SF4B-H32G(V2)

Series:	SF4B
Part Status:	Active
Lead Free Status / RoHS Status:	--
Protection:	Hand
Moisture Sensitivity Level (MSL):	--
Detection Capability:	25mm
Protective Height:	644mm
Number of Beams:	32
Beam Pitch:	20mm
Operating Range:	0.3m ~ 9.0m
Features:	Blanking, Muting Function
Ingress Protection:	IP65/67 - Dust Tight, Water Resistant, Waterproof
Operating Temperature:	-10°C ~ 55°C
Voltage - Supply:	24VDC

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Introduction

Light curtains are safety devices commonly used in industrial automation, offering an economical, effective and reliable method for preventing physical access to hazardous equipment. This article will discuss the application field and working principle of the SF4B-H32G (V2) light curtain.

Application Field

The SF4B-H32G (V2) light curtain is typically used in hazardous areas, either in the production line or within the plant, where access must be completely restricted. This includes areas where hazardous materials may be stored or handled, as well as areas that are exposed to high temperatures and/or high pressures, such as foundries and cleaning equipment. The light curtain is also used in areas where personal protection equipment (PPE) may be required, such as when working with hazardous substances.The SF4B-H32G (V2) is rated for use in various hazardous locations, including Class 3, Zone 2 and Zone 2 II, as well as various hazardous dust areas. It is also suitable for use in marine-rated (IP65) applications and can be used outdoors in wet conditions.

Advantages

A major advantage of the SF4B-H32G (V2) is its ability to provide both visual and audible warnings when someone enters the protected area. This is particularly beneficial for situations where workers may be distracted or inattentive, thereby reducing the risk of accidents. The light curtain also features a two-stage safety system, meaning that when the safety curtain is activated, both visual and audible warnings will be sent before any other safety actions are taken. Additionally, the light curtain features various safety circuits, including a power failure circuit that will automatically switch off the power supply should a power failure occur.The SF4B-H32G (V2) also features a multicoloured LED indication system that can be used to indicate various hazardous conditions. This allows users to quickly identify and take necessary safety precautions to protect personnel, equipment and the environment.

Working Principle

The SF4B-H32G (V2) light curtain functions by using infrared light. Infrared light beams travel across the protected area creating a “curtain” of light. If the light beam is blocked, the light curtain will recognize that an obstruction is present and will activate the warning system. If the obstruction is removed, the light beam will once again travel across the protected area.The SF4B-H32G (V2) also features a reset switch and an emergency stop button. These should be used when the light curtain has detected an obstruction or in the event of an emergency.

Conclusion

The SF4B-H32G (V2) light curtain is an effective safety solution for hazardous areas. It features a two-stage safety system, various safety circuits, and a multicolour LED indication system, making it an ideal choice for areas where personal protection equipment may be needed. Additionally, its working principle of using infrared light beams provides an economical and reliable means of preventing physical access to hazardous equipment.

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