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Inductive sensor NJ2-12GK-SN

Namur proximity sensor

Inductive sensor NJ2-12GK-SN

  • 2 mm flush
  • Usable up to SIL 3 acc. to IEC 61508
  • Degree of protection IP68
  • ATEX-/IECEx-approvals for zone 0/1/20/21 (Ex i)
  • ATEX-/IECEx-approvals for zone 2/22 (Ex ec/tc)
  • Product Detail

Datasheet excerpt: Technical data of  NJ2-12GK-SN

General specifications
Switching function Normally closed (NC)
Output type NAMUR with safety function
Rated operating distance 2 mm
Installation flush
Assured operating distance 0 ... 1.62 mm
Reduction factor rAl 0.4
Reduction factor rCu 0.3
Reduction factor r304 0.85
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 ... 2000 Hz
Suitable for 2:1 technology yes , with reverse polarity protection diode
Current consumption
Measuring plate not detected ≥ 3 mA
Measuring plate detected ≤ 1 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
NAMUR EN 60947-5-6:2000
IEC 60947-5-6:1999
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
TIIS approval on request
Ambient conditions
Ambient temperature -40 ... 100 °C (-40 ... 212 °F)
Mechanical specifications
Connection type cable
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
Material silicone
Core cross section 0.34 mm2
Length 2 m
Dimensions
Length 34 mm
Diameter 12 mm
General information
Use in the hazardous area see instruction manuals

Classifications




System Classcode
ECLASS 13.0 27274101
ECLASS 12.0 27274101
ECLASS 11.0 27272401
ECLASS 10.0.1 27272401
ECLASS 9.0 27272401
ECLASS 8.0 27272401
ECLASS 5.1 27272401
ETIM 9.0 EC002714
ETIM 8.0 EC002714
ETIM 7.0 EC002714
ETIM 6.0 EC002714
ETIM 5.0 EC002714
UNSPSC 12.1 39121550

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