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Summary of Contents for Samson 4747
- Page 1 EB 4747 EN Translation of original instructions Type 4747 Limit Switch Edition September 2022...
- Page 2 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.
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Page 3: Table Of Contents
5.4 Attachment according to IEC 60534-6 (NAMUR rib) ........25 5.5 Attachment to Type 3510 Micro-flow Valve ............27 5.6 Attachment according to VDI/VDE 3845 to rotary actuators ......29 5.6.1 Light version ....................29 5.6.2 Heavy-duty version ..................31 Electrical connections ...................33 6.1 Electrical connection for type of protection Ex d ..........33 6.2 Electrical connection for type of protection Ex ia ..........34 6.3 Equipment with type of protection Ex t ............34 6.4 Equipment for use in zone 2/22 ..............35 6.5 Cable entry ....................35 6.6 Switching amplifier ..................35 EB 4747 EN... - Page 4 Contents Servicing.....................36 7.1 Servicing explosion-protected devices ............36 7.2 Preparation for return shipment ..............37 Malfunctions ....................38 Emergency action ..................39 Decommissioning and removal ..............39 Decommissioning ..................39 9.2 Removing the limit switch ................39 Disposal ......................39 Annex......................40 10.1 After-sales service ..................40 EB 4747 EN...
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Page 5: Safety Instructions And Measures
In case operators intend to use the limit switch in ap- plications or conditions other than those specified, contact SAMSON. SAMSON does not assume any liability for damage resulting from the failure to use the de- vice for its intended purpose or for damage caused by external forces or any other external factors. - Page 6 Furthermore, operators must ensure that op- erating 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 specified 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. EB 4747 EN...
- Page 7 − ГОСТ IEC 60079-31-2013 See Annex for declarations of conformity and EAC certificates. 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.). EB 4747 EN...
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Page 8: Notes On Possible Severe Personal Injury
Î Do not open devices with flameproof enclosures while they are energized. 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- tially explosive atmosphere and cause fatal injuries. Î In hazardous areas (with type of protection Ex t), mount the device in such a way that electrostatic charging cannot take place. EB 4747 EN... -
Page 9: Notes On Possible Personal Injury
Risk of malfunction due to incorrect mounting parts/accessories or incorrect assign- ment of lever and pin position. Î Only use mounting parts/accessories listed in these mounting and operating instruc- tions to mount the limit switch. Î Observe the type of attachment. Î Observe the assignment between lever and pin position. EB 4747 EN... -
Page 10: Markings On The Device
WARNING-POTENTIAL ELECTROSTATIC CHARGING HAZARD* * See EU Type Examination Certificate for further values Model 4747- Var.-ID Serial no. SAMSON AG D-60314 Frankfurt Made in Germany SAMSON 4747 Reed magnetic switch WARNING-POTENTIAL ELECTROSTATIC CHARGING HAZARD* * See EU Type Examination Certificate for further values Model 4747- Var.-ID... -
Page 11: Article Code
Markings on the device 2.2 Article code Limit switch Type 4747- x x x x x x x x x x 0 x x x x x Type of protection 0 0 0 Without II 2G Ex ia IIC T6 Gb ATEX II 2D Ex ia IIIC T85°C Db IP66 1 1 0 II 2D Ex tb IIIC T85°C Db IP66 1Ex ia IIC T6/T5/T4 Gb... - Page 12 Markings on the device Limit switch Type 4747- x x x x x x x x x x 0 x x x x x II 3G Ex ic IIC T6 Gc TR CMU II 3G Ex nAc II T6 Gc 8 1 6 1055 II 3D Ex tc IIIC T85 °C Dc IP66 Limit contact Inductive proximity sensor NCB2-V3-N0 (–25 to +80 °C) Microswitches with silver contacts (–40 to +80 °C)
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Page 13: Design And Principle Of Operation
Design and principle of operation 3 Design and principle of oper- 3.2 Type 4747-xxx1x Electric ation Limit Switch The limit switch is equipped with a maximum The limit switch has a maximum of two ad- of two inductive proximity switches or two justable metal cam disks (3) on the shaft (1). electric microswitches. The cam disk (3) activates the electric mi- For most applications the contacts are ad- croswitch over the roller on the switch lever. - Page 14 Design and principle of operation Terminal block Adjustment screw Cam disk or metal tag Shaft Fig. 1: Type 4747 Limit Switch EB 4747 EN...
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Page 15: Accessories
Table 2: Mounting kits Designation Order no. Attachment according to VDI/VDE 3845, level 2, heavy-duty version 1400-9974 Attachment according to VDI/VDE 3845, level 1, light version (AA1 to AA4 size) 1400-7473 Attachment according to VDI/VDE 3845, level 1, heavy-duty version (AA1 to AA4 size) 1400-9384 Attachment according to VDI/VDE 3845, level 1, heavy-duty version (AA5 size) 1400-9992 Attachment for VETEC S 160/R, heavy-duty version 1400-9385 Mounting kit for Type 3277 Linear Actuators (240, 350, 700 cm²) 1400-7471 Mounting kit for Type 3271 Linear Actuators (120 cm²) 1400-7472 1402-1093 Mounting kit for SED diaphragm valves (both mounting kits are required) 1400-7472 Mounting kit for control valves with NAMUR rib or attachment to valves with rod-type yokes ac- 1400-7468 cording to IEC 60534-6 (20 to 35 mm rod diameter) Mounting kit for Type 3510 Micro-flow Valve with 60 or 120 cm² actuator area 1402-0479 EB 4747 EN... -
Page 16: Travel Tables
Actuator area Rated travel Required le- Assigned pin posi- tion [cm²] [mm] 120/175/240/350 355/700/750 Attachment according to IEC 60534-6 (NAMUR rib) SAMSON valves with Type 3271 Actu- Other control Required le- Assigned pin posi- ator valves tion Actuator area Rated travel Max. travel [cm²]... -
Page 17: Technical Data
NAMUR NC contact Contacts 1 or 2 Permissible ambient temperature –25 to +80 °C Electrical connection M20x1.5 or ½ NPT Degree of protection IP 66 Weight Approx. 0.65 kg Type 4747-xxx1 Electric Limit Switch · Specifications apply to silver and gold-plated contacts Switching element Electric limit switch: changeover contact/SPDT (single-pole/double-throw type) Permissible load AC voltage 250 V/10 A Contacts Permissible ambient temperature –40 to +80 °C Electrical connection M20x1.5 or ½ NPT Degree of protection IP 66... -
Page 18: Summary Of Explosion Protection Approvals
Number KIWA 16ATEX0052 X II 2 G Ex db IIC T6...T4 Gb ATEX 4747-210 1) II 2 D Ex tb IIC T80 °C Db Date 2018-10-18 Number IECEx PTB 09.0060X Ex d IIC T6,T5,rep.T4 IECEx 4747-211 Ex tD A21 IP66 T80°C Date 2009-11-25 Number 2020032231503131 Ex d IIC T4 ~ T6 Gb CCC Ex Date 2020-11-04 Ex tD A21 IP66 T80°C Valid until 2025-11-03 4747-212 Number GYJ20.1056X Ex d IIC T4~T6 Gb NEPSI Date 2020-02-12 DIP A21 Ta, T4~T6 Valid until 2025-01-25 EB 4747 EN... - Page 19 II 3G Ex ic IIC T6 Gc Number PTB 12 ATEX 2020 ATEX 4747-810 1) II 3G Ex nAc II T6 Gc Date 2013-04-26 II 3D Ex tc IIIC T85°C Dc IP66 2Ex nA IIC T6/T5/T4 Gc Number RU C-DE.AA87.B.00084/19 2Ex ic IIC T6/T5/T4 Gc EAC Ex 4747-813 Date 2019-02-19 Ex tc IIIC T85 °C Dc Valid until 2024-02-19 Ex tb IIIC T80°C Db X Number ZETC/36/2021 II 3G Ex ic IIC T6 Gc TR CMU 4747-816 Date 2021-07-26 II 3G Ex nAc II T6 Gc 1055 II 3D Ex tc IIIC T85 °C Dc IP66 Valid until 2024-07-25 EU type examination certificate EB 4747 EN...
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Page 20: Dimensions In Mm
Design and principle of operation 3.7 Dimensions in mm EB 4747 EN... -
Page 21: Measures For Preparation
4.2 Transporting 5 Mounting Î Pack the limit switch properly to comply The limit switch is suitable for the following with terms of transportation. types of attachment: − Direct attachment to SAMSON Transport instructions Type 3277 Actuator − Protect the limit switch against external − Attachment to actuators according to influences (e.g. impact). IEC 60534-6 (NAMUR rib) − Protect the limit switch against moisture... -
Page 22: Mounting Orientation
The travel that can be implemented at the valve is additionally restricted by the re- quired compression of the actuator springs. If a pin position other than position 35 with the standard M lever is required or a differ- EB 4747 EN... -
Page 23: Direct Attachment To Type 3277 And Type 3277-5 Actuators
6. Mount cover (6) on the other side. Make sure that the vent plug faces downward (in cases where this is not possible, mount it in the horizontal position) when the control valve is installed to allow any condensed water that collects to drain off. EB 4747 EN... - Page 24 Mounting M lever Mounting plate Fastening screw Fastening screw Follower clamp Fastening screw Cover Vent plug Fig. 3: Mounting onto Type 3277 Actuator and Type 3277-5 Actuators EB 4747 EN...
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Page 25: Attachment According To Iec 60534-6 (Namur Rib)
4. Screw the two bolts (3) to the bracket of the stem connector, place the follower plate (4) on top and use the screws for fastening. 5. Place the bracket with limit switch on the NAMUR rib of the valve in such a man- ner that the follower pin (7) rests in the slot of the follower plate (4). 6. Align the middle of the bracket to the 50 % marking on the travel indicator scale and fasten it using its screw (1) on- to the valve. EB 4747 EN... - Page 26 Mounting XL lever L lever Fastening screw Bracket M lever Bolt Follower plate XL lever L lever Follower pin (with XL lever: 1992-1825) Disk spring 10 Tab washer Fig. 4: Attachment according to IEC 60534-6 (NAMUR) EB 4747 EN...
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Page 27: Attachment To Type 3510 Micro-Flow Valve
3. Place follower clamp (1) on the valve stem connector, align at a right angle and screw tight. 4. Position the bracket (3) with the limit switch on the valve yoke and screw tight, making sure the follower pin (2) slides in- to the groove of the follower clamp (1). EB 4747 EN... - Page 28 Mounting Follower clamp Follower pin Bracket Disk spring Lever Tab washer Fig. 5: Attachment to Type 3510 Micro-flow Valve EB 4747 EN...
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Page 29: Attachment According To Vdi/Vde 3845 To Rotary Actuators
(130 mm) (depending on the actuator size). Position the top pair of brackets (5) and fasten. 5. Unscrew the standard follower pin from the limit switch's M lever (1). Use the metal follower pin (Ø 5 mm) included in the mounting kit and screw tight into the hole for pin position 90°. 6. Fasten the limit switch onto the mounting plate (6). 7. Place the limit switch together with the mounting plate on the top bracket (5) EB 4747 EN... - Page 30 Mounting 1 Lever 2 Follower clamp 3 Coupling wheel 4 Bottom pair of brackets 5 Top pair of brackets 6 Mounting plate Fig. 6: Attachment to rotary actuators according to VDI/VDE 3845 (light version) EB 4747 EN...
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Page 31: Heavy-Duty Version
5. Fasten coupling wheel (5) on the slotted actuator shaft or adapter (6) using screw (3) and disk spring (4). 6. Unscrew the standard follower pin from the limit switch's M lever (1). Attach the follower pin (Ø5 mm) included in the mounting kit to pin position 90°. EB 4747 EN... - Page 32 Mounting Lever Mounting plate Screw Disk spring Stem connector Adapter Enclosure Spacer Fig. 7: Attachment to rotary actuators according to VDI/VDE 3845 (heavy-duty version) EB 4747 EN...
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Page 33: Electrical Connections
Î Install the connecting cable properly so that it is protected against mechanical damage. NOTICE The Type 4747 Limit Switch is designed to Î If the temperature at the entry parts ex- operate under exactly defined electrical ceeds 70 °C, use a temperature-resistant conditions. connecting cable: Only connect the limit switch to a suitable power supply after mounting is completed. -
Page 34: Electrical Connection For Type Of Protection Ex Ia
(U or U or I Î Use certified cable glands and blanking or P or C and L or L plugs with appropriate type of protection with an IP rating ≥ 66 and suitable for Observe clause 12 of EN 60079-14: 2008 the certified temperature range. (VDE 0165, Part 1) for installation of the in- trinsically safe circuits. EB 4747 EN... -
Page 35: Equipment For Use In Zone 2/22
To ensure the operating or ½ NPT thread. reliability of the limit switch, the amplifiers The screw terminals are designed for wire should comply with the limits of the output cross-sections of 0.2 to 2.5 mm². Tighten the circuits conforming to EN 60947-5-6. screws by 0.5 to 0.6 Nm. Observe the relevant regulations for installa- tion in hazardous areas. EB 4747 EN... -
Page 36: Servicing
Î Retain testing and servicing documents as well as certificates issued by the man- ufacturer or inspector together with other Note safety-relevant documents for the device The limit switch was checked by SAMSON or plant. before it left the factory. Replace explosion-protected components on- − The product warranty becomes void if ly with original, routine-tested components service or repair work not described in by the manufacturer. -
Page 37: Preparation For Return Shipment
Servicing 7.2 Preparation for return shipment Defective limit switches can be returned to SAMSON for repair. Proceed as follows to return devices to SAMSON: 1. Put the control valve out of operation. See associated valve documentation. 2. Remove the limit switch (see section 9). 3. Proceed as described on our website at www.samsongroup.com > Service & Support > After-sales Service > Returning goods. EB 4747 EN... -
Page 38: Malfunctions
Table 3 shows further troubleshooting. Table 3: Troubleshooting Description of fault Measures The limit switch does not issue an electrical Î Check the electrical connection. signal Î Check attachment. Actuator does not move. Î Check the attachment for possible blockage. Î Check the configuration of the mounting parts. The limit switch does not function Î Contact SAMSON's After-sales Service. EB 4747 EN... -
Page 39: Emergency Action
Do not mount or service the limit switch and hazardous substances together with while the process is running and only after your other household waste. isolating the plant by closing the shut-off valves. On request, we can appoint a service pro- vider to dismantle and recycle the product. EB 4747 EN... -
Page 40: Annex
E-mail address You can reach our after-sales service at aftersalesservice@samsongroup.com. Addresses of SAMSON AG and its subsid- iaries The addresses of SAMSON AG, its subsid- iaries, representatives and service facilities worldwide can be found on our website (www.samsongroup.com) or in all SAMSON product catalogs. - Page 41 Leiter Qualitätssicherung/Head of Quality Managment/ Zentralabteilungsleiter/Head of Department/Chef du département Responsable de l'assurance de la qualité Entwicklungsorganisation/Development Organization SAMSON AKTIENGESELLSCHAFT Telefon: 069 4009-0 · Telefax: 069 4009-1507 Revison 07 Weismüllerstraße 3 60314 Frankfurt am Main E-Mail: samson@samson.de EB 4747 EN...
- Page 42 Leiter Qualitätssicherung/Head of Quality Managment/ Zentralabteilungsleiter/Head of Department/Chef du département Responsable de l'assurance de la qualité Entwicklungsorganisation/Development Organization SAMSON AKTIENGESELLSCHAFT Telefon: 069 4009-0 · Telefax: 069 4009-1507 Revison 07 Weismüllerstraße 3 60314 Frankfurt am Main E-Mail: samson@samson.de EB 4747 EN...
- Page 43 Management par la qualité totale Development Valve Attachments and Measurement Technologies SAMSON AKTIENGESELLSCHAFT · Weismüllerstraße 3 · D 60314 Frankfurt am Main Revision 08 Fon: +49 69 4009-0 · Fax: +49 69 4009-1507 · E-Mail: samson@samson.de · Internet: www.samson.de EB 4747 EN...
- Page 44 Leiter Qualitätssicherung/Head of Quality Managment/ Zentralabteilungsleiter/Head of Department/Chef du département Responsable de l'assurance de la qualité Entwicklungsorganisation/Development Organization SAMSON AKTIENGESELLSCHAFT Telefon: 069 4009-0 · Telefax: 069 4009-1507 Revison 07 Weismüllerstraße 3 60314 Frankfurt am Main E-Mail: samson@samson.de EB 4747 EN...
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- Page 64 EB 4747 EN SAMSON AKTIENGESELLSCHAFT Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 samson@samsongroup.com · www.samsongroup.com...
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