Aotoro ER-D20C4 Photoelectric Sensor 20cm Diffuse Reflective Plastic Type 12-24VDC
Aotoro ER-D20C4 Photoelectric Sensor 20cm Diffuse Reflective Plastic Type 12-24VDC - Image 2
SKU: SENS-1693
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Aotoro ER-D20C4 Photoelectric Sensor 20cm Diffuse Reflective Plastic Type 12-24VDC

₹639.00 (Inclusive of all taxes)
Out of Stock

The Aotoro ER-D20C4 is a compact 18mm diffuse reflective photoelectric sensor designed for 12-24VDC industrial control systems, PLCs, and automation projects. It provides reliable detection of opaque, translucent, and transparent objects up to 20cm with a fast 1ms response time and selectable Light ON/Dark ON logic.

Features

  • Compact 18mm diameter ABS plastic housing for space-constrained installations.
  • Diffuse reflective sensing mode with a reliable detection range up to 20cm.
  • Wide operating voltage range of 10-30VDC with reverse polarity and surge protection.
  • Fast 1ms response time for high-speed counting and object detection applications.
  • IP64/IP67 environmental protection rating for reliable operation in dusty or damp conditions.

Out of stock

Description

The Aotoro ER-D20C4 photoelectric sensor operates on the diffuse reflective principle, where the built-in emitter and receiver are housed in the same unit. It projects an infrared or red LED light beam; detection occurs when the beam reflects off a target object back to the receiver. This design simplifies installation by eliminating the need for a separate reflector or receiver unit.

Engineered for industrial durability, the sensor features a robust circuit with integrated protection against short circuits, reverse polarity, and electrical surges. Its ABS plastic housing and IP64/IP67 sealing ensure reliable performance across a broad operating temperature range from -25°C to +60°C, making it suitable for challenging factory floor and automation environments.

Key Features

  • Compact 18mm cylindrical ABS plastic housing for easy integration into machinery.
  • Diffuse reflective sensing type for direct object detection without a separate reflector.
  • Selectable Light ON (NO) or Dark ON (NC) operation via wiring configuration.
  • Infrared or red LED light source options for different material sensing optimizations.
  • Fast response time of 1ms maximum for high-speed automation and counting tasks.
  • Wide 10-30VDC operating range compatible with standard 12V and 24V industrial power supplies.
  • Integrated protection circuits against short-circuit, reverse polarity, and surge events.
  • IP64/IP67 environmental rating provides dust and water resistance for harsh conditions.

Applications

  • Object detection and counting on conveyor belts in packaging and assembly lines.
  • Presence sensing for transparent bottle or container detection in filling machines.
  • Position verification and limit switching in automated guided vehicles (AGVs) and robotics.
  • Jam detection and material handling in printing, textile, and woodworking machinery.
  • Level sensing for opaque and translucent materials in hoppers and storage bins.

Technical Specifications

Model NumberER18A-D20C4 (ER-D20C4)
Operating Voltage10 - 30 VDC
Detection RangeUp to 20 cm
Current Consumption15 mA (typical)
Sensing TypeDiffuse Reflective
Light SourceInfrared or Red LED
Output LogicLight ON / Dark ON Selectable
Response TimeMax. 1 ms
Housing MaterialABS Plastic
Protection RatingIP64 / IP67
Operating Temperature-25°C to +60°C
Operating Humidity35% to 85% RH (non-condensing)
Dimensions (L x W)45 mm x 20 mm (Diameter: 18 mm)
Weight80 g

Frequently Asked Questions

What is the difference between Light ON and Dark ON operation mode?

Light ON (Normally Open) means the sensor's output switch closes (turns ON) when an object is detected within its beam. Dark ON (Normally Closed) means the output switch is normally closed and opens when an object is detected. The mode is selected by wiring the sensor's output wires according to the datasheet diagram for your required logic.

Can this sensor detect transparent materials like glass or clear plastic?

Yes, the ER-D20C4 can be configured for detecting transparent objects. Using the red LED version can improve detection of certain transparent materials. Optimal detection may require fine-tuning the sensor's alignment and sensitivity, as some highly transparent materials may reflect minimal light.

What is the wiring configuration for the 3-wire DC sensor?

The sensor typically has three wires: Brown (VDC+), Blue (VDC- / GND), and Black (Output). Connect Brown to your positive DC supply (10-30V), Blue to the negative/common ground. The Black output wire provides a switched signal (NPN or PNP, depending on model variant) to your PLC, relay, or controller input.

Is this sensor suitable for outdoor use?

While the IP64/IP67 rating provides protection against dust and water jets, it is not submersible or rated for continuous heavy rain. For outdoor use, additional protective housing or mounting under an eave is recommended to prevent direct, prolonged water exposure and UV degradation.

Package Includes

  • 1 x Aotoro ER-D20C4 Photoelectric Sensor

Additional Information

Weight 0.08 kg
Dimensions 4.5 × 2 cm

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