M18 Photoelectric Sensor (Diffuse Reflective)
M18 Photoelectric Sensor (Diffuse Reflective)
The M18 Photoelectric Sensor is a type of sensor commonly used in industrial automation and control systems. These sensors detect the presence or absence of objects, changes in surface conditions, or other parameters through the use of light. Here are some key points about M18 Photoelectric Sensors:
Key Features:
Size and Design:
- M18 Size: The "M18" refers to the diameter of the sensor housing, which is 18 millimeters.
- Cylindrical Design: This makes it easy to install in various industrial settings.
Sensing Modes:
- Through-beam: The sensor consists of a separate emitter and receiver. It detects objects when the light beam between them is interrupted.
- Retro-reflective: The sensor and a reflector are used. The sensor detects objects when the light beam reflected back to it is interrupted.
- Diffuse: The sensor detects objects based on the reflection of light from the object itself.
Sensing Range:
- Varies depending on the model and sensing mode, typically from a few centimeters up to several meters.
Output Types:
- PNP/NPN: Transistor output types for easy interfacing with control systems.
- Analog/Digital: Some models provide analog output for measuring distance or position.
Environmental Resistance:
- Many M18 sensors are designed to withstand harsh industrial environments, with features such as IP67 or higher protection ratings, making them resistant to dust, water, and other contaminants.
Adjustability:
- Sensitivity and range can often be adjusted to suit specific application requirements.
Applications:
- Material Handling: Detecting the presence of objects on conveyors.
- Packaging: Ensuring products are correctly positioned and counted.
- Automotive: Used in assembly lines for presence detection and positioning.
- Manufacturing: Quality control and automation processes.
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