Samson 4749 Service manual

Translation of original instructions
EB 4749 EN
Firmware version 1.00.02
Edition August 2020
Type4749 Position Transmitter

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. The images shown in
these instructions are for illustration purposes only. The actual product may vary.
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
([e-mail]).
Documents relating to the device, such as the mounting and operating
instructions, are available on our website at www.samsongroup.com >
Service & Support > Downloads > Documentation.
Definition 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
EB 4749 EN

Contents
EB 4749 EN
1 Safety instructions and measures ................................................................1-1
1.1 Notes on possible severe personal injury ......................................................1-3
1.2 Notes on possible personal injury ................................................................1-4
1.3 Notes on possible property damage.............................................................1-5
2 Markings on the device ..............................................................................2-1
2.1 Nameplate .................................................................................................2-1
2.2 Article code................................................................................................2-2
3 Design and principle of operation ...............................................................3-1
3.1 Device overview and operating controls........................................................3-1
3.2 Technical data ............................................................................................3-2
3.3 Dimensions in mm.......................................................................................3-5
4 Shipment and on-site transport ...................................................................4-1
4.1 Accepting the delivered goods .....................................................................4-1
4.2 Removing the packaging from the position transmitter....................................4-1
4.3 Transporting the position transmitter .............................................................4-1
4.4 Storing the position transmitter.....................................................................4-1
5 Installation.................................................................................................5-1
5.1 Installation conditions..................................................................................5-1
5.2 Preparation for installation...........................................................................5-2
5.2.1 Lever and pin position .................................................................................5-2
5.3 DirectattachmenttoType3277andType3277-5Actuators...........................5-4
5.4 AttachmentaccordingtoIEC60534-6(NAMURrib) .....................................5-6
5.5 AttachmenttoType3510Micro-owValve ...................................................5-8
5.6 AttachmenttorotaryactuatorsaccordingtoVDI/VDE3845 ........................5-10
5.6.1 Lightversion .............................................................................................5-10
5.6.2 Heavy-dutyversion ...................................................................................5-12
5.7 Establishingelectricalconnections ..............................................................5-14
5.8 Mounting accessories ................................................................................5-17
6 Operation..................................................................................................6-1
6.1 Operatorkeysandmenustructure................................................................6-1
6.2 Lockingtheconguration.............................................................................6-3
7 Start-up .....................................................................................................7-1
7.1 Determiningthemountingsituation ..............................................................7-2
7.2 Determiningthepositionat4mA.................................................................7-2
7.2.1 Determiningthepositionat20mA...............................................................7-3
7.2.2 Issuingatestcurrent....................................................................................7-4

Contents
EB 4749 EN
8 Operation..................................................................................................8-1
8.1 Resetting the position transmitter to default settings ........................................8-2
9 Malfunctions ..............................................................................................9-1
9.1 Troubleshooting ..........................................................................................9-1
9.2 Emergency action .......................................................................................9-1
10 Servicing..................................................................................................10-1
10.1 Periodic inspection and testing of the position transmitter .............................10-2
11 Decommissioning .....................................................................................11-1
12 Removal ..................................................................................................12-1
13 Repairs ....................................................................................................13-1
13.1 Servicing explosion-protected devices.........................................................13-1
13.2 Returning devices to SAMSON ..................................................................13-2
14 Disposal...................................................................................................14-1
15 Certicates ..............................................................................................15-1
16 Annex......................................................................................................16-1
16.1 After-salesservice.....................................................................................16-1

EB 4749 EN 1-1
Safety instructions and measures
1 Safety instructions and measures
Intended use
TheSAMSONType4749PositionTransmitterismountedontocontrolvalvesandconverts
thelinearorrotarymotionofacontrolvalveintoa4to20mAstandardizedsignal.Thede-
viceisdesignedtooperateunderexactlydenedconditions(e.g.temperature).Therefore,
operators must ensure that the position transmitter is only used in applications where the op-
erating conditions correspond to the technical data. In case operators intend to use the posi-
tiontransmitterinotherapplicationsorconditionsthanspecied,contactSAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the
device for its intended purpose or for damage caused by external forces or any other
external factors.
ÎRefertothetechnicaldataforlimitsandeldsofapplicationaswellaspossibleuses.
Reasonably foreseeable misuse
TheType4749PositionTransmitterisnot suitable for the following applications:
−Useoutsidethelimitsdenedduringsizingandbythetechnicaldata
Furthermore, the following activities do not comply with the intended use:
−Useofnon-originalspareparts
−Performing maintenance activities not described in these instructions
Qualications of operating personnel
The position transmitter must be mounted, started up and serviced by fully trained and
qualiedpersonnelonly;theacceptedindustrycodesandpracticesmustbeobserved.
According to these mounting and operating instructions, trained personnel refers to
individualswhoareabletojudgetheworktheyareassignedtoandrecognizepossible
hazardsduetotheirspecializedtraining,theirknowledgeandexperienceaswellastheir
knowledge of the applicable standards.
Explosion-protected versions of this device must be operated only by personnel who has
undergonespecialtrainingorinstructionsorwhoisauthorizedtoworkonexplosion-
protecteddevicesinhazardousareas.

1-2 EB 4749 EN
Safety instructions and measures
Personal protective equipment
No personal protective equipment is required for the direct handling of the position transmit-
ter. Work on the control valve may be necessary when mounting or removing the device.
ÎObservetherequirementsforpersonalprotectiveequipmentspeciedinthevalvedocu-
mentation.
ÎCheck with the plant operator for details on further protective equipment.
Revisions and other modications
Revisions,conversionsorothermodicationsoftheproductarenotauthorizedbySAMSON.
Theyareperformedattheuser'sownriskandmayleadtosafetyhazards,forexample.
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
preventhazardsthatcouldbecausedinthecontrolvalvebytheprocessmedium,theoperat-
ing pressure, the signal pressure or by moving parts by taking appropriate precautions. Plant
operatorsandoperatingpersonnelmustobserveallhazardstatements,warningandcaution
notes in these 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
that operating personnel or third parties are not exposed to any danger.
Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions as
wellasthespeciedhazardstatements,warningandcautionnotes.Furthermore,theoperat-
ing personnel must be familiar with the applicable health, safety and accident prevention
regulations and comply with them.
Referenced standards and regulations
DeviceswithaCEmarkingfullltherequirementsoftheDirectivesRoHS2011/65/EUas
wellas2014/30/EUand,dependingontheversion,2014/34/EUforexplosion-protected
applications.ThisEUdeclarationofconformityisincludedintheannexofthisdocument.

EB 4749 EN 1-3
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 position trans-
mitter is mounted (valve, actuator, valve accessories etc.).
1.1 Notes on possible severe personal injury
DANGER
!
Risk of fatal injury due to the ignition of an explosive atmosphere.
Incorrect installation, operation or maintenance of the position transmitter in potentially
explosive atmospheres may lead to ignition of the atmosphere and ultimately to death,
even with a harmless supply voltage.
ÎFormountingandelectricalinstallationinhazardousareas,observetheexplosion
protection approvals as well as the relevant electrotechnical regulations and the
accidentpreventionregulationsthatapplyinthecountryofuse.EN60079-14
applies in Europe.
ÎDo not connect the electrical supply before mounting is completed.
ÎInstallation, operation or maintenance of the position transmitter must only be
performedbypersonnelwithqualicationsaccordingtoClause4.5ofIEC60079-14
whohasundergonespecialtrainingorinstructionsorwhoisauthorizedtoworkon
explosion-protecteddevicesinhazardousareas.
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 potential-
ly explosive atmosphere and cause death.
ÎInhazardousareas,mountthedeviceinsuchawaythatelectrostaticchargingcannot
take place.
Loss of the explosion protection due to damage to the cover's thread and/or the
connecting thread.
ÎDonotopendeviceswithameproofenclosureswhiletheyareenergized.

1-4 EB 4749 EN
Safety instructions and measures
1.2 Notes on possible personal injury
WARNING
!
Crush hazard arising from moving parts on the valve and actuator.
Control valves contain moving parts (actuator and plug stem), which can injure hands or
ngersifinsertedintothevalve.
ÎDo not touch any moving valve parts while the control valve is in operation.
ÎBefore performing any mounting or installation work on the position transmitter, put the
control valve out of operation by disconnecting and locking the supply and control
signal.
Incorrect electrical connection will render the explosion protection unsafe.
ÎAdhere to the terminal assignment.
ÎDo not undo the enameled screws.
ÎDonotexceedthemaximumpermissiblevaluesspeciedintheECtypeexamination
certicateswheninterconnectingintrinsicallysafeelectricalequipment(UiorU0, lior I0,
Pior P0, Cior C0and Lior L0).
The use of unapproved cable glands will render the explosion protection unsafe.
ÎFordeviceswithameproofenclosure,onlyusecableglandsandscrewplugswhich
areapprovedfortypeofprotectionExdandthecertiedtemperaturerange.
Opening the position transmitter in potentially explosive dust atmospheres will render
the explosion protection unsafe.
ÎDo not open the enclosure cover of the position transmitter in potentially explosive dust
atmospheres.

EB 4749 EN 1-5
Safety instructions and measures
1.3 Notes on possible property damage
NOTICE
!
Risk of malfunction due to incorrect mounting parts/accessories or incorrect assignment
of lever and pin position.
ÎOnlyusemountingparts/accessorieslistedinthesemountingandoperatinginstruc-
tions to mount the position transmitter.
ÎObserve the type of attachment.
ÎObserve the assignment between lever and pin position.
Risk of malfunction due to calibration not being performed.
Thezeroandspancalibrationallowthepositiontransmittertobeadaptedtothemounting
situation.Thepositiontransmitterisonlyreadyforoperationafterthezeroandspanhave
been calibrated.
ÎPerform calibration before initial start-up.
ÎCalibrate the position transmitter after changing the mounting position.
Risk of position transmitter damage due to incorrect grounding of the electric welding
equipment.
ÎDo not ground electric welding equipment near to the position transmitter.

1-6 EB 4749 EN

EB 4749 EN 2-1
Markings on the device
2 Markings on the device
2.1 Nameplate
See technical data for ambient temperature
Analog position transmitterAnalog position transmitter
SAMSON AG D-60314 Frankfurt
0044
Made in Germany
Model 4749-
3
Firmware
1
Hardware
2
6
Var.-ID 4Serial no. 5
SAMSON AG D-60314 Frankfurt Made in Germany
Model 4749-
3
Firmware
1
Hardware
2
Var.-ID 4
Serial no. 5
7
4749 4749
WARNING-POTENTIAL ELECTROSTATIC CHARGING HAZARD*
* See EU Type Examination Certificate for further values
1) Thersttwoguresoftheserialnumberinreverseorderindicatetheyearof
manufacture(example:serialnumber71xxxxxÎYear of manufacture =
2017).
1 Firmware version
2Hardwareversion
3 Model number
4CongurationID
5 Serial number1)
6Type of protection code
6a Checkbox for type of protection
Exi
6b TypeofprotectionExi
6c Checkbox for type of protection
Exd
6d TypeofprotectionExd
7Temperature limits in the test
certicatesfortheexplosion-
protected devices
Explosion-protected version Version without explosion protection
Analog position transmitter
SAMSON AG D-60314 Frankfurt
0044
Made in Germany
Model 4749-
3
Firmware
1
Hardware
2
6b
6d
Var.-ID 4Serial no. 5
7
4749
WARNING-POTENTIAL ELECTROSTATIC CHARGING HAZARD*
* See EU Type Examination Certificate for further values
6a
6c
Types4749-11xand4749-21x
Type4749-18x
All types
Type of protection code for Type4749-18x
ÎBefore mounting the position transmitter, check the box for the type of protection required
fortheambientconditionsonthenameplate(checkbox6afortypeofprotectionExior
checkbox6cfortypeofprotectionExd).

2-2 EB 4749 EN
Markings on the device
2.2 Article code
Position transmitter Type4749- x x x x x x x x x 0 0 xxxx
Version
Analog position transmitter 0
Explosion protection
Without 0 0 0
ATEX II2GExiaIICT6...T4Gb/
II 2 D Ex ia IIIC T85 °C Db 110
IECEx ExiaIICT6...T4Gb/
Ex ia IIIC T85 °C Db 111
ATEX
II2GExiaIICT6...T4GB
II 2 D Ex ia IIIC T85 °C DB
or
II2GExdbIICT6…T4Gb
II 2 D Ex tb IIIC T80 °C Db
180
IECEx
ExiaIICT6…T4Gb
Ex ia IIIC T85 °C Db
or
ExdbIICT6…T4Gb
ExtbIIICT80°CDb
181
ATEX II2GExdbIICT6...T4Gb/
II2DExtbIIICT80°CDb 210
IECEx ExdbIICT6...T4Gb/
ExtbIIICT80°CDb 211
Electrical threaded connection
M20x1.5 0
½NPT 1
Enclosure material
Aluminum (standard) 0
Special applications
Without 0
Additionalcertication
Without 0
Temperature range
Standard 0

EB 4749 EN 2-3
Markings on the device
Position transmitter Type4749- x x x x x x x x x 0 0 xxxx
Hardwareversion
1.00.00 9 9
Firmware version
1.00.02 9 8

2-4 EB 4749 EN

EB 4749 EN 3-1
Design and principle of operation
3 Design and principle of oper-
ation
TheType4749PositionTransmitterconverts
the linear or rotary motion of a control valve
intoanelectric4to20mAstandardized
signal.
The angle of the position transmitter's axis is
measured by the magnetoresistive measuring
system and converted into an electric signal.
Two pushbuttons are used to operate the
device and make device settings. Two LEDs
(red and green) indicate the menu items and
settings.
To operate the position transmitter, a
transmittersupplyvoltageofUB=12to36V
isrequiredforthe4to20mAmeasuring
circuit.
3.1 Device overview and operating controls
3
2
1
–
+–
9
10
6 7
4
8
5
1 Enclosure cover
2 Stop screw
3 Grounding connection (external)
4key
5key
6Red LED
7Green LED
8 Terminal
9 Grounding connection (internal)
10 Shaft locking
Fig.3-1: Operating controls

3-2 EB 4749 EN
Design and principle of operation
3.2 Technical data
Type4749 Position Transmitter
Measuring range
Measurement method Magnetoresistive measuring system
Measured travel for DirectattachmenttoType3277: 3.6to30mm
AttachmentaccordingtoIEC60534-6(NAMUR): 5to300mm
AttachmentaccordingtoVDI/VDE3847: 5to300mm
Attachment to rotary actuators: 24 to 100°
Power supply
Input voltage 12to36VDC
Output 4to20mA·Two-wiredevice,reversepolarityprotection
Residual current ≤3.6mA
Permissible load RBinΩ RB=(UB–12V)/0.020A
Static destruction limit 38VDC,30VAC
Power consumption <0.2W
Measuring accuracy
Reference conditions CalibratedwithU=24VDC,TU=20°C
Zero error <0.1%accordingtoDINEN60770
Hysteresis ≤0.1%accordingtoDINEN60770
Nonlinearity <0.3%accordingtoDINEN60770
Effect of supply voltage on
zeroandspan
<0.05%accordingtoDINEN60770
Effect of ambient tempera-
tureonzeroandspan
<0.1%/10KaccordingtoDINEN60770
Long-term stability <0.1%accordingtoDINEN60770
Start-up time 1200ms
Output rate 1ms

EB 4749 EN 3-3
Design and principle of operation
Environmental conditions and permissible temperatures
PermissibleenvironmentalconditionsaccordingtoEN60721-3
Storage 1K6(relativehumidity≤95%)
Transport 2K4
Operation 4K2or4K3(dependingonthetemperaturerange)
–20to+85°C: All versions
–40to+85°C: With metal cable glands
Observethelimitsinthetestcerticateforexplosion-protectedversions.
Resistance to vibration
Vibrations(sinusoidal) AccordingtoDINEN60068-2-6:
2to9Hz;3.5mmamplitude
10to200Hz;10m/s²acceleration
200to500Hz;15m/s²acceleration
Noise AccordingtoDINEN60068-2-64:
10to200Hz;amplitude1(m/s²)²/Hz
200to2000Hz;amplitude0.3(m/s²)²/Hz
Requirements
EMC ComplyingwithEN61000-6-1,EN61000-6-2,EN61000-6-3,
EN61000-6-4,EN61000-6-7,EN61326andNAMURRecommen-
dationNE21
Degree of protection IP66
Conformity
Electrical connections
Cable glands M20x1.5or½NPT
Terminals Screwterminalsfor0.2to2.5mm²wirecross-section
Explosion protection
ATEX, IECEx See‘Summaryofexplosionprotectionapprovals’onpage3-4.
Materials
Enclosure and cover Die-castaluminumENAC-44300/ENAC-43000accordingto
DINEN1706,chromatedandpowderpaintcoated
Cable glands Polyamide, nickel-plated brass
Other external parts Stainlesssteel1.4301/1.4310+1.4404/1.4409(316L)
Weight 0.7kg

3-4 EB 4749 EN
Design and principle of operation
Summary of explosion protection approvals
Type Certication Type of protection
4749-110 EC type examina-
tioncerticate
Number KIWA18ATEX0031X II2GExiaIICT6...T4Gb/
II2DExiaIIICT85°CDb
Date 2019-01-09
4749-111 IECEx Number IECExKIWA18.0014X ExiaIICT6...T4Gb/
ExiaIIICT85°CDb
Date 2019-01-09
4749-180 EC type examina-
tioncerticate
Number KIWA19ATEX0038X II2GExiaIICT6…T4Gb
II 2 D Ex ia IIIC T85 °C Db
or
II2GExdbIICT6…T4Gb
II 2 D Ex tb IIIC T80 °C Db
Date 2019-10-10
4749-181 IECEx
Number IECExKIWA19.0022X ExiaIICT6…T4Gb
ExiaIIICT85°CDb
or
ExdbIICT6…T4Gb
ExtbIIICT80°CDb
Date 2019-10-10
4749-210 EC type examina-
tioncerticate
Number KIWA18ATEX0036X II2GExdbIICT6...T4Gb/
II2DExtbIIICT80°CDb
Date 2018-11-11
4749-211 IECEx Number IECExKIWA18.0017X ExdbIICT6...T4Gb/
ExtbIIICT80°CDb
Date 2018-11-11

EB 4749 EN 3-5
Design and principle of operation
3.3 Dimensions in mm
94
77
40
99
80
30

3-6 EB 4749 EN