Baomain Capacitive Proximity Sensor LJC18A3-B-J/EZ 1-10mm NO 90-250V

Description

Product Overview

The Baomain LJC18A3-B-J/EZ is a high‑performance capacitive proximity sensor designed for demanding industrial environments. Built with a robust metal, plastic, and alloy housing, the sensor resists corrosion, impact, and the rigors of continuous operation. It operates on a wide AC voltage range of 90‑250 V and supplies a 200 mA normally‑open (NO) output, making it compatible with most PLCs and control systems. The sensor detects both metal and non‑metallic objects within a precise 1‑10 mm distance, thanks to its capacitive detection principle, which measures changes in the electric field around the cylindrical head.

Key physical specifications include an 18 mm diameter head, a compact 7.5 × 3 cm body, and a 120 cm (47 in) cable that provides flexible mounting options. The operating temperature range of –25 °C to +65 °C ensures reliable performance in both cold‑storage facilities and heated manufacturing floors. With a net weight of only 114 g, the sensor is lightweight yet durable, and its plug‑and‑play wiring (brown and blue AC wires) simplifies installation and reduces downtime.

Usage

This sensor excels in a variety of automation scenarios. In conveyor systems, it can detect the presence of metal parts, triggering sorting mechanisms or safety shut‑offs. In robotic workcells, the sensor provides precise object detection for pick‑and‑place operations, ensuring that the robot only engages when a target is within the defined range. It is also suitable for monitoring safety doors, machine housings, and tool changers where reliable detection of metal components is critical.

Because the sensor works on standard AC power, it can be integrated into existing electrical panels without the need for additional transformers or power supplies. Its 200 mA output is sufficient to drive relays, contactors, or indicator lights directly, simplifying wiring diagrams and reducing component count. The sensor’s non‑freezing temperature tolerance makes it a solid choice for outdoor equipment, such as feed‑stock hoppers, metal bin level detection, and environmental monitoring stations.

Why Choose Us

Choosing Baomain means selecting a brand with a proven track record in industrial sensor technology. Each sensor undergoes rigorous quality control testing, including voltage endurance, temperature cycling, and electromagnetic interference assessments, to guarantee consistent performance over the product’s lifespan. The LJC18A3‑B‑J/EZ model benefits from Baomain’s extensive research into capacitive sensing, delivering a sensor that combines high sensitivity with low false‑trigger rates.

Our commitment to customer satisfaction extends beyond the point of sale. We provide comprehensive technical documentation, wiring diagrams, and installation guides to help engineers integrate the sensor quickly. In addition, Baomain offers responsive after‑sales support, including troubleshooting assistance, replacement parts, and warranty coverage that protects your investment.

Environmental responsibility is also a priority. The sensor’s design minimizes material waste, and the alloy and plastic components are selected for recyclability where local regulations permit. By choosing this sensor, you not only gain a reliable component but also support sustainable manufacturing practices.

Key Features

• Precise 1‑10 mm detection range for both metal and non‑metal objects, improving process accuracy.
• Wide AC supply voltage (90‑250 V) eliminates the need for extra power converters.
• 200 mA normally‑open output drives relays and indicators directly, simplifying wiring.
• Durable metal‑plastic‑alloy housing resists impact, corrosion, and temperature extremes.
• Dedicated Baomain technical support and warranty ensure reliable long‑term operation.

FAQ

What types of materials can the sensor detect?

The sensor detects any conductive material, including ferrous and non‑ferrous metals, as well as certain non‑metallic objects that affect the capacitive field, such as water‑filled containers.

Can the sensor be used in a humid or dusty environment?

Yes. The sealed housing protects the internal circuitry from moisture and dust, making it suitable for most indoor industrial settings. For extremely harsh environments, additional protective enclosures can be added.

What is the recommended mounting method?

The sensor can be mounted using standard brackets or adhesive pads. Ensure the sensing face is unobstructed and oriented toward the target for optimal performance.

Is the sensor compatible with PLCs that require a 24 V DC input?

The sensor outputs a 200 mA AC NO signal. To interface with a 24 V DC PLC input, a suitable AC‑to‑DC conversion relay or optocoupler should be used.

How long is the warranty period?

Baomain provides a one‑year limited warranty covering manufacturing defects and performance issues under normal operating conditions.