Pepperl Fuchs Inductive sensor NJ3-18GK-S1N-5M

Nonferrous targets

3 mm flush in ST37 / 1.0037

Usable up to SIL 3 acc. to IEC 61508

Degree of protection IP68

ATEX & IECEX certifications

ATEX/IECEx Zone 2/22

General specifications

Switching function    Normally open (NO)

Output type    NAMUR with safety function

Rated operating distance    3 mm

Installation    flush in mild steel

Assured operating distance    0 ... 2.4 mm

Actual operating distance    2.7 ... 3.3 mm typ.

Reduction factor rAl    1

Reduction factor rCu    1

Reduction factor r304    0

Safety Integrity Level (SIL)    up to SIL3 acc. to IEC 61508 Danger! In safety-related applications the sensor must be operated with a qualified fail safe interface from Pepperl+Fuchs, such as KFD2-SH-EX1.

Consider the "exida Functional Safety Assessment" document which is available on www.pepperl-fuchs.com as an integral part of this product's documentation.

Output type    2-wire

Nominal ratings

Nominal voltage    8.2 V (Ri approx. 1 kΩ)

Switching frequency    0 ... 200 Hz

Current consumption    

Measuring plate not detected    ≤ 1 mA

Measuring plate detected    ≥ 3 mA

Functional safety related parameters

Safety Integrity Level (SIL)    SIL 3

MTTFd    10660 a

Mission Time (TM)    20 a

Diagnostic Coverage (DC)    0 %

Compliance with standards and directives

Standard conformity    

Standards    EN IEC 60947-5-2

Approvals and certificates

IECEx approval    

Equipment protection level Ga    IECEx PTB 11.0092X

Equipment protection level Gb    IECEx PTB 11.0092X

Equipment protection level Gc (ec)    IECEx TUR 21.0017X

Equipment protection level Da    IECEx PTB 11.0092X

Equipment protection level Dc (tc)    IECEx TUR 21.0018X

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 (ec)    TÜV 20 ATEX 8523 X

Equipment protection level Da    PTB 00 ATEX 2049 X

Equipment protection level Dc (tc)    TÜV 20 ATEX 8524 X

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    -25 ... 100 °C (-13 ... 212 °F)

Mechanical specifications

Connection type    cable

Housing material    Crastin (PBT), black

Sensing face    Crastin (PBT), black

Degree of protection    IP68

Cable    

Cable diameter    6.8 mm ± 0.2 mm

Bending radius    > 10 x cable diameter

Material    silicone

Core cross section    0.75 mm2

Length    5 m

Dimensions    

Length    39 mm

Diameter    18 mm

Note    only for non-ferrous metal