1. DL manuals
  2. Samson
  3. Switch
  4. 4746
  5. Mounting And Operating Instructions

Samson 4746 Mounting And Operating Instructions - 3  Attachment to The Valve

Manual is about: electric or pneumatic limit switch

Summary of 4746

  • Page 1

    Mounting and operating instructions eb 8365 en edition october 2013 type 4746 electric or pneumatic limit switch.

  • Page 2

    Definition of signal words danger! Hazardous situations which, if not avoided, will result in death or seri- ous injury warning! Hazardous situations which, if not avoided, could result in death or se- rious injury notice property damage message or mal- function note: additional information tip: rec...

  • Page 3

    Contents eb 8365 en 3 1 general safety instructions .............................................................................5 2 design and principle of operation ..................................................................6 2.1 principle of operation .........................................

  • Page 5

    Eb 8365 en 5 general safety instructions 1 general safety instructions for your own safety, follow these instructions concerning the mounting, start up and opera- tion of the device: − the device is to be mounted, started up or operated only by trained and experienced personnel familiar with the pro...

  • Page 6: Ation

    6 eb 8365 en design and principle of operation 2 design and principle of oper- ation the limit switches are attached to pneumatic control valves as well as to type 4765 and type 4763 positioners. These limit switches have either inductive, electric or pneumatic contacts. They issue a signal when the...

  • Page 7

    Eb 8365 en 7 design and principle of operation 3.1 3 5 l 10 4.1 1 1.1 2 l 3.1 3 10 7 6.2 6.1 6 4.2 1 1.1 2 l 3.1 3 4.2 1 1.1 2 10 8 6.2 6.1 6 a 1 a 2 9 9 8.2 8.1 8.1 8.2 p z inductive limit switch electric limit switch pneumatic limit switch with switching function 1 lever for valve travel 1.1 pin 2...

  • Page 8

    8 eb 8365 en design and principle of operation 2.2 article code and versions limit switch (device index .07 and higher) type 4746- x x x x x x x 0 x x x x explosion protection without 0 ex ii 2g ex ia iic t6 acc. To atex 1 csa/fm intrinsically safe/non incendive 3 ex ii 3g ex na ii t6 acc. To atex 8...

  • Page 9

    Eb 8365 en 9 design and principle of operation compatibility with paint without 0 free from substances that impair paint adhesion 1 limit switch (device index .06 or lower) type 4746- x x x x type inductive, no explosion protection 1 inductive, ex ib iic t6 2 electric 3 pneumatic 4 electrical connec...

  • Page 10: 2.3  Technical Data

    10 eb 8365 en design and principle of operation 2.3 technical data inductive limit switch type 4746-x2 type 4746-0281 control circuit switching amplifier according to en 60947-5-6 three-wire switch operating voltage 10 to 30 v proximity switch sc3,5-n0-ye 2) sj3,5-sn sj3,5-s1n sb3,5-e2 permissible a...

  • Page 11

    Eb 8365 en 11 design and principle of operation materials housing and cover powder-coated aluminum lever and shaft 1.4571 cable gland m20x1.5, black polyamide travel range attachment according to iec 60534-6 (namur) lever i: 7.5 to 60 mm · lever ii: 60 to 180 mm attachment to type 4763 and type 4765...

  • Page 12: 2.4  Accessories

    12 eb 8365 en design and principle of operation 2.4 accessories accessories for attachment according to iec 60534-6 valve cast yoke (namur rib) (see section 3.1) rod-type yoke (18 to 32 mm rod diameter) (see section 3.2) travel up to 60 mm up to 180 mm up to 60 mm up to 180 mm mounting kit order no....

  • Page 13

    Eb 8365 en 13 design and principle of operation type certificate type of protection 4746-1x number ptb 98 atex 2114 ii 2g ex ia iic t6 gb date 2003-03-07 ec type examination certificate 4746-3 number 1607226 ex ia iic t6; class i, zone 0; class i,ii, div.1, groups a,b,c,d,e,f,g; class i,ii, div.2, g...

  • Page 14: 3  Attachment to The Valve

    14 eb 8365 en attachment to the valve 3 attachment to the valve the accessories listed in section 2.4 are re- quired for attachment. Î the lever (i or ii) must be installed before the limit switch is attached to the control valve. To do so, slide the lever clamping plate (1.1) over the lever (1) and...

  • Page 15

    Eb 8365 en 15 attachment to the valve 12 13 14 1.1 2 1.2 1 1.3 11 11.1 10 10.1 12 13 15 16 1.1 2 1.2 1 1.3 11 11.1 10 10.1 14 attachment to valve with cast yoke (namur rib) attachment to valve with rod-type yoke 1 lever 1.1 clamping plate 1.2 screw 1.3 wire strap 2 shaft 10 plate 10.1 screws 11 pin ...

  • Page 16: Valve

    16 eb 8365 en attachment to the valve 3.3 attachment to type 3591 valve Î use the supplied washers for all screw connections. 1. Fasten the round brackets (1) using the clamps (3) and nuts (2) lightly onto the valve yoke. 2. Screw tight the bar (4) using the screws (5) onto the clamps (3). 3. Fasten...

  • Page 17

    Eb 8365 en 17 attachment to the valve 7 16 14 13 8 9 10 11 17 12 1 round clamp 2 nut 3 clamp 4 bar 5 screws 6 limit switch 7 thread 8 anti-rotation fixture 9 mounting bracket 10 screws 11 follower clamp 12 nut and bolt 13 pin 14 nut 15 lever ii 16 clamp (for lever) 17 nut 18 lever extension fig. 3: ...

  • Page 18

    18 eb 8365 en attachment to the valve 3.4 attachment to positioner for attachment of the limit switch to the type 4763 or 4765 positioner according to fig. 4, a short lever (1) and an intermediate piece (31) are required as accessories (order no. 1400-6710). 1. Insert one o-ring (30) into both the l...

  • Page 19: 4  Connections

    Eb 8365 en 19 connections 4 connections 4.1 electrical connection danger! For electrical installation, observe the relevant electrotechnical regulations and the accident prevention regula- tions that apply in the country of use. In germany, these are the vde regu- lations and the accident prevention...

  • Page 20

    20 eb 8365 en connections note concerning equipment for use in zone 2: in equipment operated according to type of protection ex na ii (non- sparking equipment) according to en 60079-15:2003, circuits may be connected, interrupted or switched while energized only during installa- tion, maintenance or...

  • Page 21: Type 4746-X2

    Eb 8365 en 21 connections cable entry the cables for the electric control signal must be routed through the cable gland on the housing and connected to the input terminals marked + and – as illustrated in fig. 5 or ac- cording to the adhesive label on the inside of the cover. The following accessori...

  • Page 22: 5  Operation

    22 eb 8365 en operation 5 operation 5.1 adjusting the switching point the limit switches attached to control valves are usually adjusted in such a way that a signal is issued when the final travel posi- tions are reached. Optionally, the switching point can also be adjusted to any position within th...

  • Page 23: 5.1.2  Type 4746-X3 and

    Eb 8365 en 23 operation note: the switching elements and the le- vers required to activate them react to temperature fluctuations. To ensure reliable switching, the switching hys- teresis between the mechanical stop (e.G. Plug in the seat) and the switch- ing point of the limit switch must be larger...

  • Page 24: Devices

    24 eb 8365 en servicing explosion-protected devices 6 servicing explosion-protected devices if a part of the device on which the explosion protection is based needs to be serviced, the device must not be put back into operation until a qualified inspector has assessed it ac- cording to explosion pro...

  • Page 25: 8  Dimensions

    Eb 8365 en 25 dimensions 8 dimensions 27.5 94 44.5 18 37 18 83 74 92 15 83 20.6 27,5 74 189 15 94 64 44.5 m 20x1.5 77 71 30 148 77 71 30 148 type 4746-x2 and type 4746-x3 air connection for separate air supply, tapped hole g 1 / 8 intermediate piece for attachment to positioner m8 fastening screw m8...

  • Page 26: 9  Certificates

    26 eb 8365 en certificates 9 certificates note: the type designations of the types 4746-2 and 4746-3 limit switches have been changed. The certificates of conformity remain valid. See the following confirmation for details..

  • Page 27

    Eb 8365 en 27.

  • Page 28

    28 eb 8365 en.

  • Page 29

    Eb 8365 en 29.

  • Page 30

    30 eb 8365 en.

  • Page 31

    Eb 8365 en 31.

  • Page 32

    32 eb 8365 en.

  • Page 33

    Eb 8365 en 33.

  • Page 34

    34 eb 8365 en a d d en d um p a g e 5 revi si o n s c o nt ro l nu mber: 2 s ep te mb e r 2 0 1 5 a d d en d um t o eb 8 3 6 5 en ins ta ll a ti o n ma nua l f o r a p p a ra tus a p p ro ve d b y fm fo r us e i n ha za rdou s lo ca ti o n s. Electr ic al ra tin g of intrin si ca lly s afe a pp ara ...

  • Page 35

    Eb 8365 en 35 a d d en d um p a g e 7 revi si o n s c o nt ro l nu mber: 2 s ep te mb e r 2 0 1 5 a d d en d um t o eb 8 3 6 5 en ve rs io n : m od el 4 74 6 -3 3 ele ct ric al li m it swi tch. S up ply a nd ev al ua tio n ba rrier f m a pp rov ed . Ca ble entry m 2 0 x 1 .5 or m eta l c on duit ac ...

  • Page 36

    36 eb 8365 en.

  • Page 37

    Eb 8365 en 37.

  • Page 38

    38 eb 8365 en.

  • Page 39

    Eb 8365 en 39.

  • Page 40: Eb 8365 En

    Samson ag · mess- und regeltechnik weismüllerstraße 3 · 60314 frankfurt am main, germany phone: +49 69 4009-0 · fax: +49 69 4009-1507 samson@samson.De · www.Samson.De eb 8365 en 2017-09-27 · engl ish.