Samson 4747 Manual de servicio
Translation of original instructions
EB 4747 EN
Edition January 2019
Type4747 Limit Switch
Note on these mounting and operating instructions
These mounting and operating instructions assist you in mounting and operating the device
safely. The instructions are binding for handling SAMSON devices.
ÎFor the safe and proper use of these instructions, read them carefully and keep them for
later reference.
ÎIf you have any questions about these instructions, contact SAMSON‘s After-sales Service
Department (aftersalesser[email protected]).
The mounting and operating instructions for the devices are included in
the scope of delivery. The latest documentation is available on our website
at www.samson.de > Service & Support > Downloads > Documentation.
Denition of signal words
Hazardous situations which, if not avoided,
will result in death or serious injury
Hazardous situations which, if not avoided,
could result in death or serious injury
Property damage message or malfunction
Additional information
Recommended action
DANGER
!
WARNING
!
NOTICE
!
Note
Tip
2 EB 4747 EN
Contents
EB 4747 EN 3
1 Safety instructions and measures ...................................................................5
1.1 Notes on possible severe personal injury .........................................................7
1.2 Notes on possible personal injury ...................................................................8
1.3 Notes on possible property damage................................................................8
2 Markings on the device .................................................................................9
2.1 Nameplate ....................................................................................................9
2.2 Article code.................................................................................................10
3 Design and principle of operation ................................................................12
3.1 Type4747-xxx01InductiveLimitSwitch.........................................................12
3.2 Type4747-xxx1xElectricLimitSwitch............................................................12
3.3 Accessories .................................................................................................14
3.4 Traveltables ................................................................................................15
3.5 Technical data .............................................................................................16
3.6 Summaryofexplosionprotectionapprovals...................................................18
3.7 Dimensions in mm........................................................................................19
4 Measures for preparation............................................................................20
4.1 Unpacking ..................................................................................................20
4.2 Transporting ................................................................................................20
4.3 Storage.......................................................................................................20
5 Mounting ....................................................................................................20
5.1 Mounting position........................................................................................21
5.2 Leverandpinposition ..................................................................................21
5.3 DirectattachmenttoType3277andType3277-5Actuators............................22
5.4 AttachmentaccordingtoIEC60534-6(NAMURrib) ......................................24
5.5 AttachmenttoType3510Micro-owValve ....................................................26
5.6 AttachmentaccordingtoVDI/VDE3845torotaryactuators ...........................28
5.6.1 Lightversion ................................................................................................28
5.6.2 Heavy-duty version ......................................................................................30
Contents
4 EB 4747 EN
6 Electrical connections...................................................................................32
6.1 ElectricalconnectionfortypeofprotectionExd..............................................32
6.2 ElectricalconnectionfortypeofprotectionExia .............................................33
6.3 EquipmentwithtypeofprotectionExt ...........................................................34
6.4 Equipmentforuseinzone2/22 ...................................................................34
6.5 Cableentry .................................................................................................34
6.6 Switchingamplier ......................................................................................35
7 Operation...................................................................................................36
7.1 Adjusting the switching point ........................................................................36
8 Servicing.....................................................................................................37
8.1 Servicingexplosion-protecteddevices............................................................37
8.2 Preparation for return shipment.....................................................................38
9 Malfunctions ...............................................................................................39
9.1 Emergency action ........................................................................................40
10 Decommissioning and removal ....................................................................40
10.1 Decommissioning.........................................................................................40
10.2 Removingthelimitswitch..............................................................................40
10.3 Disposal......................................................................................................40
11 Appendix....................................................................................................41
11.1 After-sales service........................................................................................41
EB 4747 EN 5
Safety instructions and measures
1 Safety instructions and measures
Intended use
TheSAMSONType4747LimitSwitchissuesanelectricsignalwhenthevalvetravelexceeds
or falls below an adjusted limit. The signal is suitable for switching control signals, issuing
visual and audible alarms or for connection to central control or alarm systems. The device is
designedtooperateunderexactlydenedconditions(e.g.temperature).Therefore,operators
must ensure that the limit switch is only used in applications where the operating conditions
correspond to the technical data. In case operators intend to use the limit switch in other
applicationsorconditionsthanspecied,contactSAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the de-
viceforitsintendedpurposeorfordamagecausedbyexternalforcesoranyotherexternal
factors.
ÎRefertothetechnicaldataforlimitsandeldsofapplicationaswellaspossibleuses.
Reasonably foreseeable misuse
TheType4747LimitSwitchisnot suitable for the following applications:
−Useoutsidethelimitsdenedduringsizingandbythetechnicaldata
Furthermore, the following activities do not comply with the intended use:
−Useofnon-originalspareparts
−PerformingmaintenanceactivitiesnotspeciedbySAMSON
Qualications of operating personnel
Thelimitswitchmustbemounted,startedupandservicedbyfullytrainedandqualied
personnel only; the accepted industry codes and practices are to be observed. According to
these mounting and operating instructions, trained personnel is referred to as individuals
whoareabletojudgetheworktheyareassignedtoandrecognizepossibledangersdueto
theirspecializedtraining,theirknowledgeandexperienceaswellastheirknowledgeofthe
applicable standards.
Explosion-protectedversionsofthisdevicemustbeoperatedonlybypersonnelwhohasun-
dergonespecialtrainingorinstructionsorwhoisauthorizedtoworkonexplosion-protected
devicesinhazardousareas.
6 EB 4747 EN
Safety instructions and measures
Personal protective equipment
No personal protective equipment is required for the direct handling of the limit switch. Work
on the control valve may be necessary when mounting or removing the device.
ÎObservetherequirementsforpersonalprotectiveequipmentspeciedinthevalvedocu-
mentation.
ÎCheckwiththeplantoperatorfordetailsonfurtherprotectiveequipment.
Revisions and other modications
Revisions,conversionsorothermodicationsoftheproductarenotauthorizedbySAMSON.
Theyareperformedattheuser'sownriskandmayleadtosafetyhazards,forexample.
Furthermore, the product may no longer meet the requirements for its intended use.
Warning against residual hazards
To avoid personal injury or property damage, plant operators and operating personnel must
preventhazardsthatcouldbecausedinthecontrolvalvebytheprocessmedium,the
operating pressure, the signal pressure or by moving parts by taking appropriate
precautions.Theymustobserveallhazardstatements,warningandcautionnotesinthese
mounting and operating instructions, especially for installation, start-up and service work.
If inadmissible motions or forces are produced in the pneumatic actuator as a result of the
supply pressure, it must be restricted using a suitable supply pressure reducing station.
Responsibilities of the operator
The operator is responsible for proper operation and compliance with the safety regulations.
Operators are obliged to provide these mounting and operating instructions to the operating
personnel and to instruct them in proper operation. Furthermore, the operator must ensure
thatoperatingpersonnelorthirdpersonsarenotexposedtoanydanger.
Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions as
wellasthespeciedhazardstatements,warningandcautionnotes.Furthermore,theoperat-
ing personnel must be familiar with the applicable health, safety and accident prevention
regulations and comply with them.
Referenced standards and regulations
DeviceswithaCEmarkingfullltherequirementsoftheDirectives2014/30/EUand
2014/34/EUforexplosion-protectedapplications.ThisEUdeclarationofconformityisin-
cludedintheAppendixoftheseinstructions.
EB 4747 EN 7
Safety instructions and measures
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:
−The mounting and operating instructions of the components on which the limit switch is
mounted (valve, actuator, valve accessories etc.).
1.1 Notes on possible severe personal injury
DANGER
!
Risk of fatal injury due to the formation of an explosive atmosphere.
Incorrectinstallation,operationormaintenanceofthelimitswitchinpotentiallyexplo-
sive atmospheres may lead to ignition of the atmosphere and cause death, even with a
harmless supply voltage.
ÎFormountingandelectricalinstallationinhazardousareas,observetheexplosion
protection approvals as well as the relevant electrotechnical regulations and the ac-
cidentpreventionregulationsthatapplyinthecountryofuse.EN60079-14applies
in Europe.
ÎDo not connect the supply voltage before mounting is completed.
ÎInstallation, operation or maintenance of the limit switch must only performed by
personnelwithqualicationsaccordingtoClause4.5ofIEC60079-14whohasun-
dergonespecialtrainingorinstructionsorwhoisauthorizedtoworkonexplo-
sion-protecteddevicesinhazardousareas.
ÎDonotopendeviceswithameproofenclosureswhentheelectricalpowersupplyis
connected.
Risk of fatal injury as a result of electrostatic discharge at the device.
An electric spark generated by electrostatic discharge may lead to ignition of a poten-
tiallyexplosiveatmosphereandcausedeath.
ÎInhazardousareas(withtypeofprotectionExt),mountthedeviceinsuchaway
that electrostatic charging cannot take place.
8 EB 4747 EN
Safety instructions and measures
1.2 Notes on possible personal injury
WARNING
!
Crush hazard arising from moving parts on the valve and actuator.
The control valves contain moving parts (actuator and plug stems), which can injure
handsorngersifinsertedintothevalve.
ÎDo not touch any moving valve parts while the control valve is in operation.
ÎWhile performing any mounting or installation on the valve or actuator, disconnect
and lock the pneumatic air supply as well as the control signal.
1.3 Notes on possible property damage
NOTICE
!
An incorrect electrical power supply will damage the limit switch.
TheType4747LimitSwitchisdesignedtooperateunderexactlydenedelectricalcon-
ditions.
ÎOnly connect the limit switch to a suitable power supply after mounting is complet-
ed.
Risk of malfunction due to incorrect mounting parts/accessories or incorrect assign-
ment of lever and pin position.
ÎOnlyusemountingparts/accessorieslistedinthesemountingandoperatinginstruc-
tions to mount the limit switch.
ÎObserve the type of attachment.
ÎObserve the assignment between lever and pin position.
EB 4747 EN 9
Markings on the device
2 Markings on the device
2.1 Nameplate
SAMSON AG D-60314 Frankfurt Made in Germany
Var.-ID Serial no.
Model 4747-
SAMSON 4747
Limit switch, inductive
* See EU Type Examination Certificate for further values
WARNING-POTENTIAL ELECTROSTATIC CHARGING HAZARD*
3
2
4 5
1
6
SAMSON AG D-60314 Frankfurt Made in Germany
Var.-ID Serial no.
Model 4747-
SAMSON 4747
Reed magnetic switch
* See EU Type Examination Certificate for further values
WARNING-POTENTIAL ELECTROSTATIC CHARGING HAZARD*
3
2
4 5
1
1Typeofprotectionforexplosion-protecteddevices
2Temperaturelimitsinthetestcerticatesfortheexplosion-protecteddevices
3 Model no.
4 CongurationID
5 Serial number
6CEmarking
10 EB 4747 EN
Safety instructions and measures
2.2 Article code
Limit Switch Type4747 - x x x x x x x x x x 0xxxxx
Type of protection
Without 000
ATEX II2GExiaIICT6Gb
II2DExtbIIICT85°CDbIP66 110
EAC 1ExiaIICT6/T5/T4Gb
ExtbIIICT85°CDb 113
ATEX II2GExdIICT6/T5/T4
II2DExtDA21IP66T80°C 210
IECEx ExdIICT6,T5,rep.T4
ExtDA21IP66T80°C 211
NEPSI ExdIICT4~T6Gb
DIPA21Ta,T4~T6 212
EAC 1ExdIICT6/T5/T4GbX
ExtbIIICT80°CDbX 213
STCC II2GExdIICT6
II2DExtbIIICT80°C 216
FM AExdIICT6 230
ATEX II3GExnAcIIT6Gc
II3DExtcIIICT85°CDcIP66 810
EAC 2ExnAIICT6/T5/T4Gc
ExtcIIICT85°CDc 813
Limit contact
InductiveproximitysensorNCB2-V3-N0
(–25to+80°C) 0 1
InductiveproximitysensorNBB3-V3-Z5
(–25to+70°C) 1 0
Microswitches with silver contacts
(–40to+80°C) 1 1
Microswitches with gold contacts
(–40to+80°C) 1 2
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