Proximity Sensor Section[1]

Proximity sensor terminologyFunction description of theinductive proximity switchAn inductive proximity switch consistsmainly of three functional groups:1. Oscillator2. Trigger circuit3. Output switching deviceAs soon as a supply voltage is applied, theoscillator begins to swing and takes on adefined current.

The electromagnetic field produced bythe oscillator coil is oriented by a ferritecore. The effective field of the sensor isthereby focused through the active faceof the sensor.

If a target made of an electricallyconductive material is positioned near theactive face, eddy currents are inducedwithin this target. The resulting power lossleads to a reduction in the quality factor ofthe resonant circuit and the oscillatoramplitude consequently falls. This isevaluated by the trigger circuit, whichactivates the the output switching deviceonce a certain amplitude is reached.

Definition of the sensing rangeEN 60947-5-2 defines the sensing rangefor all types of proximity switches apartfrom slot and ring types.There are two ways of operating aproximity switch:• axially approaching objects• radially approaching objects

The following definitions only apply to axialoperation.

Nominal sensing range snThe nominal sensing range (according toEN 60947-2-5 "Rated Sensing Range") is astandard value for determining theoperating distance. It does not take intoaccount process tolerances or changes dueto outside influences such as voltage andtemperature.

Hysteresis HDistance between the switching points atwhich the target approaches and movesaway from the proximity switch.

Proximity sensor terminology

Blackburn Office - 01254 685900 Chippenham Office - 01249 46009930

PROXIMITYSENSORS

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Proximity sensor application tipsInfluences on thesensing rangeBesides its dimensions, the materialcomposition of the target also plays animportant role. This is described by thereduction factor. The reduction factor isthe factor by which the sensing range isreduced based on different materials. FE360 (St37 steel) is the reference materialfor inductive proximity switches and aground plate for capacitive proximityswitches. The smaller the reduction factor,the smaller the sensing range for thespecific material. This reduction factor canvary depending on the housing andshielding material, among other criteria.For this reason, the customer should referto the value in the relevant data sheet.For inductive proximity switches, thefollowing table contains some typical valuesfor the reduction factor:

Condition for installation

Cylindrical proximity switchesDevices with the same diameter can havedifferent sensing ranges. The followingtable shows some typical examples:

Non-embeddable proximityswitchesNon-embeddable proximity switches havethe greatest sensing range (based on thediameter). Coils are used to generateelectromagnetic fields in inductiveproximity switches. A portion of this field isstill radiated laterally, however. A lateraleffect can also be observed in capacitiveproximity switches.In order to prevent these high-rangeproducts from being damped by theirenvironment, a space must be left aroundthe sensor element. This space mustconform to the minimum requirementsshown in the following table.

In capacitive proximity sensors, thefollowing table contains some typical valuesfor the reduction factor:

Embeddableproximity switchesEmbeddable inductive and capacitiveproximity switches can be installed withoutleaving a space (A=0). The advantage isthat they are better mechanically protectedand less prone to errors than non-embeddable types. The necessaryreduction of the lateral radiation of the fieldis obtained by special internal shielding.This entails a loss of range. Theseproximity switches only achieve about60% of the sensing range ofnonembeddable models.

The switching characteristics of magneticfield sensors are practically unaffected bythe mounting conditions, as long as thesurrounding material is non-magnetisable.

Mutual interferenceThe minimum distances F listed in theabove table must be maintained in orderto prevent mutual interference. Proximityswitches with altered frequencies are alsoavailable on request in case these distancescause application-related problems. Theycan be mounted directly adjacent to eachother. In case of doubt, please contact us.

Sensing RangeEmbeddable Non- Increased

embeddable Sensing Range

6.5 1.5 2 -8 1.5 2 312 2 4 618 5 8 1230 10 15 22

Diametermm

Model Dimensions [mm] A B F

Embed. F = DInd. 2 x Sn 3 x D Non-embeddable

F = 3 x DCap. Plastics Metal Plastics MetalCJ1 5 15 15 30 60CJ4 20 35 80 120 60CJ2 15 50 30 60 100CJ6 40 50 80 160 100

Material Reduction Factor

Grounded Plate 1Water 1Alcohol 0.75Ceramic 0.6Glass 0.5PVC 0.45Ice 0.3Oil 0.28


Steel 1Aluminium Foils 1Stainless Steel 0.85Aluminium 0.4Brass 0.4Copper 0.3

Proximity sensor application tips

31Blackburn Office - 01254 685900 Chippenham Office - 01249 460099

PROXIMITYSENSORS

Order code structure for inductive,capacitive and magnetic field sensors

Proximity sensor order code structure


PROXIMITYSENSORS

3 wire d.c. metal barrel inductive proximitysensors with 2m cable

Features�Standard or extended sensing range�Flush mounting (embeddable)�DIN standard proximity switches�NPN or PNP outputs�2m cable�LED indication�Short circuit protection�Reverse polarity protection

Connection diagrams

Technical specificationSupply voltage . . . . . . . . . . . .10-30V d.c.No load current . . . . . . . . . . . . .≤ 15mAOutput indication . . . . . . . . .LED yellowInstallation . . . . . . . . . . . .Flush mounting

(embeddable)

Ambient temperature . . .-25 to +70˚CHousing material . . . . .Brass nickel-platedSensing face . . . . . . . . . . . . . . . . . . .PBTConnection type . . . . . . . .2m PVC cableProtection . . . . . . . . . . . . . . . . . . . .IP67

Sensors with 2m cable flush mounting (embeddable)

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Sensing Switching Switching Housing Output Order Code Price 1+ Price 5+Distance Current Frequency Dimensions Type0.8mm 100mA 3000Hz 4mm (1) PNP NBB0.8-4M25-E2 £39.85 £35.87

1.5mm 100mA 1500Hz M8 (2) PNP NBB1.5-8GM50-E2 £30.58 £27.53

1.5mm 100mA 1500Hz M8 (2) NPN NBB1.5-8GM50-E0 £35.57 £32.02

2.0mm 100mA 1500Hz M8 (2) PNP NBB2-8GM50-E2 £35.57 £32.02

2.0mm 100mA 1500Hz M8 (2) NPN NBB2-8GM50-E0 £35.57 £32.02









10mm 200mA 200Hz M30 (5) PNP NBB10-30GM50-E2 £34.52 £31.07

10mm 200mA 200Hz M30 (5) NPN NBB10-30GM50-E0 £34.52 £31.07


15mm 200mA 200Hz M30 (5) NPN NBB15-30GM50-E0 £47.09 £42.39

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Proximity sensors


PROXIMITYSENSORS

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3 Wire d.c. metal barrel inductive proximitysensors with 4 pin M12 connector

Features�Standard or extended sensing range�Flush mounting (embeddable)�DIN standard proximity switches�NPN or PNP outputs�M12 (V1 type) 4 pin connection�LED indication�Short circuit protection�Reverse polarity protection

Connection diagrams

Pin Connections


(embeddable)

Ambient temperature . . .-25 to +70˚CHousing material . . . . .Brass nickel-platedSensing face . . . . . . . . . . . . . . . . . . .PBTConnection type . . . . .V1 style M12 plugProtection . . . . . . . . . . . . . . . . . . . .IP67

Sensors with 4 pin M12 connection flush mounting(embeddable)

Cables and connectors

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Sensing Switching Switching Housing Output Order Code Price 1+ Price 5+Distance Current Frequency Dimensions Type1.5mm 100mA 1500Hz M8 (1) NPN NBB1.5-8GM40-E0-V1 £34.49 £31.05

1.5mm 100mA 1500Hz M8 (1) PNP NBB1.5-8GM40-E2-V1 £31.07 £27.97

2.0mm 100mA 1500Hz M8 (1) NPN NBB2-8GM40-E0-V1 £34.49 £31.05

2.0mm 100mA 1500Hz M8 (1) PNP NBB2-8GM40-E2-V1 £34.49 £31.05









10mm 200mA 200Hz M30 (4) PNP NBB10-30GM50-E2-V1 £33.69 £30.33

10mm 200mA 200Hz M30 (4) NPN NBB10-30GM50-E0-V1 £33.69 £30.33


15mm 200mA 200Hz M30 (4) NPN NBB15-30GM50-E0-V1 £46.01 £41.41

Configuration Cable Type Order Code Price 1+ Price 5+

M12 straight 4 pin connector 2m PVC V1-G-2M-PVC £5.81 £5.23


M12 right angle 4 pin connector 2m PUR 464020 £5.67 £5.11


M12 straight plug 4 pin No Cable 490011 £4.68 £4.22

M12 right angled plug 4 pin No Cable 490014 £4.83 £4.35

Proximity sensors


PROXIMITYSENSORS

Short bodied metal barrel sensors3 wire d.c. PNP output

Pin connections


(embeddable)

Ambient temperature . . .-25 to +70˚CHousing material . . . . .Brass nickel-platedSensing face . . . . . . . . . . . . . . . . . . .PBTConnection type . . . . .V1 style M12 plugProtection . . . . . . . . . . . . . . . . . . . .IP67

Sensors with 2m cable flush mounting (embeddable)

Sensors with M12 4 pin connector flush mounting(embeddable)

Cables and Connectors

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Sensing Switching Switching Housing Output Order Code Price 1+ Price 5+Distance Current Frequency Dimensions Type2.0mm 100mA 3000Hz M8 (1) PNP NBB2-8GM30-E2 £34.63 £31.17




Sensing Switching Switching Housing Output Order Code Price 1+ Price 5+Distance Current Frequency Dimensions Type2.0mm 100mA 3000Hz M8 (5) PNP NBB2-8GM30-E2-V1 £34.49 £31.04











Proximity sensors


PROXIMITYSENSORS

Features�Short body for compact applications�Extended range flush mountedswitches

�Flush mounting (embeddable)�DIN standard proximity switches�PNP outputs only�2m cable or plug connection�M12 (V1 type) 4 pin connection�LED indication�Short circuit protection�Reverse polarity protection

Connection diagrams

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(7) (8)(6)

Varikont sensor range

Features�DIN standard proximity switchesEN 60947-5-2

�PNP or NPN output�LED indication for supply andoutput status

�Short circuit protection (pulsing)�Reverse polarity protection

Technical specificationSupply voltage . . . . . . . . . . . .10-30V d.c.Max switching current . . . . . . . . .200mANo load current . . . . . . . . . . . . .≤ 20mASwitching frequency . . . . . . . . . . .150HzInstallation . . . . . . . . . . . . .20mm sensing

flush mounting (embeddable). . . . . . . . . . . . . . . . . 40mm sensing non-

flush mounting (not embeddable)

Output indication . . . . . . . . .LED yellowAmbient temperature . . .-25 to +85˚CHousing material . . . . . . . . . . . .PA-GF35Sensing face . . . . . . . . . . . . . . . .PA-GF35Connection type . . . . . . . . . . .4 pin M12

connector V1 typeProtection . . . . . . . . . . . . . . . . . . . .IP67

Varikont L cube sensors 3 wire 10-30V d.c.

Features�DIN standard proximity switchesEN 60947-5-2

�PNP or NPN outputs�N/C or N/O programmable outputs�LED indication for supply andoutput status

�Short circuit protection (pulsing)�Reverse polarity protection

Technical specificationSupply voltage . . . . . . . . . . . .10-60V d.c.Max switching current . . . . . . . . .200mANo load current . . . . . . . . . . . . .≤ 14mASwitching frequency . . . . . . . . . . .500HzOutput indication . . . . . . . . .LED yellowInstallation . . . . . . . . .15mm sensing non-

flush mounting (not embeddable)

Ambient temperature . . .-25 to +70˚CHousing material . . . . . . . . . . . . . . .PBTSensing face . . . . . . . . . . . . . . . . . . .PBTConnection type . . . . . . . . . . . .Terminal

compartmentProtection . . . . . . . . . . . . . . . . . . . .IP67

Varikont M sensors 4 wire 10-60V d.c.

This housing design was introduced byPepperl & Fuchs under the brand nameVariKont and VariKont M. The VariKontconsists of a robust base enclosure (PBTor metal) which is screwed onto themounting surface and contains the terminalconnections. The top part which is madeof PBT, is sealed against the base enclosurewith neoprene and carries the encodedconnector. The top part contains theswitch amplifier.

The sensor head is convertible in fivedirections, i.e. the active surface can bedirected forward, right, left, up or down.

Varikont proximity sensors


PROXIMITYSENSORS

Varikont a.c. and d.c. powered sensorsTechnical specificationSupply voltage . .10-60V d.c. (d.c.version)

20-253V a.c. (a.c.version)Max switching current . . . . . . . . . . . . . .

200mA (d.c.version)500mA (a.c.version)

No load current . . .≤ 10mA (d.c.version)≤ 1.95mA (a.c.version)

Output indication . . . . . . . . .LED yellow

Supply indication . . . . . . . . . .LED greenAmbient temperature . . .-25 to +70˚CHousing material . . . . . . . . . . . . . . .PBTSensing face . . . . . . . . . . . . . . . . . . .PBTConnection type . . . . . . . . . . . .Terminal

compartmentProtection . . . . . . . . . . . . . . . . . . . .IP67

Varikont L cube sensors

Varikont M sensors

Varikont a.c. and d.c. powered sensorsSensing Switch Type Installation Connection Output Switching Supply Output Order Code Price 1+ Price 5+Distance Dimensions Type Type Current Frequency Type15mm Varikont (1) Flush Terminal 200mA 150Hz 10-60V d.c. NPN NJ15+U1+E £43.47 £39.13

15mm Varikont (1) Flush Terminal 200mA 150Hz 10-60V d.c. PNP NJ15+U1+E2 £43.47 £39.13

15mm Varikont (1) Flush Terminal 8-500mA 20Hz 20-253V a.c. N/O or N/C NJ15+U1+W £65.24 £58.72

20mm Varikont (1) Flush Terminal 200mA 150Hz 10-60V d.c. NPN NJ20+U1+E £43.47 £39.13

20mm Varikont (1) Flush Terminal 200mA 150Hz 10-60V d.c. PNP NJ20+U1+E2 £43.47 £39.13

20mm Varikont (1) Non-Flush Terminal 8-500mA 20Hz 20-253V a.c. N/O or N/C NJ20+U1+W £65.24 £58.72

40mm Varikont (2) Non-Flush Terminal 200mA 100Hz 10-60V d.c. NPN NJ40+U1+E £56.22 £50.60

40mm Varikont (2) Non-Flush Terminal 200mA 100Hz 10-60V d.c. PNP NJ40+U1+E2 £56.22 £50.60

40mm Varikont (2) Non-Flush Terminal 8-500mA 20Hz 20-253V a.c. N/O or N/C NJ40+U1+W £82.80 £74.52

Sensing Switch Type Installation Connection Output Switching Supply Output Order Code Price 1+ Price 5+Distance Dimensions Type Type Current Frequency Type20mm Varikont L Flush 4 pin M12 200mA 150Hz 10-30V d.c. PNP NBB20-L2-E2-V1 £28.47 £25.63

20mm Varikont L Flush 4 pin M12 200mA 150Hz 10-30V d.c. NPN NBB20-L2-E0-V1 £28.47 £25.63

40mm Varikont L Non-Flush 4 pin M12 200mA 150Hz 10-30V d.c. PNP NBN40-L2-E2-V1 £28.47 £25.63

40mm Varikont L Non-Flush 4 pin M12 200mA 150Hz 10-30V d.c. NPN NBN40-L2-E0-V1 £28.47 £25.63

Sensing Switch Type Installation Connection Output Switching Supply Output Order Code Price 1+ Price 5+Distance Dimensions Type Type Current Frequency Type15mm Varikont M Non-Flush Terminal 200mA 500Hz 10-60V d.c. PNP NCN15+M1K+E5 £51.80 £46.62

15mm Varikont M Non-Flush Terminal 200mA 500Hz 10-60V d.c. NPN NCN15+M1K+E4 £51.80 £46.62

Cables and connectorsConfiguration Cable Type Order Code Price 1+ Price 5+







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Features�DIN standardproximity switches EN 60947-5-2

�a.c. or d.c. options�a.c. sensors have N/C or N/Oprogrammable outputs

�d.c. sensors have normally open PNPor NPN outputs

�LED indication for supply andoutput status

Varikont proximity sensors


PROXIMITYSENSORS

Nowadays, it is possible to obtain binaryswitching in proximity sensors(simultaneous changes in the switch statusof sensor and amplifier) by using the latesttechnology while maintaining the standardvoltage and current values.

NAMUR proximity sensorsNamur InterfaceNAMUR* proximity sensors traditionallyhave a constant current path characteristic.

*NAMUR: Normenarbeitsgemeinschaft für Mess- undRegelungstechnik der chemischen Industrie (StandardsWorking Group for Control and Instrumentation in theChemical Industry).

Intrinsic SafetyThe characteristic voltage and currentvalues are kept at such a low level that the

NAMUR* proximity sensor canbe used in potentially explosiveenvironments ("intrinsic" type ofprotection). This product seriesis identified by an N at the endof the code, sometimes incombination with a number.

The power limiting function isimplemented in the respectiveapparatus. This means that thecircuit containing a NAMURproximity sensor is onlyintrinsically safe if it is suppliedvia a suitable isolation amplifier.The conformity of the electricalcharacteristics of proximitysensors and isolation amplifiersis ascertained by an "intrinsic

safety test". The cable inductivity andcapacitance are included in this test as theyconstitute energystores.

For more information on explosionprotection and intrinsic safety, pleasecontact our sales department.

What is ATEX?- ATmosphere EXplosiveThe founding treaty of the EuropeanEconomic Community includes articles 95and 137, which form the basis for 2 EUdirectives:Directive 94/9/EC (also known as ATEX100a) of 23.03.94 harmonisation of thelegal regulations of member states withrespect to equipment and protectivesystems designed for use in potentiallyexplosive environments.Applicable since 01.03.1996Directive 1999/92/EC of 16.12.1999minimum requirements for improving thehealth and safety of employees at risk frompotentially explosive atmospheres.Applicable since 28.01.2000.This directive does not apply to themanufacturers of explosion-protecteddevices and is therefore not relevant to thecatalogue.

What does the directive94/9/EC stipulate?• Definition of device groups I and II.• Definition of device categories(classification of devices according tohazardous areas)

• Conformity evaluation procedure (whichmanufacturers are allowed to producedevices in which category)

• Transitional period until 30.06.2003.• From 01.07.2003 onwards, onlyDirective 94/9/EC will apply!

What consequences doesdirective 94/9/EC have for thelegal situation?Previous situation:European-wide constructionalrequirements (type of protection) foroperating material.National installation requirements.

New situation:No national variations!

This means:• Zones 0, 1, 2 for areas at risk fromgas explosions.

• Zones 20, 21, 22 for areas at risk fromdust explosions.

• No zone classification for areas used formedical purposes.

• No national requirements forzone 0 devices.

• Standardised, European-wideinstallation guidelines.

NAMUR proximity sensors


PROXIMITYSENSORS

NAMUR proximity sensors 8V d.c. supply

Connection diagram

Technical specificationSupply voltage . . . . . . . . . . . . . . .8V d.c.Measuring plate detected . . . . . . .≤ 1mAMeasuring plate not detected . . .≥ 3mAOutput indication . . . . . . . . .LED yellowShort circuit protection . . . . . . . . .FittedReverse polarity protection . . . . . .FittedStandards . . . . . . . . .DIN EN 60947-5-6Use in hazardous area . . . .see instruction

manual

Installation . . . . . . . . . . . .Flush mounting(embeddable)

Ambient temperature . .-25 to +100˚CHousing material . . . . . .High grade steel

(V3 microswitch PBT)Sensing face . . . . . . . . . . . . . . . . . . .PBTConnection type . . . . . . .2m PVC CableProtection . . . . . . . . . . . . . . . . . . . .IP67

Sensors with M12 4 pin connection flush mounting(embeddable)

V3 NAMUR microswitch sensor flush mounting(embeddable)

Sensing Switching Connection Output Order Code Price 1+ Price 5+Distance Frequency Type Type2.0mm 1000Hz Cable NAMUR NJ2-V3-N £24.48 £22.04

Sensing Switching Housing Output Order Code Price 1+ Price 5+Distance Frequency Dimensions Type1.5mm 5000Hz M8 (1) NAMUR NCB1.5-8GM25-NO £22.97 £20.68

2.0mm 2000Hz M12 (2) NAMUR NCB2-12GM35-NO £20.49 £18.45

5.0mm 1000Hz M18 (3) NAMUR NCB5-18GM40-NO £29.41 £26.47

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NAMUR proximity sensors


PROXIMITYSENSORS

Our expert technicalsupport is totally free!Call our support hotline on 01254 685900 to

speak to our technical support engineers

Switch/sensor input relay outputFeatures�1 - channel�Control circuit EEx ia IIC�Reversible mode of operation�1 signal output with 1changeover contact

�EMC acc. to NAMUR NE 21

FunctionThe transformer isolated barrier transfersdigital signals from the hazardous area.Sensors per DIN EN 60947-5-6(NAMUR) or mechanical contacts may beused as alarms. The control circuit ismonitored for lead breakage (LB). AC unitshave a low heat build-up due to voltagepeak value generation. The input is safelyisolated from the output and the powersupply (DIN EN 50020). The output andpower supply are safely isolated from eachother (DIN VDE 106 Section 101).

Product description Order Code Price 1+Switch/Sensor Input Amplifier (24V DC) KFD2-SR2-EX1.W £62.50

Switch/Sensor Input Amplifier (115V AC) KFA5-SR2-EX1.W £53.00

Switch/Sensor Input Amplifier (230V AC) KFA6-SR2-EX1.W £53.00

Technical specification KFD2-SR2-Ex1.W KFA5-SR2-Ex1.W KFA6-SR2-Ex1.WConnection type Power rail or terminals 14+, 15- Terminals 14, 15 Terminals 14, 15Rated operational voltage Ue 20... 30 V DC 103.5.. 126 V AC, 45.. 65Hz 207.. 253 V AC, 45.. 65HzRipple 10 % - -Rated operational current 20 ... 23 mA - -Power consumption - 1W 1WDetails of certificate of conformity Certification number PTB 00 Certification number PTB 00 Certification number PTB 00

ATEX 2080; for additional ATEX 2081; for additional ATEX 2081; for additionalcertifications contact sales certifications contact sales certifications contact sales

Group, category, ignitionprotection method II (1) G D [EEx ia] IIC II (1) G D [EEx ia] IIC II (1) G D [EEx ia] IICVoltage Uo 10.5 V 10.6 V 10.6 VCurrent Io 13 mA 19.1 mA 19.1 mAPower Po 34 mW 51 mW 51 mW

Allowable circuit valuesIgnition protection class, category[EEx ia and EEx ib]Explosion group IIA IIB IIC IIA IIB IIC IIA IIB IICExternal capacitance 75µF 16.8µF 2.41µF 72µF 16.2µF 2.32µF 72µF 16.2µF 2.32µFExternal inductance 1000mH 840mH 210mH 780mH 390mH 97mH 780mH 390mH 97mH

Output (not intrinsically safe)Output Signal; Relay Signal; Relay Signal; RelayContact loading 253 V AC / 2 A / cosϕ > 0.7; 253 V AC / 2 A / cosϕ > 0.7; 253 V AC / 2 A / cosϕ > 0.7;

40 V DC / 2 A resistive load 40 V DC / 2 A resistive load 40 V DC / 2 A resistive loadSwitching frequency < 10 Hz < 10 Hz < 10 Hz

NAMUR Proximity sensors


PROXIMITYSENSORS

d.c. V3 Microswitch sensors 3 wire 10-30V

Features�DIN Standard proximity switchesEN 60947-5-2

�NPN or PNP outputs�2m cable or spade terminal typeFaston 4.8mm

�LED indication�Short circuit protection�Reverse polarity protection

Features�DIN Standard proximity switchesEN 60947-5-2

�PNP output only�2m cable or 3-pin M8 plug�LED indication�Short circuit protection�Reverse polarity protection

Connection diagrams

Technical specificationSupply voltage . . . . . . . . . . . .10-30V d.c.Max switching current . . . . . . . . .100mANo load current . . . . . . . . . . . . .≤ 15mAOutput indication . . . . . . . . .LED yellowInstallation . . . . . . . . . . . .Flush mounting

(embeddable)Ambient temperature . . .-25 to +70˚C

Housing material . . . . . . . . . . . . . . .PBTSensing face . . . . . . . . . . . . . . . . . . .PBTConnection type . . . .2m cable or 4.8mm

spade terminalProtection . . . . . . . . . . . . . . . . . . . .IP67

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d.c. F1 Microswitch sensorsTechnical specificationSupply Voltage . . . . . . . . . . . .10-30V d.c.Max switching current . . . . . . . . .200mANo load current . . . . . . . . . . . . .≤ 15mAOutput indication . . . . . . . . .LED yellow

Installation . . . . . . . . . . . .Flush mounting(embeddable)

Ambient temperature . . .-25 to +70˚CHousing material . . . . . . . . . . . . . . .PBTSensing face . . . . . . . . . . . . . . . . . . .PBTConnection type . . . . . . . . . .2m cable or

3-pin M8 plugProtection . . . . . . . . . . . . . . . . . . . .IP67

Sensing Switching Switching Connection Output Order Code Price 1+ Price 5+Distance Current Frequency Type Type2.0mm 100mA 1000Hz Cable (1) PNP NBB2-V3-E2 £23.33 £21.00

2.0mm 100mA 1000Hz Cable (1) NPN NBB2-V3-E0 £23.33 £21.00

2.0mm 100mA 1000Hz Spade Terminal (2) PNP NBB2-V3-E2 -V5 £23.33 £21.00

2.0mm 100mA 1000Hz Spade Terminal (2) NPN NBB2-V3-E0 -V5 £23.33 £21.00

Connection diagrams

Sensing Switching Switching Connection Output Order Code Price 1+ Price 5+Distance Current Frequency Type Type4.0mm 200mA 1400Hz Cable (1) PNP NBB4-F1-E2 £39.85 £35.87

4.0mm 200mA 1400Hz 3-pin M8 PNP NBB4-F1-E2-V3 £39.85 £35.87


M8 straight 3-pin connector 2m PVC V3-GM-2M-PVC £5.68 £5.12

M8 straight 3-pin connector 5m PVC V3-GM-5M-PVC £6.81 £6.13

Microswitch proximity sensors


PROXIMITYSENSORS

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Capacitive proximity sensors - function descriptionThe active component of a capacitiveproximity sensor consists of a disk-shapedsensor electrode and a cup shaped shield(fig. 1). These two electrodes form acapacitor with a base capacitance of CG.The capacitance changes by the amount∆C as a target approaches the sensor(distance~s).

The capacitor is part of an RC generator.It’s output voltage U~ is dependant on theeffective capacitance Ca = CG + ∆Cbetween the sensor electrode and theshield potential.

The RC generator starts to oscillate whenthe distance between the target and thecapacitor falls below a certain value. Theoutput voltage of the generator isdemodulated and filtered after which

background suppression is applied,producing the signal across the output.

This functional principle was furtherdeveloped by integrating the sensorelectrode in a multi-layer-board. In thismanner, the screening and theelectromagnetic compatability were

markedly improved. Thus, thisseries can be fitted directly tometal or connected to eachother. The applicability as “lookthrough” is simple to implementand can, together with thepossibility of fixing using cableconnectors, easily be used forflow monitoring in hoses &synthetic piping.

In capacitive proximity switches, therelative permittivity is the parameter forthe reduction factor. The following tablecontains some typical values for thereduction factor;


Grounded Plate 1Water 1Alcohol 0.75Ceramic 0.6Glass 0.5PVC 0.45Ice 0.3Oil 0.28

Capacitive proximity sensors


PROXIMITYSENSORS

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Metal barrel capacitive sensors 3 wire d.c. PNP output

Features�DIN standard EN 60947-5-2�PNP output�Sensitivity adjustment�2m cable or M12 plug�LED indication�Short circuit protection (pulsing)�Reverse polarity protection

Technical specificationSupply voltage . . . . . . . . .see table belowNo load current . . . . . . . . . . . . .≤ 20mAOutput indication . . . . . . . . .LED yellowInstallation . . . . . . . . . . . .Flush mounting

(embeddable)Ambient temperature . . .-25 to +70˚C

Housing material . . . . . .High grade steelSensing face . . . . . . . . . . . . . . . . . . .PBTConnection type . . . . . .2m PVC cable or

4-pin M12 plugProtection . . . . . . . . . . . . . . . .IP67 (IP65

for CJ4-12GM-E2)

Cables and Connectors

Sensing Switching Switching Housing Supply Order Code Price 1+ Price 5+Distance Current Frequency Dimensions Voltage4mm 200mA 100Hz Cable 10..35V d.c. CJ4-12GM-E2 £70.01 £63.00

8mm 300mA 100Hz Cable 10..30V d.c. CJ8-18GM-E2 £61.54 £55.39

8mm 300mA 100Hz M18 M12 plug 10..35V d.c. CJ8-18GM-E2-V1 £61.13 £55.02

10mm 200mA 100Hz Cable 10..60V d.c. CJ10-GM30-E2 £64.09 £57.69

10mm 200mA 100Hz M18 M12 plug 10..60V d.c. CJ10-GM30-E2-V1 £62.98 £56.69








Varikont capacitive sensors a.c. or d.c. 15mm sensing range

Features�DIN standard EN 60947-5-2�a.c. or d.c. options�a.c. sensors have N/C or N/Oselectable outputs

�d.c. sensors have PNP N/C orN/O outputs

�LED indication�Sensitivity adjustment

Technical specification a.c.Supply voltage . . . . . . . . . . .20-253Va.c.Max switching current . . . . . .10-500mANo load current . . . . . . . . . . . .≤ 2.5mAOutput indication . . . . . . . . .LED yellowInstallation . . . . . . . . . . . .Flush mounting

(embeddable)Ambient temperature . . .-25 to +70˚CHousing material . . . . . . . . . . . . . . .PBTSensing face . . . . . . . . . . . . . . . . . . .PBTConnection type . .Terminal compartmentProtection . . . . . . . . . . . . . . . . . . . .IP65

Technical specification d.c.Supply voltage . . . . . . . . . . . .10-30Vd.c.Max switching current . . . . . . . . .200mANo load current . . . . . . . . . . . . .≤ 20mAOutput indication . . . . . . . . .LED yellowInstallation . . . . . . . . . . . .Flush mounting

(embeddable)Ambient temperature . . .-25 to +70˚CHousing material . . . . . . . . . . . . . . .PBTSensing face . . . . . . . . . . . . . . . . . . .PBTConnection type . .Terminal compartmentProtection . . . . . . . . . . . . . . . . . . . .IP65

Sensing Switching Switching Supply Order Code Price 1+ Price 5+Distance Current Frequency Voltage15mm 200mA 10Hz 10..30V d.c. CJ15+U1+A2 £120.25 £108.23

15mm 500mA 10Hz 20..253V a.c. CJ15+U1+W £211.14 £190.03

Connection diagramsa.c. sensor

Connection diagramsd.c. sensor

Capacitive proximity sensors


PROXIMITYSENSORS

Operating principles and technology of ultrasonic sensorsUltrasonic sensors operate with apiezoelectric transducer as the soundemitter and receiver. A decoupling layer inspecial material is used to decouple theultrasonics to the air - an acousticallythin medium.

This ultrasonic transducer is embedded,watertight, into the sensor housing, inpolyeurothane foam.

The transducer transmits a packet of sonicpulses and converts the echo pulse into avoltage. The integrated controllercomputes the distance from the echo timeand the velocity of the sound. Thetransmitted pulse duration ∆t and thedecay time of the sonic transducer result inan unusable area in which the ultrasonicsensor cannot detect an object. Theutrasonic frequency lies between 65 kHzand 400 kHz, depending on the sensortype; the pulse repetition frequency isbetween 14 Hz and 140 Hz.

The active range of the ultrasonic sensor isreferred to as the sensing range Sd. Thisrange is bounded by the lowest andhighest sensing distances, whose valuesdepend on the characteristics of thetransducer. The highest sensing distance isgiven in the type code.

distance from the sensor S can be calulatedby D= 2 . tan α . S in a good approach.The angle α for a given distance S can betaken out of the charateristic responsecurves in the product data sheets. In theformula above, only the angle betweenthe curve and the centre-line (0º) has tobe inserted (half opening angle).For a simple evaluation of the sound conediameter D, you can use the list below,which shows the tan-values for anglesbetween α=2º and α=20º in 2º intervals.

angle α tan α

2º 0.0354º 0.076º 0.1058º 0.14110º 0.17612º 0.21314º 0.24916º 0.28718º 0.32520º 0.364

Ultrasonic proximity sensors


PROXIMITYSENSORS

The ultrasonic sensor detects objectswithin its sensing range, regardless ofwhether these objects approach thesensor axially or move through the soundcone laterally.

Ultrasonic sensors are available withswitching outputs and/or analogue outputs,various output functions are availableaccording to type.The ultrasonic beam has an opening angleof around ±5º. The sound pressure leveloutside this cone is less than half (-6 dB)that of the value on the sensor axis.

The opening angle defines the spatiallydimension for the sound cone. Thediameter of the sound cone D for a certain

Pepperl & Fuchs metal barrel sensorsAdjusting the switching pointsThe ultrasonic sensor features a switchoutput with two teachable switchingpoints. These are set by applying thesupply voltage -UB or +UB to theTEACH-IN input. The supply voltage mustbe applied to the TEACH-IN input for atleast 1s. LED’s indicate whether the sensorhas recognised the target during theTEACH-IN procedure. Switching point A1is taught with -UB, A2 with +UB.

Five different output functionscan be set1. Window mode, normally-open function2. Window mode, normally-closedfunction

3. One switching point, normally-openfunction

4. One switching point, normally-closedfunction

5. Detection of object presence

Electrical Connection- 4pin connector (pnp)

Electrical Connection- 5pin connector (npn)

Electrical Connection- 5pin connector (pnp)

M12 metal barrel sensors 30 to 400mm sensing range

Dimensions

Technical specificationSensing range . . . . . . . . . . .30... 400mmAdjustment range . . . . . . . .50... 400mmSupply voltage . . . . . . . . . . .10 - 30Vd.c.Output . . . . . . . . . . . . . . . .PNP NO/NCMax output current . . . . . . . . . . .100mASwitching frequency . . . . . . . . . . .≤ 8 HzTeach input . . . . . . .set operating distance

LED indication . .object detection & teachAmbient temperature . . . . .-25... 70º CHousing . . . . . . . . . . .brass, nickel platedTransducer . . . . . .epoxy/glass PBT coverProtection . . . . . . . . . . . . . . . . . . . .IP65Connection . . . . . . . . . . . . . . .M12 4pin

Sensing Housing Switching Switching Output Order Code Price 1+ Price 5+Distance Current Frequency Type

30... 400mm M12 100mA 8Hz PNP UB400-12GM-E5-V1 £134.88 £121.40


Programming tool - UB-PROG2 £45.46 £40.92

M12 straight 4-pin connector 2m PVC V1-G-2M-PVC £5.81 £5.23

M12 straight 4-pin connector 5m PVC V1-G-5M-PVC £7.24 £6.52

M12 right angle 4-pin connector 2m PUR 464020 £5.67 £5.11

M12 right angle 4-pin connector 5m PUR 464050 £6.58 £5.93

M12 straight plug 4-pin No Cable 490011 £4.68 £4.22

M12 right angled plug 4-pin No Cable 490014 £4.83 £4.35

Common Features�Switch output�5 different outputs can be set�TEACH-IN input�Synchronisation options�Deactivation option�Temperature compensation� Insensitive to compressed air



PROXIMITYSENSORS

U

1 (BN)

5 (GY)

2 (WH)4 (BK)

3 (BU)

+ UB

Sync.

Switch output 2

Switch output 1

- UB

U

1 (BN)

2 (WH)

4 (BK)

3 (BU)

+ UB

Teach input

Switch output

- UB

U

1 (BN)

2 (WH)

4 (BK)5 (GY)

3 (BU)

+ UB

Sync.Switch output 2

Switch output 1

- UB

Sensing Housing Switching Switching Output Order Code Price 1+ Price 5+Distance connector Current Frequency Type

30... 500mm M18 200mA 10Hz NPN UB500-18GM75-E4-V15 £142.33 £128.10

30... 500mm M18 200mA 10Hz PNP UB500-18GM75-E5-V15 £142.33 £128.10

30... 500mm M30 200mA 10Hz NPN UB500-30GM-E4-V15 £138.61 £124.75

30... 500mm M30 200mA 10Hz PNP UB500-30GM-E5-V15 £138.61 £124.75

Connectors and accessoriesConfiguration Cable Type Order Code Price 1+ Price 5+



M12 right angle 5 pin connector 2m PUR V15-W-2M-PUR £8.85 £7.97





M18-M30 metal barrel sensors 30 to 500mm sensing range

Dimensions

Dimensions

Technical specificationSensing range . . . . . . . . . . .30... 500mmAdjustment range . . . . . . . .50... 500mmSupply voltage . . . . . . . . . . .10 - 30Vd.c.Output . . . . . . . . .PNP or NPN NO/NCMax output current . . . . . . . . . . .200mASwitching frequency . . . . . . . . . . .10 HzTeach input . . . . . . .set operating distance

LED indication . .object detection & teachAmbient temperature . . . . .-25... 70º CHousing . . . . . . . . . . .brass, nickel platedTransducer . . . . . .epoxy/glass PBT coverProtection . . . . . . . . . . . . . . . . . . . .IP65Connection . . . . . . . . . . . . . . .M12 5-pin

M30 metal barrel sensors 80mm to 2m sensing rangeTechnical specificationSensing range . . . . . . . . . .80... 2000mmAdjustment range . . . . . .120... 2000mmSupply voltage . . . . . . . . . . .10 - 30Vd.c.Output . . . . . . . . .PNP or NPN NO/NCMax output current . . . . . . . . . . .200mASwitching frequency . . . . . . . . . . .3.5 HzTeach input . . . . . . .set operating distance

LED indication . .object detection & teachAmbient temperature . . . . .-25... 70º CHousing . . . . . . . . . . .brass, nickel platedTransducer . . . . . .epoxy/glass PBT coverProtection . . . . . . . . . . . . . . . . . . . .IP65Connection . . . . . . . . . . . . . . .M12 5-pin

Sensing Housing Switching Switching Output Order Code Price 1+ Price 5+Distance connector Current Frequency Type

80... 2000mm M30 200mA 3.3Hz NPN UB2000-30GM-E4-V15 £138.61 £124.75

80... 2000mm M30 200mA 3.3Hz PNP UB2000-30GM-E5-V15 £138.61 £124.75



PROXIMITYSENSORS





Accessories and connectorsConfiguration Cable Type Order Code Price 1+ Price 5+

Programming tool UB-PROG2 £45.46 £40.92



Dimensions

Dimensions

Technical specificationSensing range . . . . . . . . . .60... 2000mmAdjustment range . . . . . . .90... 2000mmSupply voltage . . . . . . . . . . .10 - 30Vd.c.Output . . . . . . . . .PNP or NPN NO/NC

analogue 4... 20mA or 0... 10VTeach input . . . . . . .set operating distanceLED indication . .object detection & teach

Ambient temperature . . . . .-25... 70º CHousing . . . . . . . . . . . . . . . . . . . . . .PBTTransducer . . . . . .epoxy/glass PBT coverProtection . . . . . . . . . . . . . . . . . . . .IP65Connection . . . . . . . . . . . . . . .M12 5-pin

Sensing Switching Switching Output Order Code Price 1+ Price 5+Distance Current Frequency Type

60... 2000mm 200mA 3Hz NPN UB2000-F42-E4-V15 £105.82 £95.24

60... 2000mm 200mA 3Hz PNP UB2000-F42-E5-V15 £97.59 £87.84

60... 2000mm 4... 20mA N/A analogue UB2000-F42-I-V15 £110.70 £99.63

60... 2000mm 0... 10V N/A analogue UB2000-F42-U-V15 £110.70 £99.63

Rectangular ultrasonic sensors - 2m sensingrange with analogue output option

M30 metal barrel sensors 200mm to 4m sensing rangeTechnical specificationSensing range . . . . . . . . .200... 4000mmAdjustment range . . . . . .240... 4000mmSupply voltage . . . . . . . . . . .10 - 30Vd.c.Output . . . . . . . . .PNP or NPN NO/NCMax output current . . . . . . . . . . .200mASwitching frequency . . . . . . . . . . .1.5 HzTeach input . . . . . . .set operating distanceLED indication . .object detection & teach

Ambient temperature . . . . .-25... 70º CHousing . . . . . . . . . . .brass, nickel platedTransducer . . . . . .epoxy/glass PBT coverProtection . . . . . . . . . . . . . . . . . . . .IP65Connection . . . . . . . . . . . . . . .M12 5-pin

Sensing Housing Switching Switching Output Order Code Price 1+ Price 5+Distance Current Frequency Type

200... 4000mm M30 200mA 1.5Hz NPN UB4000-30GM-E4-V15 £152.82 £137.54

200... 4000mm M30 200mA 1.5Hz PNP UB4000-30GM-E5-V15 £152.82 £137.54



PROXIMITYSENSORS

Documents

Proximity Sensor Section[1]