Download - Welotec

M18 cylindrical capacitive 

Sensor C18 

Welotec GmbH 

Zum Hagenbach 7 • D-48366 Laer 

www.welotec.com • info@welotec.com 

Fon: +49 (0)2554/9130-00 • Fax: +49 (0)2554/9130-10

2/3 

Products 

capacitive 

cylindrical 

Series 

C18 

capacitive 

cylindrical 

market sectors and applications 

plastic industry 

chemical & petrochemical industry 

wood industry 

photovoltaic installations 

glass & ceramic industry 

packaging industry 

logistic & automatic storage systems 

automatic breeding systems 

automatic car washing systems 

pools & whirlpool baths 

vending machines

features 

DC or AC supply voltage 

High noise immunity 

Shielded and unshielded models 

Adjustable sensitivity 

Plastic housing 

approvals 

protection degree 

IP67

4/5 

Products 

capacitive 

cylindrical 

M18 cylindrical capacitive Sensor C18 

C18 capacitive Proximity Sensors are made in a M18 polyester threaded housing. Their high technology 

can grant a high noise immunity. 

Output indication is activated through yellow LED. SCR output is normally closed or normally open. 

2 mt. long cable or M12 plug models are available. All sensors have an IP67 protection degree. 

pack content 

Instruction manual (English + Italian): CAT8BCT1259401 

further commercial and technical documents available 

Datasheet (Italian: CAT3ICQ1261643 and Spanish: CAT3SCQ1261645) 

High resolution pictures 

Application notes: 

- position detection of buckets, dumpers, loadersin diggers (English: CAT3E001261620, 

Italian: CAT3I001261619 & Spanish: CAT3S001261621) 

- detection of food in automatic mangers (English: CAT3E001261623, Italian: CAT3I001261622, 

& Spanish: CAT3S001261624) 

- water level detection in whirlpool baths (English: CAT3E001261626, Italian: CAT3I001261625 


- soaps and waxes level in automatic washing systems (English: CAT3E001261629, 

Italian: CAT3I001261628, & Spanish: CAT3S001261630) 

- water level detection in automatic washing systems (English: CAT3E001261632, 


- goods detectioninside boxes (English: CAT3E001261635, Italian: CAT3I001261634 


- freeze-dried products detection in vending machines (English: CAT3E001261638, 


- photovoltaic panles presence and position detection (English: CAT3E001261641, 


custom models already tested 

- 

minimum quantity that can be ordered 

1 piece

code description 

C 

18 P / B P - 1 

E 

C 

18 

P 

B 

A 

C 

P 

N 

0 

1 

2 

E 

A 

Capacitive sensor 

M18 housing 

Plastic housing 

NO + NC complementary output 

NO output 

NC output 

PNP logic 

NPN logic 

SCR output 

3...8 mm shielded models 

3...12 mm unshielded models 

M12 plug exit 

2 m cable exit 

available models 

supply 

NPN 

PNP 

installation distance connections 

NO 

NO+NC 

NO+NC 

NC 

shielded 

3...8 mm 

2 m cable 

C18P/BN-1A 

C18P/BP-1A 

- 

- 

10...40 Vdc 

M12 plug 

C18P/BN-1E 

C18P/BP-1E 

- 

- 

unshielded 

3...12 mm 

2 m cable 

C18P/BN-2A 

C18P/BP-2A 

- 

- 

M12 plug 

C18P/BN-2E 

C18P/BP-2E 

- 

- 

20...250 Vca 

shielded 3...8 mm 

2 m cable 

M12 plug 

- 

- 

- 

- 

C18P/A0-1A 

C18P/A0-1E 

C18P/C0-1A 

C18P/C0-1E 

unshielded 3...12 mm 

2 m cable 

M12 plug 

- 

- 

- 

- 

C18P/A0-2A 

C18P/A0-2E 

C18P/C0-2A 

C18P/C0-2E

6/7 

Products 

capacitive 

cylindrical 

technical specifications 

according to IEC EN 60947-5-2 and IEC EN 60947-5-7 

models 

C18P/**-1* 

C18P/**-2* 

nominal sensing distance Sn 

differential travel H 

8 mm 

≤ 20% 

12 mm 

repeat accuracy 

rated operational voltage Ue 

max ripple content 

no-Load supply current 

load current 

leakage current 

output voltage drop Ud 

output type 

switching frequency f 

time delay before availability 

supply electrical protections 

output electrical protections 

sensitivity adjustment 

storage temperature 

operating temperature 

thermal drift 

EMC compatibility 

protection degree 

LED indicators 

housing material 

active head material 

weight 

5% 

10 ... 40 Vdc or 20 ... 250 Vac 

≤ 10 % 

≤ 10 mA 

≤ 200 mA (dc models), ≤ 500 mA; max. 2,5 A max. 20 ms (ca models) 

≤ 10 µA 

2,5 Vmax @ IL= 200 mA (dc models), ≤ 10 VAC @ IL ≥ 20 mA (ca models) 

NPN or PNP - NO or NC; SCR - NO or NC 

30 Hz (dc models); 10 Hz (ca models) 

≤ 100 ms 

polarity reversal, impulsive overvoltage 

autoreset short circuit, overvoltage (dc models) 

yes 

-40 ... +85° C 

-25 ... +80° C (without freeze) 

≤ 20 % 

following the provisions of directives CE 2004/108/CE according to EN 60947-5-2 

IP67 (EN 60529) NEMA 1,3,4,6,13 

yellow (output status Lon/Don) 

thermoplastic polyester 

polyester 

30 g (M12) / 110 g (cable)

3 Bu 1 Bn 

3 Bu 

-/~ -/~ 

+ 

1 Bn 

+ 

3 Bu 

31 Bu Bn 

-/~ 

-+ 

C 

C 

D 

2 Wh 

4 Bk 

13 Bn Bu 

2 Wh 

4 Bk 

1 Bn 

3 Bu 

2 Wh 

4 Bk 

+ 

- 

+ 

- 

Teach & N.O - N.C. 

Normal Operation 

Analog Output 

+ - 



Analog Output 

+ 

- 

M12 

M12 

BN 

BU 

BK 

WH 

brown 

blue 

black 

white 

2 Wh 

4 Bk 

13 Bn Bu 

2 Wh 

4 Bk 

1 Bn 

3 Bu 

2 Wh 

Analog Output 

+ - 

PNP models NO/NC + analogue output 

C 

2 Wh 

4 Bk 

Digital Output 

13 Bn Bu 

+ 

2 Wh 

- 

+ - 



4 Bk 


Analog Output electrical diagrams of 

Analog 

connections 

Output 

1 Bn 

+ 

+ 

3 Bu 

- 

- 

4 Bk 

Double Digital Output 

Analog Output 

NPN models 

models with PNP double digital outputs 

2 Wh 

4 Bk 


Digital out 

NO 

Supply (+) 

Ground 

connection 

D4 

1 

E 

E 

3 

2 

13 Bn Bu 

Supply (-) 

2 Wh 

41 Bk Bn 

+ - 

C18*/ *P-*E 


- Teach & N.O - N.C. 

23 Wh Bu 

- 

+ Normal Operation 

Digital out 

4 NC Bk 

Analog Output 

13 Bn Bu 

2 Wh 

4 Bk 

1 Bn 

3 Bu 

Supply (~) 


- 

+ 

+ - 



Analog Output 

C18*/ *N-*E 

+ 

C18*/ *0-*E 

+ 

- 

13 Bn Bu 

+ - 


2 Wh 

41 Bk Bn 

+ 

NO 

32 Bu Wh 

4 Bk 

NC 

- 

check + 

check - 

13 Bn Bu 

+ - 

AC - NO/NC selectable models 

2 Wh 

check + 

4 Bk 

check - 

1 Bn 

~ 

3 Bu 

- 

D 

E 

13 Bn Bu 

24 Wh Bk 

4 

2 

Bk 

Wh 

1 Bn 

3 Bu 

2 Wh 

4 Bk 

1 Bn 

13 Bn Bu 

2 Wh 

2 Wh 

4 Bk 

4 Bk 

3 Bu 

3 Bu 

+ - 

NO NC 

Analog Output 


+ 


- 


+ 

+ - 

- Teach & N.O - N.C. 

+ Normal Operation 


Analog Output 

- 

- 

Supply (~) 

F 

4 Bk 

13 Bn Bu 


+ - 

2 Bu 


~ 

1 Bn 

+ 

F 

4 Bk 


F 

4 Bk 


3 Bu 

- 

3 Bu 

- 

dimensions 

C30*/**-*E (plug exit) 

C30*/**-*A (cable exit) 

ø 18 

ø 18 

ø 18 

trimmer 

LED 

8 

8 52.3 

6 

45.5 22.8 

69.3 14.2 

plug 

exit 

trimmer 

LED 

8 

ø 10 

8 52.3 

6 

46.5 25 

71.5 15.5 

plug 

exit 

2,000 

mm 

ø 5.2

Bustius quidit alisto volupid min naturi 

Our entire program is available on the Internet at www.welotec.com 

Welotec GmbH 

Zum Hagenbach 7 • D-48366 Laer • Fon: +49 (0)2554/9130-00 

Fax: +49 (0)2554/9130-10 • info@welotec.com

Download - Welotec

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