Samson 4765, Монтаж и эксплуатация

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Contents
1 Design and principle of operation . . . . . . . . . . . . . . . . . . . . 6
2 Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Attachment to valves with cast yokes . . . . . . . . . . . . . . . . . . . 8
2.2 Attachment to valves with rod-type yokes . . . . . . . . . . . . . . . . 9
2.3 Cover of the positioner housing . . . . . . . . . . . . . . . . . . . . . 9
3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Pneumatic connections . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.1 Pressure gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.2 Supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Combining positioner and actuator. . . . . . . . . . . . . . . . . . . 11
4.1.1 Determining/reversing the operating direction . . . . . . . . . . . . . 11
4.2 Starting point and input signal (reference variable) . . . . . . . . . . . 12
4.3 Setting the positioner at the valve. . . . . . . . . . . . . . . . . . . . 14
4.3.1 Setting the air delivery (volume restriction Q) and proportional band XP . 14
4.3.2 Setting actuator version “Stem extends” . . . . . . . . . . . . . . . . 15
4.3.3 Setting actuator version “Stem retracts” . . . . . . . . . . . . . . . . . 15
4.4 Exchanging the range spring. . . . . . . . . . . . . . . . . . . . . . 16
5 Converting a pneumatic positioner . . . . . . . . . . . . . . . . . . . 17
6 Accessories, mounting parts and conversion kits . . . . . . . . . . . . 19
7 Dimensions in mm . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2
EB 8359-1 EN
Contents