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
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Pepperl Fuchs Inductive Sensor NJ3-18GK-S1N-5M ATEX/IECEx Zone 2/22 Images
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