Pepperl+Fuchs NJ3-18GK-S1N | M18 Inductive Sensor | 3mm Range | NAMUR Output | IP68

Pepperl+Fuchs NJ3-18GK-S1N | High-Precision Inductive Sensor for Non-Ferrous Metal Detection in Hazardous Environments

Overview

The Pepperl+Fuchs NJ3-18GK-S1N is a high-precision M18 inductive proximity sensor specifically designed for detecting non-ferrous metal targets. With a sensing range of 3 mm, this sensor delivers reliable performance in industrial applications, including hazardous areas. Its robust construction, adherence to safety standards, and suitability for use up to SIL 3 make it an excellent choice for critical automation tasks.

Key Features

• Target Material: Optimized for non-ferrous metals, ensuring accurate detection in specialized applications.

• Sensing Range: Provides a 3 mm sensing distance with flush installation in mild steel (ST37/1.0037).

• Output Type: NAMUR output with a normally open (NO) switching function, compatible with standard intrinsically safe circuits.

• Safety Integrity Level: Suitable for applications requiring up to SIL 3 compliance according to IEC 61508 standards.

• Hazardous Area Approvals: Certified for use in ATEX and IECEx Zone 0/1/20/21 (Ex i) and Zone 2/22 (Ex ec/tc) hazardous locations.

• Environmental Protection: IP68-rated housing ensures durability and resistance to dust and water ingress.

• Temperature Range: Operates effectively in ambient temperatures ranging from -25°C to 100°C (-13°F to 212°F).

• Compact Design: M18 threaded cylindrical housing with a length of 39 mm, facilitating easy integration into various systems.

• Connection: Equipped with a 2-meter silicone cable for flexible installation.

Technical Specifications

• Model Number: NJ3-18GK-S1N

• Switching Function: Normally open (NO)

• Output Type: NAMUR with safety function

• Rated Operating Distance (sn): 3 mm

• Assured Operating Distance (sa): 0 to 2.4 mm

• Actual Operating Distance (sr): Typically 2.7 to 3.3 mm

• Reduction Factors:

  • Aluminum (rAl): 1

  • Copper (rCu): 1

  • Stainless Steel 304 (r304): 0

• Nominal Voltage (Uo): 8.2 V (Ri approximately 1 kΩ)

• Switching Frequency (f): 0 to 200 Hz

• Current Consumption:

  • Target Not Detected: ≤ 1 mA

  • Target Detected: ≥ 3 mA

• Housing Material: Crastin (PBT), black

• Sensing Face Material: Crastin (PBT), black

• Degree of Protection: IP68

• Cable Specifications:

  • Diameter: 6.8 mm ± 0.2 mm

  • Material: Silicone

  • Core Cross Section: 0.75 mm²

  • Length: 2 meters

• Dimensions:

  • Length: 39 mm

  • Diameter: 18 mm

• Certifications:

  • IECEx Approvals: Equipment protection levels Ga, Gb, Gc (ec), Da, Dc (tc), Mb

  • ATEX Approvals: Equipment protection levels Ga, Gb, Gc (ec), Da, Dc (tc)

  • UL Approval: cULus Listed for General Purpose and Hazardous Locations

  • CCC Approval: Certified for hazardous locations

Applications

• Chemical Processing: Reliable detection of non-ferrous metal components in hazardous chemical environments.

• Oil and Gas Industry: Suitable for use in explosive atmospheres, ensuring safe operation in drilling and refining applications.

• Pharmaceutical Manufacturing: Precise detection in cleanroom environments where non-ferrous materials are prevalent.

• Food and Beverage Industry: Ideal for applications requiring sensors with high ingress protection and resistance to cleaning agents.

• Automotive Manufacturing: Accurate detection of aluminum and other non-ferrous parts in assembly lines.

Why Choose Pepperl+Fuchs NJ3-18GK-S1N?

• Specialized Detection: Engineered specifically for non-ferrous metal targets, providing accurate and reliable performance.

• High Safety Standards: Compliance with SIL 3 and multiple hazardous area certifications ensures suitability for critical applications.

• Robust Construction: IP68-rated housing and wide operating temperature range offer durability in harsh environments.

• Compact and Versatile: M18 form factor with flush mounting capability allows easy integration into various industrial setups.

• Trusted Brand: Pepperl+Fuchs is renowned for high-quality sensors and automation solutions, ensuring reliability and support.

Order Now

Available for immediate shipping worldwide. 

NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply