Samson 3730-4, Mounting And Operating Instructions

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Contents Page
1 Design and principle of operation
. . . . . . . . . . . . . . . . . . . . 9
1.1 Additional equipment . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.2 Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.3 Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2 Attachment to the control valve – Mounting parts and accessories
. . . 14
2.1 Direct attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.1.1 Type 3277-5 Actuator . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.1.2 Type 3277 Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.2 Attachment according to IEC 60534-6 . . . . . . . . . . . . . . . . . 24
2.3 Attachment according to VDI/VDE 3847 . . . . . . . . . . . . . . . . 26
2.4 Attachment to Type 3510 Micro-flow Valve. . . . . . . . . . . . . . . 32
2.5 Attachment to rotary actuators . . . . . . . . . . . . . . . . . . . . . 34
2.5.1 Heavy-duty version . . . . . . . . . . . . . . . . . . . . . . . . . . 36
2.6 Reversing amplifier for double-acting actuators . . . . . . . . . . . . . 38
2.6.1 Reversing amplifier (1079-1118 or 1079-1119) . . . . . . . . . . . . 38
2.7 Attaching an external position sensor. . . . . . . . . . . . . . . . . . 40
2.7.1 Mounting the position sensor with direct attachment. . . . . . . . . . . 40
2.7.2 Mounting the position sensor with attachment according to IEC 60534-6 42
2.7.3 Mounting the position sensor to Type 3510 Micro-flow Valve . . . . . . 43
2.7.4 Mounting the position sensor to rotary actuators . . . . . . . . . . . . 44
2.8 Attaching positioners with stainless steel housings . . . . . . . . . . . . 46
2.9 Air purging function for single-acting actuators . . . . . . . . . . . . . 46
3 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
3.1 Pneumatic connections . . . . . . . . . . . . . . . . . . . . . . . . . 48
3.1.1 Signal pressure gauges . . . . . . . . . . . . . . . . . . . . . . . . 48
3.1.2 Supply pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
3.2 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . 50
3.2.1 Establishing communication . . . . . . . . . . . . . . . . . . . . . . 52
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.1 Operator controls and readings . . . . . . . . . . . . . . . . . . . . 54
4.2 Enabling and selecting parameters . . . . . . . . . . . . . . . . . . 56
4.3 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.3.1 Automatic and manual operating modes . . . . . . . . . . . . . . . . 57
4.3.2 SAFE – Fail-safe position. . . . . . . . . . . . . . . . . . . . . . . . 58
5 Start-up and settings . . . . . . . . . . . . . . . . . . . . . . . . . 58
5.1 Defining the valve closed position . . . . . . . . . . . . . . . . . . . 59
5.2 Setting the volume restriction Q . . . . . . . . . . . . . . . . . . . . . . 59
EB 8384-4 EN
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