OPL813-OC

Series:	Photologic®
Part Status:	Active
Wavelength:	935nm
Type:	Photo Detector, Logic Output
Output Type:	Open Collector Inverter
Package / Case:	TO-18 small
Operating Temperature:	-55°C ~ 105°C (TA)

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Introduction

Optical Sensors – Photo Detectors – Logic Output (OPL813-OC) is an optical sensor specifically designed for use in various industrial applications such as water, soil, and chemical level monitoring, and even smoke and flammable gas detection. This sensor relies on its unique logic output mechanism combined with a built-in light-to-dark level comparator for high accuracy and reliability, especially in AI-driven applications. It utilizes an energy-efficient system for maintenance-free operation, energy savings, and cost optimization.

Functionality

The OPL 813-OC consists of a receiver, signal amplifier, logic circuit, power supply, and a busy indicator. Its receiver is an opto-isolated detector that accurately detects light/dark signals. The signal from the detector is amplified and processed in the logic circuit. The circuit then sends a signal (high or low) to the logic output. The logic output can be used to drive transistors or activate relay devices with zero-crossing to ensure switching reliability.The OPL 813-OC also includes a busy indicator which is normally OFF when the light/dark level is stable, and goes ON when the light/dark level changes. The busy indicator helps users to instantly identify changes in the light/dark level.

Working Principle

The OPL 813-OC is powered by a single-ended DC input voltage varying from 12V to 24V. It has an internal bandgap voltage regulator circuit that enables it to operate even in extremely low input voltages without any effect on the outputs.OPL 813-OC utilizes photodiode as the light/dark level detector. The photodiode is connected in a reverse biased arrangement with negative feedback. The photodiode senses the presence of light or dark, and generates an analog voltage corresponding to the amount of light/dark it is sensing. This analog voltage is amplified by an OP amplifier and fed to a differential input comparator.The logic output high level is set at the minimum threshold voltage, and the logic output low level is set at the maximum threshold voltage. When the input voltage is higher than the min threshold voltage, the logic output is high; otherwise the logic output is low.

Applications

OPL 813-OC has a wide variety of applications, mainly in industrial automation such as process control, machine tools, and robotics. It is also used for various applications such as optically-controlled safety doors, water level sensing, detection of the presence of smoke and gas, and other environmental sensing applications.The OPL 813-OC is a reliable and efficient photo-detector for industrial automation and is ideal for use in complex systems requiring a high degree of accuracy and repeatability. Its unique combination of energy efficiency, maintenance-free operation, and logic output, make it the ideal choice for AI-driven applications requiring utmost precision.

Conclusion

In conclusion, the OPL 813-OC Optical Sensor/Photo Detector/Logic Output is an excellent choice for industrial applications that need to monitor and control processes in an environment demanding accuracy and precision. Its logic output and energy-saving features make it well-suited for the most advanced automation systems, and it is ideal for applications such as water and gas level sensing, smoke detection, and flammable gas detection.

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