilities of the operator
Operators are responsible for proper use and compliance with the safety regulations. Opera-
tors are obliged to provide these mounting and operating instructions as well as the refer-
enced documents to the operating personnel and to instruct them in proper operation. Fur-
thermore, operators must ensure that operating personnel or third parties are not exposed to
any danger.
1-2 EB 5724 EN