JUTAI IR - 20 Infrared Photo Sensor: Advanced Outdoor Detection Solution

I. Introduction
The JUTAI IR - 20 infrared photo sensor is a sophisticated device designed to offer superior outdoor detection performance across a wide range of applications.

II. Features, Functional Characteristics, and Technical Principles

A. Key Features

1. ​Versatile Application in Door Systems
   • As a solitary beam detector, also known as a single beam sensor, it is widely used in automated sliding doors, shutter doors, garage doors, windows, and various other applications.
   • Each unit consists of a transmitter and receiver, featuring an integrated amplifier that emits an infrared beam. This narrow infrared beam (either Type I or II) effectively counteracts external light interference.
   • Even when mounted at a low elevation (20 - 40cm above ground level), these sensors maintain a dependable detection range spanning 2 - 20 meters.
   • Distinguishing itself, the IR - 20 sensor boasts a self-detecting capability tailored for sliding doors. Upon interruption of the self-detecting beam, the door halts its closure, swiftly retracting to its widest position. Resuming its opening motion, the door continues until the detecting beam is reinstated. Following complete closure, the detecting beam deactivates.
2. ​Weatherproof Design for Outdoor Use
   • With an IP65 rating and rubber casing, it can resist ultraviolet radiation and abrasive particles, making it suitable for outdoor use in all weather conditions.
3. ​Long Detection Range
   • It has a maximum detection range of 20 meters. At a low mounting height, it still maintains a reliable detection range of 2 - 20 meters.
4. ​High-Quality Components for Reliable Operation
   • German infrared lamps ensure stable distance detection and light resistance, while Japanese Omron relays offer compatibility with various door operators. SMT patch production ensures batch quality.
5. ​Interference Immunity​
   • ​IR - 20: Zero crosstalk between dual units on AC power (Any small distance even 1cm), ensuring precise and independent detection without interference from nearby units.
   • ​IR - 20G: Supports 4-unit networking via chip-controlled isolation protocol, enabling seamless communication and coordination among multiple units.
6. ​Military-Grade Protection
   • ​IP65 Sealed Construction: Made with silicone molding and ultrasonic welding, providing a robust and sealed design that protects against dust and water ingress, ensuring reliable operation in harsh outdoor environments.
   • ​Wide Operational Temperature Range (-40°C~+70°C): MIL - STD - 810G certified, allowing the sensor to function optimally in extreme temperature conditions.
7. ​Smart Diagnostics
   • ​Tri-color LED Indicators: Provide clear visual cues for 6 common fault types, facilitating quick and easy troubleshooting.
   • ​Predictive Maintenance System: With ±5% lifespan estimation, this system anticipates potential component failures, enabling proactive maintenance and minimizing downtime.

B. Functional Characteristics

1. ​Detection Zone Operation
   • Position each detector pair at opposing points, delineating an infrared zone between them. Detection of movement within this zone triggers an alarm signal relayed to the security alarm host (not provided).
2. ​Widely Applicable Security Setup
   • Ideally suited for incorporation into security setups within educational institutions, commercial complexes, medical facilities, residential premises, and more.
3. ​Consistent Detection in Adverse Weather
   • The detection scope maintains consistency even amidst inclement weather scenarios like rainfall, dust storms, etc.
4. ​User-Friendly Installation and Configuration
   • Complementing the product, an English Usage Manual accompanies the package, furnishing comprehensive guidance with illustrated diagrams to facilitate effortless installation and configuration.

C. Technical Principles

1. ​Dynamic Spectrum Control
   Self-optimizing frequency hopping technology ensures independent channel integrity, reducing the risk of interference and maintaining reliable detection performance.
2. ​Digital Signal Authentication
   Unique encrypted identifiers with a multi-layer verification mechanism enhance security and prevent unauthorized access or interference.
3. ​Environmental AI Compensation
   Real-time adjustment of detection thresholds based on ambient analysis compensates for changes in environmental conditions, ensuring consistent and accurate detection.

III. Technical Parameter Table

IV. Working Principle
The sensor transmits an infrared beam. When an object enters the detection zone and interrupts the beam, it changes the signal received by the receiver. In sliding door applications, this change prompts the self-detecting mechanism to control the door's movement. For security systems, an interrupted beam can send an alarm signal.

V. Installation Instructions

1. Open the front panel of the IR - 20M to open it.
2. Insert the cables into their housings and fix the base to the wall using suitable anchors or screws.
3. Connect the power supply within the 12 - 24V DC/AC range.
4. Verify the red LED status on the receiver; it should be off with proper setup. Interrupting the beam should turn it on.
5. Cover the sensor with the front panel and secure it.
6. Test the relay response by interrupting the beam several times.

VI. Applications

1. ​Gate and Door Automation
   • Used for body induction in gates and anti-burglar detection in doors and windows.
2. ​Security Systems
   • Suitable for security setups in schools, commercial buildings, hospitals, and homes.

VII. Conclusion
The JUTAI IR - 20 sensor is a reliable and efficient solution for outdoor detection tasks, combining advanced features, reliable operation, and user-friendly design.