Light Curtain Distance Calculator

The effective sensing field of the device shall be located at a distance from the nearest recognized hazards such that the operator or others cannot reach the hazard with a hand or other body part before cessation of motion during the hazardous portion of the machine cycle.

Light curtain distance calculator.

When any of the beams is blocked the light curtain control circuit sends a stop signal to the guarded machine. T1 is the response time of safety light curtain 0 02 s. Masuzi march 11 2016. These distances are defined in standards such as iso 13855.

Light curtain to machine trap safety distance the reference standard is the en 999 safety of machinery the positioning of protective equipment in respect of approach speeds of parts of the human body. Ds 1 6 t1 tz in the formula. Light curtains control access to the hazardous equipment by emitting infrared light beams typically across the entrance to the hazardous area. For press machine whose sliding block can stop at any position safe distance should be calculated according to formula 1.

The minimum safety distance is defined as the minimum distance from the light curtain s plane of light to the closest hazard or danger point where the operator could reach into the hazard. Click to share on twitter opens in new window. A safety professional can help you determine the stopping time t s of your machine. Distance for light curtains sick inc light curtain installation and safety distance minimum how to calculate safety distance of light curtain ato com.

Ansi minimum safety distance d s calculation. Meanwhile a light curtain with 30 mm resolution hand detection has a d pf of 78 2 mm about 3 inches. Light curtains are very versatile and can guard an area many meters wide. Then use the following formula to calculate the minimum safety distance for your application.

Ds is safe distance unit m 1 6 is the stretching speed of human hand unit m s. When installing a light curtain be sure to provide the safety distance minimum distance determined by sources such as the standards regulations and laws of the country or area in which the light curtain will be used. Light curtain safety distance calculator. Machine guard safety distances calculator.