SKU: SENS-2319
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Pro-Range CRJ-A18-8APB Capacitive Proximity Sensor PNP M18 Thread 8mm Detection

₹1,169.00 (Inclusive of all taxes)
Out of Stock

The Pro-Range CRJ-A18-8APB is an M18-threaded capacitive proximity sensor with an 8mm detection range and PNP output, designed for non-contact detection of non-metallic objects in industrial automation systems compatible with PLCs and 10-30V DC control circuits.

Features

  • Capacitive sensing principle for detecting non-metallic objects (plastics, liquids, powders).
  • PNP (sourcing) output compatible with PLCs and standard 10-30V DC industrial control systems.
  • M18 x 1 metric thread for easy panel or bracket mounting.
  • 8mm nominal detection distance with sensitivity adjustment for precise tuning.
  • Features built-in polarity and short-circuit protection for robust operation.

Out of stock

Description

The CRJ-A18-8APB capacitive proximity sensor operates by detecting changes in capacitance caused by the presence of a target object within its 8mm sensing field. This non-contact method is ideal for detecting materials like plastics, glass, liquids, and granular substances where inductive sensors would fail. The sensor outputs a PNP (sourcing) signal, switching the load to the positive supply rail upon detection.

Housed in a durable M18-threaded barrel, the sensor is built for industrial environments. It incorporates a dedicated IC for enhanced noise immunity and stability, along with an LED status indicator for visual confirmation of its operational state. Its design ensures reliable performance in applications involving material level control, object counting, and positioning within automated machinery.

Key Features

  • Capacitive sensing technology for non-metallic object detection.
  • PNP (sourcing) transistor output for direct PLC input compatibility.
  • M18 x 1 standard industrial threaded housing.
  • 8mm adjustable detection distance with sensitivity potentiometer.
  • Integrated polarity and short-circuit protection circuits.
  • Red LED provides clear visual indication of detection status.
  • Operates on a wide 10-30V DC supply voltage range.
  • High reliability and long operational life for continuous industrial use.

Applications

  • Level monitoring of non-metallic materials in tanks, hoppers, and silos (e.g., plastic pellets, grain, liquids).
  • Object detection and counting on packaging and assembly lines for plastic, glass, or cardboard items.
  • Presence verification of containers or products in food, beverage, and pharmaceutical automation.
  • Position and limit switching in automated machinery handling insulating materials.
  • Material presence detection in printing, textile, and chemical processing equipment.

Technical Specifications

Model NumberCRJ-A18-8APB
Brand / OEMPro-Range
Sensor TypeCapacitive Proximity
Output TypePNP (Sourcing)
Detection Distance8 mm
Thread SizeM18 x 1
Supply Voltage10-30V DC
Output Current≤ 200 mA
IndicatorRed LED
ProtectionPolarity & Short-Circuit
Housing MaterialMetal (Nickel-plated Brass)
Shipping Weight0.03 kg
Shipping Dimensions15 × 10 × 5 cm

Frequently Asked Questions

What types of materials can this capacitive sensor detect?

The CRJ-A18-8APB is designed to detect non-metallic objects such as plastics, glass, wood, liquids, powders, and granular materials. It senses changes in capacitance caused by the dielectric properties of the target, making it unsuitable for purely metallic detection, which is the domain of inductive sensors.

How do I wire the PNP output of this sensor to a PLC?

Connect the sensor's brown wire to the positive DC supply (10-30V), the blue wire to the DC common (0V), and the black wire (PNP output) to your PLC's digital input. The PLC input's common should also be connected to 0V. When the sensor detects an object, the black wire will source current to the PLC input, signaling a HIGH state.

Can the 8mm detection distance be adjusted?

Yes, this sensor features a sensitivity adjustment potentiometer. Turning the potentiometer allows you to fine-tune the sensing field, effectively adjusting the detection distance within the nominal 8mm range. This is useful for ignoring background objects or for detecting specific material types at varying distances.

What is the operating voltage range, and does it have protection?

The sensor operates on a wide 10-30V DC supply. It includes built-in polarity protection, preventing damage if the power wires are accidentally reversed, and short-circuit protection on the output, safeguarding the sensor if the output is directly shorted to ground or supply.

Package Includes

  • 1 x Pro-Range CRJ-A18-8APB Capacitive Proximity Sensor

Additional Information

Weight 0.03 kg
Dimensions 15 × 10 × 5 cm