Samson 3274 Mounting And Operating Instructions

Also see for 3274: Mounting and operating instructions Mounting and operating instructions Mounting and operating instructions

ContentsEB 8340 EN 31 General safety instructions .............................................................................42 Technical data ...............................................................................................53 Design and principle of operation ..................................................................73.1 Versions ........................................................................................................73.2 Principle of operation .....................................................................................83.3 Accessories ...................................................................................................83.3.1 Positioner ....................................................................................................103.3.2 Position transmitter .......................................................................................103.3.3 Resistance transmitters ..................................................................................103.3.4 Mechanical limit contacts ..............................................................................103.3.5 Priority circuit ..............................................................................................103.3.6 Heating .......................................................................................................104 Installation ..................................................................................................114.1 Mounting position ........................................................................................114.2 Assembling valve and actuator .....................................................................125 Electrical connections ...................................................................................146 Manual operation of actuator ......................................................................186.1 Version with electric override ........................................................................186.2 Version with mechanical override ..................................................................207 Operation ...................................................................................................217.1 Positioners ...................................................................................................217.1.1 SW1: Priority circuit .....................................................................................227.1.2 SW2: Direction of action ..............................................................................227.1.3 SW3/SW4: Position feedback signal .............................................................227.1.4 Calibrating the positioner for direction of action increasing/increasing (>>) or in-creasing/decreasing (<>) .............................................................................237.1.5 Using the positioner as a position transmitter..................................................257.2 Calibrating the position transmitter ................................................................267.3 Adjusting the resistance transmitters ..............................................................277.4 Adjusting the limit contacts ...........................................................................288 Dimensions in mm .......................................................................................298.1 Actuator with mechanical override ................................................................298.2 Actuator with electric override .......................................................................30