Samson 3222 N Mounting And Operating Instructions

Contents

4.2 Mounting the actuator on thevalve1. Turn the handwheel (Fig. 2) counter-clockwise only after disconnecting theactuator from the power supply to re-tract the actuator stem as far as it willgo.2. Place the actuator on the valve connec-tion or the intermediate insulating pieceand secure with the coupling nut (tight-ening torque 20 Nm).4.3 Electrical connectionDANGER!Risk of electric shock!When installing electric cables, you arerequired to observe the regulationsgoverning electrical power plantinstallation according toDIN VDE 0100 as well as theregulations of your local power supplycompany.Use a suitable power supply whichguarantees that no dangerous voltagesreach the device in normal operationor in case of a fault in the system orany other system parts.Connect the actuator to the electricalnetwork only after the power supply isfirst switched off. Make sure the powercannot be switched on unintentionally!Especially when a 24 V voltage supplyis used, wires with sufficiently largewire cross-sections must be used toguarantee that the permissible voltagetolerances of ±10 % are not exceeded!10 EB 5867 ENCombination with Type 5857 Electric ActuatorFig. 2 · Manual override of Type 5857HandwheelTravelindicatorNOTICEThe handwheel is used to move the actuatorstem. Only operate the handwheel when theactuator is in the de-energized state.In the version with digital positioner, do not op-erate the handwheel while the actuator is in ser-vice (absolute travel adjustment, seeEB 5857 EN), otherwise the feedback signal willbe shifted.