Pepperl Fuchs NJ2-12GK-SN Users Guide

17

M12 x 1

4 4

30.5

35

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

Dimensions

Inductive sensor

NJ2-12GK-SN

2 mm flush

<

Usable up to SIL 3 acc. to IEC 61508

<

ATEX approval Ex-i and Ex-nA/tc for zone 0-2 and zone 20-22

<

Degree of protection IP68

<

Technical Data

General specifications

Switching function Normally closed (NC)

Output type NAMUR with safety function

Rated operating distance s

Installation flush

Assured operating distance s

Reduction factor rAl 0.4

Reduction factor rCu 0.3

Reduction factor r

Safety Integrity Level (SIL) up to SIL3 acc. to IEC 61508 Danger! In safety-related applications the sensor must

Output type 2-wire

Nominal ratings

Nominal voltage U

Switching frequency f 0 ... 2000 Hz

Suitable for 2:1 technology yes , with reverse polarity protection diode

Release date: 2020-12-15 Date of issue: 2020-12-15 Filename: 250925_eng.pdf

0.85

304

2 mm

n

0 ... 1.62 mm

a

be operated with a qualified fail safe interface from Pepperl+Fuchs, such as KFD2-SH­EX1.
Consider the "exida Functional Safety Assessment" document which is available on
www.pepperl-fuchs.com as an integral part of this product's documentation.

8.2 V (Ri approx. 1 kΩ)

o

1

Inductive sensor NJ2-12GK-SN

Germany: [phone]Pepperl+Fuchs Group

Refer to "General Notes Relating to Pepperl+Fuchs Product Information".

USA: [phone] Singapore: [phone]

www.pepperl-fuchs.com [e-mail] [e-mail]

[e-mail]

Technical Data

Current consumption

Measuring plate not detected ≥ 3 mA

Measuring plate detected ≤ 1 mA

Functional safety related parameters

Safety Integrity Level (SIL) SIL 3

MTTF

d

Mission Time (TM) 20 a

Diagnostic Coverage (DC) 0 %

Compliance with standards and directives

Standard conformity

NAMUR EN 60947-5-6:2000

Standards EN 60947-5-2:2007

Approvals and certificates

IECEx approval

Equipment protection level Ga IECEx PTB 11.0092X

Equipment protection level Gb IECEx PTB 11.0092X

Equipment protection level Da IECEx PTB 11.0092X

Equipment protection level Mb IECEx PTB 11.0092X

ATEX approval

Equipment protection level Ga PTB 00 ATEX 2049 X

Equipment protection level Gb PTB 00 ATEX 2049 X

Equipment protection level Gc (nA) PF15CERT3754X

Equipment protection level Da PTB 00 ATEX 2049 X

Equipment protection level Dc (tc) PF15CERT3774X

EAC conformity TR CU 012/2011

FM approval

Control drawing 116-0165

UL approval cULus Listed, General Purpose

Ordinary Location E87056

Hazardous Location E501628

Control drawing 116-0454

CCC approval

Hazardous Location 2020322315002308

NEPSI approval

NEPSI certificate GYJ16.1392X

Ambient conditions

Ambient temperature -40 ... 100 °C (-40 ... 212 °F)

Mechanical specifications

Connection type cable silicone , 2 m

Core cross-section 0.34 mm

Housing material Crastin (PBT), black

Sensing face Crastin (PBT), black

Degree of protection IP68

Cable

Cable diameter 4.8 mm ± 0.2 mm

Bending radius > 10 x cable diameter

General information

Use in the hazardous area see instruction manuals

10660 a

IEC 60947-5-6:1999

EN 60947-5-2/A1:2012
IEC 60947-5-2:2007
IEC 60947-5-2 AMD 1:2012

2

Release date: 2020-12-15 Date of issue: 2020-12-15 Filename: 250925_eng.pdf

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