Samson Electri Actuator Type 3374 EB 8331-1 EN User Manual
Page 2
Contents
Page
1
Design and principle of operation. . . . . . . . . . . . . . . . . . . . 5
1.1
Additional equipment . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1
Mounting position. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2
Attachment to the valve . . . . . . . . . . . . . . . . . . . . . . . . . 8
3
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . 10
4
Operation and setting . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1
Manual operation of the actuator. . . . . . . . . . . . . . . . . . . . 12
4.2
Setting the additional equipment . . . . . . . . . . . . . . . . . . . . 12
4.2.1
Limit contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2.2
Resistance transmitters . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.3
Setting the digital positioner . . . . . . . . . . . . . . . . . . . . . . 14
5
Retrofitting additional electrical equipment . . . . . . . . . . . . . . 17
5.1
Installing the basic unit with new intermediate plate (index 6) . . . . . . 18
5.1.1
Limit contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.1.2
Resistance transmitters or digital positioner . . . . . . . . . . . . . . . 18
5.2
Limit contacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.3
Resistance transmitters . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.4
Digital positioner . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.4.1
Calibrating the positioner . . . . . . . . . . . . . . . . . . . . . . . 23
5.4.2
Simplest method to calibrate the actuator . . . . . . . . . . . . . . . . 24
6
Dimensions in mm. . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2
EB 8331-1 EN
Contents
Note: Actuators with a CE marking fulfill the requirements of the Directives 94/9/EC and
89/336/EEC.
The Declaration of Conformity is available on request.