Samson 3374 - Page 6

1-2 EB 8331-3 EN
Safety instructions and measures
Personal protective equipment
No personal protective equipment is required for the direct handling of the electric actuator.
Work on the control valve may be necessary when mounting or removing the device.
Î Observetherequirementsforpersonalprotectiveequipmentspeciedinthevalvedocu-
mentation.
Î Check with the plant operator for details on further protective equipment.
Revisions and other modications
Revisions,conversionsorothermodications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
Upon supply voltage failure, the Type3374 Electric Actuator
1)
causes the valve to move to a
certainfail-safeposition.Thefail-safeactionofSAMSONactuatorsisspeciedontheactua-
tor nameplate.
1)
Type3374-21/-26/-31/-36
Warning against residual hazards
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operat-
ing pressure, the signal pressure or by moving parts by taking appropriate precautions. Plant
operatorsandoperatingpersonnelmustobserveallhazardstatements,warningsandcau-
tion notes in these mounting and operating instructions, especially 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 to the operating per-
sonnel and to instruct them in proper operation. Furthermore, operators must ensure that op-
erating personnel or third parties are not exposed to any danger.