E3JK-R4M1 OMRON Retroreflective Photoelectric Switch Sensor w Reflector 4M

OMRON E3JK-R4M1 Retroreflective Photoelectric Switch Sensor w Reflector 4M

Product Description:

The OMRON E3JK-R4M1 is a versatile photoelectric sensor designed for reliable detection and measurement applications in industrial automation environments. This robust sensor utilizes modulated infrared light technology to provide accurate and stable detection of objects regardless of surface color, texture, or material. The sensor features a built-in amplifier with adjustable sensitivity, making it suitable for various applications including conveyor systems, packaging machinery, and material handling equipment.

This photoelectric sensor operates on the diffuse reflective principle, meaning both the transmitter and receiver are housed in the same unit, simplifying installation and alignment. The sensor detects objects by measuring the amount of light reflected back from the target surface. The E3JK-R4M1 is equipped with a red LED light source that provides visible beam indication, facilitating easy setup and alignment. The housing is constructed with durable materials that provide resistance to industrial chemicals, oils, and mechanical impact.

The sensor features both light-on and dark-on operation modes, selectable via a switch on the unit. The compact design and built-in cable strain relief make it ideal for applications where space is limited. The bright LED status indicators provide clear visual feedback of the operating state and detection status, enabling quick troubleshooting and maintenance.

Technical Specifications:

General Specifications: The E3JK-R4M1 is a diffuse reflective photoelectric sensor with built-in amplifier. The sensing distance is 4 meters maximum for standard targets. The light source is a modulated infrared LED with wavelength of 880nm. The beam type is visible red light for easy alignment. The response time is 1ms maximum.

Power Requirements: The operating voltage range is 12-24V DC ±10% or 24-240V AC ±10% at 50/60Hz. The current consumption is 40mA maximum for DC models and 15mA maximum for AC models. The residual voltage is 3V maximum for DC models and 8V maximum for AC models. The voltage drop is 2V maximum.

Output Characteristics: The output type is NPN transistor output for DC models and relay contact output for AC models. The maximum load current is 100mA for DC models and 3A at 250V AC for AC models. The leakage current is 0.1mA maximum. The output configuration is selectable between light-on/dark-on operation.

Environmental Specifications: The operating temperature range is -25°C to +55°C. The storage temperature range is -40°C to +70°C. The humidity resistance is 35% to 95% relative humidity non-condensing. The protection rating is IP67 (IEC standard) making it dust-tight and protected against temporary immersion. The vibration resistance is 10-55Hz with 1.5mm double amplitude. The shock resistance is 500m/s² in three axes.

Optical Performance: The standard detection object is opaque materials with minimum detectable object size of 30mm at maximum sensing distance. The sensitivity adjustment is via potentiometer with 20-turn adjustment range. The ambient light immunity is 10,000 lux maximum for sunlight and 3,000 lux maximum for incandescent light. The hysteresis is 15% maximum of sensing distance.

Mechanical Specifications: The housing material is ABS resin with nickel-plated brass sensing face. The cable length is 2 meters standard with PVC cable jacket. The cable diameter is 4.5mm with 4 cores. The weight is approximately 150g. The dimensions are 50mm x 30mm x 15mm (L x W x H).

Connection and Wiring: The wiring connection uses color-coded cables: brown for power positive, blue for power negative, black for output, and white for control line. The cable features built-in strain relief and is oil-resistant. The recommended wire size is 0.3-1.5mm². The connection method is direct cable connection with no connector required.

Adjustment and Calibration: The sensitivity adjustment uses a 20-turn potentiometer for fine tuning. The sensor features stable operation indicator LED and output status indicator LED. The alignment is facilitated by the visible red beam and sensitivity scale markings.

Certifications and Standards: The sensor meets CE marking requirements. It complies with UL standards and cULus listings. The EMC compatibility meets EN 60947-5-2 standards. The product is RoHS compliant and meets WEEE directives.

Application Guidelines: The sensor is suitable for detecting various materials including metal, plastic, wood, and paper. The maximum sensing distance may vary based on target color and surface finish. For best performance, the target should be larger than the beam spot size. Regular cleaning of the lens is recommended for maintained performance.

Installation Requirements: The sensor can be mounted using two M4 mounting holes with recommended torque of 0.8N·m. The sensing distance should maintain a 5-10% margin from the maximum rated distance. The sensor should be protected from direct sunlight and other strong light sources interfering with the beam.

Disclaimer: This information is provided for reference purposes only. For complete specifications and installation guidelines, consult the official OMRON documentation. Installation and operation must be performed by qualified personnel following all safety regulations. Specifications are subject to change without notice.

FAQ & Contact:

Q: Are you a trading company or a manufacturer?

A: We are a trading company.

Q: What is your lead time?

A: It usually takes one to three days if we have it in stock. If the goods are not in stock, you need to negotiate.

Q: Does your company provide samples? Is it free or do you charge extra?

A: It depends on the goods you need and the quantity you order.

Q: What are your terms of payment?

A: 100%  T/T before shipping. If the quantity is large, we can negotiate.

Our Company:

As a professional PLc DcS spare parts supplier, Online Union Trade Co., Ltd has been in the automationindustry for nearly 13 years. Our products are including Allen Bradley, Bently Nevada, ABB, GE Fanuc,Honeywell, Triconex, Foxboro, Bachmann, ICS Triplex, Hima, Prosoft,PRO-FACE,FESTO,LENZE,KEYENCE...etc

Our Services:

1,All our products are new and original, and of good quality.

2,Our prices are very competitive.

3,We have a large quantity in stock, so we could help the customers to get the components which are difficult to get.

4,All inquiries will be valued and will reply in 24

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