Serviceline
Serviceline Industrial Sensors
Serviceline Explosion Protection

Capacitive sensor CJ4-12GK-N

CJ4-12GK-N
  • 4 mm non-flush


NAMUR sensors must be operated with approved switch amplifiers. Please find suitable devices below:

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of CJ4-12GK-N

General specifications
Switching functionNormally open (NO)
Output typeNAMUR
Rated operating distance4 mm
Installationnon-flush
Assured operating distance0 ... 2.88 mm
Output type2-wire
Nominal ratings
Installation conditions
A20 mm
B80 mm
C12 mm
F70 mm
Nominal voltage8.2 V (Ri approx. 1 kΩ)
Operating voltage7 ... 12 V
Switching frequency0 ... 1 Hz
Current consumption
Measuring plate not detected≤ 1 mA
Measuring plate detected≥ 2.4 mA
Functional safety related parameters
MTTFd3299 a
Mission Time (TM)20 a
Diagnostic Coverage (DC)0 %
Compliance with standards and directives
Standard conformity
NAMUREN 60947-5-6:2000
IEC 60947-5-6:1999
StandardsEN 60947-5-2:2007
IEC 60947-5-2:2007
Approvals and certificates
FM approval
Control drawing116-0165
UL approvalcULus Listed, General Purpose
CSA approvalcCSAus Listed, General Purpose
CCC approvalCCC approval / marking not required for products rated ≤36 V
Ambient conditions
Ambient temperature-25 ... 70 °C (-13 ... 158 °F)
Mechanical specifications
Connection typecable PVC , 2 m
Core cross-section0.34 mm2
Housing materialPBT
Sensing facePBT
Degree of protectionIP68
Cable
Bending radius> 10 x cable diameter
Equipment protection level Ga
CE marking[*PD-Z02585A*]
ATEX markingEx-Hexagon II 1G Ex ia IIC T6…T1 Ga
The Ex-related marking can also be printed on the enclosed label.
StandardsEN 60079-0:2012+A11:2013, EN 60079-11:2012
Ignition protection "Intrinsic safety"
Use is restricted to the following stated conditions
Appropriate typeCJ4-12GK-N...
Effective internal capacitancemax. 60 nF ; a cable length of 10 m is considered.
Effective internal inductancenegligibly small
A cable length of 10 m is considered.
Highest permissible ambient temperatureDetails of the correlation between the type of circuit connected, the maximum permissible ambient temperature, the temperature class, and the effective internal reactance values can be found on the EU-type examination certificate. Note: Use the temperature table for category 1 !!! The 20 % reduction in accordance with EN 1127-1 has already been applied to the temperature table for category 1.
Equipment protection level Gb
CE marking[*PD-Z02585A*]
ATEX markingEx-Hexagon II 1G Ex ia IIC T6…T1 Ga
The Ex-related marking can also be printed on the enclosed label.
StandardsEN 60079-0:2012+A11:2013, EN 60079-11:2012
Ignition protection "Intrinsic safety"
Use is restricted to the following stated conditions
Appropriate typeCJ4-12GK-N...
Effective internal capacitancemax. 60 nF ; a cable length of 10 m is considered.
Effective internal inductancenegligibly small
A cable length of 10 m is considered.
Maximum permissible ambient temperatureDetails of the correlation between the type of circuit connected, the maximum permissible ambient temperature, the temperature class, and the effective internal reactance values can be found on the EU-type examination certificate.
Equipment protection level Da
CE marking[*PD-Z02585A*]
ATEX markingEx-Hexagon II 1D Ex ia IIIC T135°C Da
The Ex-related marking can also be printed on the enclosed label.
StandardsEN 60079-0:2012+A11:2013, EN 60079-11:2012
Ignition protection "Intrinsic safety"
Use is restricted to the following stated conditions
Appropriate typeCJ4-12GK-N...
Effective internal capacitancemax. 60 nF ; a cable length of 10 m is considered.
Effective internal inductancenegligibly small
A cable length of 10 m is considered.
General information
Use in the hazardous areasee instruction manuals
Category1G; 2G; 1D

Documents: CJ4-12GK-N

Instruction manualsLanguageFile TypeFile Size
Instruction manualENGPDF55 KB
Manuel d'instructionsFRAPDF57 KB
BetriebsanleitungGERPDF58 KB
Manuale di istruzioniITAPDF53 KB
Manual de instruccionesSPAPDF56 KB
Technical information
Installation conditionsENGPDF219 KB
EinbaubedingungenGERPDF345 KB

Approvals+Certificates: CJ4-12GK-N

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-2066APDF176 KB
Certificates
Canada USA CSA Ordinary Location1007121PDF99 KB
Canada USA UL Ordinary Location20170306-E87056PDF407 KB
EU TUV Nord ATEX ia 2G, 1G, 1D s. certificateTÜV 03 ATEX 2003 XPDF10461 KB
Control drawings
Control Drawing FM / Control Drawing FM   PDF686 KB

Associated Products: CJ4-12GK-N

Accessories

Mounting flange, 12 mmfa