Samson 4740 Mounting And Operating Instructions Download Page 2

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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 seri-
ous injury

NOTICE

Property damage message or mal-
function

Note:

Additional information

Tip:

Recommended action



EB 8357 EN

Summary of Contents for 4740

Page 1: ...Mounting and Operating Instructions EB 8357 EN Edition January 2015 Type 4740 Electric Limit Switch...

Page 2: ...h if not avoided will result in death or seri ous injury WARNING Hazardous situations which if not avoided could result in death or seri ous injury NOTICE Property damage message or mal function Note...

Page 3: ...in mm 9 4 Mounting and start up 10 4 1 Mounting on Type 3353 and Type 3354 Valves 10 4 1 1 Preparing the mounting kit 10 4 1 2 Mounting on the control valve 12 4 2 Mounting on Type 3379 Pneumatic Actu...

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Page 5: ...the applicable standards Any hazards that could be caused in the valve by the process medium and the operating pressure or by moving parts are to be prevented by taking appropriate precautions If inad...

Page 6: ...o indicate inductive mechanical proximity switch 3 Article code 4 Configuration ID 5 Serial no 2 2 Article code Limit switch Type 4740 0 0 0 x x x x 0 0 x x Type Inductive proximity sensor NCB2 V3 NO...

Page 7: ...it switch can optionally be fitted with a 3 2 way solenoid valve When the inte grated solenoid valve is energized supply air is applied to the actuator When the so lenoid valve is de energized the act...

Page 8: ...er according to EN 60947 5 6 Version with microswitches Switching capacity 250 V AC 16 6 A Option 3 2 way solenoid valve Nominal voltage 24 V DC Power 1 5 W Flow rate 55 ln min KV 0 035 Maximum operat...

Page 9: ...EB 8357 EN 9 Markings on the device 3 3 Dimensions in mm 121 94 22 M20 x 1 5...

Page 10: ...ired to mount the limit switch onto a fail close FA NC valve Limit switch with inductive proximity switch es Thread the guided bushing 2 with the beveled part 2 1 facing downward on to the stem of the...

Page 11: ...mit switch with inductive proximity switches Mounting kit for limit switch with microswitches 2 Threaded bushing 2 1 Beveled part 2 2 Straight rim 3 Adapter 3 1 Stem 3 2 Sleeve 4 Spacer 2 3 1 3 3 2 4...

Page 12: ...or the version with microswitches make sure that the switches 1 5 in the limit switch do not get damaged 5 Lock the limit switch in the required posi tion using the retaining screw 1 4 Fail close FA N...

Page 13: ...ounting and start up 1 2 3 5 1 4 1 Limit switch 1 4 Retaining screw 1 5 Switch 2 Threaded bushing 3 Adapter 5 Actuator 5 1 Transparent cover 5 2 Cap 5 1 5 2 5 1 5 Fig 3 Mounting the limit switch on th...

Page 14: ...ue to sharp thread Do not touch the sharp thread of the adapter Limit switch with inductive proximity switch es Thread the guided bushing 2 with the beveled part 2 1 facing downward on to the stem of...

Page 15: ...ng kit for limit switch with inductive proximity switches Mounting kit for limit switch with microswitches 2 Threaded bushing 2 1 Beveled part 2 2 Straight rim 3 Adapter 3 1 Stem 2 1 2 2 2 2 2 1 2 1 2...

Page 16: ...ator 5 2 Pull the cap 5 2 off the actuator stem 3 Thread the ready assembled adapter see section 4 2 1 from the top into the actuator 5 4 Carefully place the limit switch 1 on the ready assembled adap...

Page 17: ...nting and start up 5 1 5 2 5 1 5 1 Limit switch 1 4 Retaining screw 1 5 Switch 2 Threaded bushing 3 Adapter 5 Actuator 5 1 Transparent cover 5 2 Cap 1 2 3 5 1 4 Fig 5 Mounting the limit switch onto Ty...

Page 18: ...lations and the accident prevention regulations of the employers liability insurance 1 Unscrew the four screws on housing cov er and take the cover off the actuator 2 Route wires through the cable gla...

Page 19: ...ghly before connecting them Two pneumatic connections exist on the limit switch version with solenoid valve see Fig 7 The following assignment apply to the con nections Connection 1 Supply Connection...

Page 20: ...1 3 can move on the rail 1 4 3 Adjust the switching point with the screw 1 2 Turn the screw clockwise to move the lim it contact towards the top end position Turn the screw counterclockwise to move t...

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Page 24: ...SAMSON AG MESS UND REGELTECHNIK Weism llerstra e 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 samson samson de www samson de EB 8357 EN 2016 02 05 English...