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
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2
Pneumatic connections . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2.1
Pressure gauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2.2
Supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4
Operation
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1
Combining positioner and actuator. . . . . . . . . . . . . . . . . . . 12
4.1.1
Determining/reversing the operating direction . . . . . . . . . . . . . 12
4.2
Starting point and input signal (reference variable) . . . . . . . . . . . 14
4.3
Setting the positioner at the valve. . . . . . . . . . . . . . . . . . . . 15
4.3.1
Setting the air delivery (volume restriction Q) and proportional band XP . 15
4.3.2
Setting actuator version “Stem extends” . . . . . . . . . . . . . . . . 16
4.3.3
Setting actuator version “Stem retracts” . . . . . . . . . . . . . . . . . 16
4.4
Exchanging the range spring. . . . . . . . . . . . . . . . . . . . . . 17
5
Converting an electropneumatic into a pneumatic positioner
. . . . . . 18
6
Servicing explosion-protected devices
. . . . . . . . . . . . . . . . . 19
7
Maintenance, calibration and work on equipment
. . . . . . . . . . . 19
8
Accessories and mounting parts
. . . . . . . . . . . . . . . . . . . . 20
9
Dimensions in mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Test certificates
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2
EB 8359-2 EN
Contents
Summary of Contents for 4763
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