Maintenance teams planning replacements for PR18-8AO frequently review Autonics Photoelectric Sensor, Contrinex Proximity Sensor and Autonics Tcn4 Series to prevent downtime, checking availability and compatibility with existing systems.
Autonics PR18-8AO Proximity Sensor
The Autonics PR18-8AO Proximity Sensor provides an 8mm sensing distance with Normally Open output and a durable M18 sensing side diameter for accurate metal detection performance. Manufactured by Autonics, this proximity sensor from the PR Series ensures reliable operation with hysteresis max. 10 of sensing distance and a standard sensing target 25Γ25Γ1mm (iron). It functions on an AC 2-wire type 100β240VAC~ supply, supports up to 20Hz response frequency, and offers strong IP67 protection for industrial environments.
| Brand | Autonics |
| Product Type | Proximity Sensor |
| Model Number | PR18-8AO |
Autonics PR18-8AO Proximity Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Sensing side diameter | M18 |
| Sensing distance | 8mm |
| Hysteresis(distance) | Max. 10% of sensing distance |
| Standard sensing target | 25Γ25Γ1mm(iron) |
| Current specification | Leakage current: Max. 2.5mA |
| Control output | Normally Open |
| Wire type and power | AC 2-wire type100-240VAC~ |
| Installation | Non-flush |
| Cable Standard/material | Standard cable |
| Body length | Standard type |
| Insulation type | Double insulation or reinforced insulation(mark: @(INS), dielectric strength between the measuring input part and the power part: 1kV) |
| Residual voltage | Max. 10V |
| Environment_Ambient temperature | -25 to 70β, storage: -30 to 80β |
| Environment_Ambient humidity | 35 to 95% RH, storage: 35 to 95% RH |
| Protection structure | IP67(IEC standard) |
| Material | Brass(nickel plated) |
| Response frequency | 20Hz |
| Weight | Approx. 130g(approx. 118g) |
The Autonics PR18-8AO Proximity Sensor from the Autonics PR Series is a reliable AC 2-wire inductive sensor designed to detect metal objects without contact. Featuring an 8 mm sensing range, 100β240 VAC power supply, and Normally Open output, it ensures stable operation and accurate detection. With its IP67-rated housing and nickel-plated brass construction, it withstands dust, vibration, and oil exposure. The Autonics PR18-8AO Proximity Sensor provides consistent performance in automation applications where extended sensing distance and AC operation are critical.
In industrial automation and control systems, the Autonics PR18-8AO Proximity Sensor is widely used for metal detection, machine positioning, and conveyor line control in packaging, assembly, and material handling industries. Its non-flush M18 design enables extended sensing distance, ideal for detecting larger metallic targets or through protective covers. The AC 2-wire Normally Open configuration simplifies wiring, allowing direct connection to relays or contactors in control circuits. Resistant to oil, moisture, and temperature variations, the Autonics PR18-8AO Proximity Sensor ensures long-lasting performance in harsh industrial environments. Engineers and system integrators rely on it for dependable and maintenance-free sensing in factory automation setups.
Autonics Corporation, a global leader in industrial automation components, manufactures the PR18-8AO Proximity Sensor to meet high-quality and safety standards. Each sensor is tested under strict ISO-certified procedures to guarantee durability and precision. Known for its long operational life and stable performance, Autonics proximity sensors are trusted by automation engineers, OEMs, and system integrators across India. The PR Series exemplifies Autonicsβ dedication to delivering sensors that perform accurately under extreme industrial conditions. Backed by Autonicsβ technical expertise and support network, the PR18-8AO offers dependable sensing performance in demanding automation environments.
Within the Autonics PR Series, the PR18-8AO represents the AC Type, Normally Open configuration used in systems requiring signal activation upon metal detection. For automation setups that require reverse logic operation, the compatible model is the PR18-8AC, featuring a Normally Closed output while maintaining the same 8 mm sensing range, 100β240 VAC input, and IP67-rated housing. Both models share an identical M18 non-flush design and brass construction, ensuring mechanical and electrical interchangeability. The PR18-8AO remains the preferred choice for Normally Open AC control systems requiring extended-range metal detection.
The Autonics PR18-8AO Proximity Sensor offers 8 mm sensing range, AC 2-wire operation, and IP67 protection for reliable metal detection in industrial automation applications. Its non-flush M18 design provides stable and precise sensing in machinery, conveyors, and packaging lines. Supported by Autonicsβ engineering expertise and global support network, the PR18-8AO Proximity Sensor ensures dependable, long-term performance trusted by automation engineers and OEMs across India.
Autonics PR18-8AO People Also Asked Questions
What is the sensing distance and operating type of the Autonics PR18-8AO Proximity Sensor?
The Autonics PR18-8AO Proximity Sensor offers a sensing distance of 8mm, designed for precise metal detection in industrial automation systems. It features a Normally Open (NO) output configuration and operates on an AC 2-wire 100β240VAC power supply. With its M18 non-flush design, the sensor provides reliable detection performance, even when installed near metallic surfaces.
What are the electrical and performance characteristics of the Autonics PR18-8AO?
This sensor supports a maximum leakage current of 2.5mA and operates with a response frequency of 20Hz, making it suitable for general-purpose automation and control systems. The double insulation (1kV dielectric strength) ensures safe and stable operation in industrial environments. It is ideal for applications requiring dependable sensing performance and long-term electrical reliability.
How durable is the Autonics PR18-8AO in harsh environments?
The Autonics PR18-8AO Proximity Sensor is built with a nickel-plated brass body for superior corrosion resistance and durability. Its IP67 protection rating ensures complete protection against dust, water, and oil. Designed to operate within -25Β°C to 70Β°C, it performs consistently in demanding environments such as packaging, machinery automation, and metal processing systems.
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