Samson 3767 - Default Chapter; Table of Contents

Contents
EB8355-2EN 3
1 Generalsafetyinstructions.............................................................................5
2 Designandprincipleofoperation..................................................................6
2.1 Versions and article code ................................................................................9
2.2 Technical data .............................................................................................10
2.3 Additional equipment ...................................................................................11
2.4 Summary of explosion protection approvals ...................................................12
3 Mountingoncontrolvalves..........................................................................14
3.1 DirectattachmenttoType3277Actuator .......................................................14
3.2 AttachmentaccordingtoIEC60534-6 ........................................................... 21
3.2.1 Mounting sequence ......................................................................................22
3.2.2 Initial adjustment of travel .............................................................................22
3.3 Attachment to rotary actuators ......................................................................25
3.3.1 Mounting the lever with feeler roll ..................................................................26
3.3.2 Mounting the intermediate piece ...................................................................26
3.3.3 Basic setting of the cam disk .........................................................................28
3.3.4 Reversingamplierfordouble-actingactuators ..............................................32
4 Connections................................................................................................34
4.1 Pneumatic connections..................................................................................34
4.1.1 Pressure gauges ...........................................................................................34
4.1.2 Supply pressure ...........................................................................................34
4.2 Electrical connections ...................................................................................36
4.2.1 Switchingamplier ......................................................................................37
5 Operation...................................................................................................38
5.1 Tuningthepositionermountedontothecontrolvalve .......................................38
5.1.1 AdjustingtheproportionalbandXpandairdeliveryQ ..................................39
5.1.2 Settingsforactuatorwith“actuatorstemextends”fail-safeaction ..................... 40
5.1.3 Settingsforactuatorwith“actuatorstemretracts”fail-safeaction .....................40
5.2 Changingtheoperatingdirection ..................................................................41
5.3 Adjustingthelimitcontacts ...........................................................................42
5.4 Adjustingthepositiontransmitter...................................................................44