SF4B-H72-01(V2)

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Light curtain sensors, such as the SF4B-H72-01(V2), are a type of passive sensor that are used to detect the presence of persons or objects in a zone or area and trigger an alarm or other safety device. They are commonly used in a variety of industrial applications, including but not limited to, machine safety, access control, and material handling.

Advantages of Light Curtains

Light curtains offer many advantages over conventional mechanical guards and barriers. This includes:

• they are non-contact so they do not require contact with the user or object;
• they are sensitive to objects regardless of size, shape, or orientation;
• they can be programmed for maximum flexibility and sensitivity levels;
• they can detect objects in motion;
• they are cost-effective; and
• they are easy to install and maintain.

Applications of Light Curtains

Light curtains are commonly used in industrial environments, including manufacturing, packaging, and material handling applications. For example, they can be used as a safety hazard detection system to detect the presence of a person or object in a hazardous area or to prevent the operation of automated machinery when a person or object is detected in a hazardous area. They are also used as an access control system to prevent access to restricted areas. Additionally, they can be used to control the speed of conveyor systems or the speed of automated equipment.

Working Principle of SF4B-H72-01(V2)

The SF4B-H72-01(V2) is a type of line or array light curtain consisting of a linear array of infrared (IR) LEDs and phototransistors (PTs) that are placed in a grid pattern. When the light curtain is active, a beam of IR light is emitted and then received by the PTs. If a person or object breaks the beam, an alarm or other safety device is triggered. The sensitivity of the light curtain can be adjusted by setting the total number of LEDs and PTs in the array as well as controlling the distance between each LED/PT.

Conclusion

Light curtain sensors, such as the SF4B-H72-01(V2), offer a cost-effective and safe solution for a variety of industrial and safety applications. They are non-contact sensors that are sensitive to objects of any size, shape, or orientation, and can be programmed to trigger an alarm or other safety device in case of a hazardous situation. As such, they are a vital component of any automated system.

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