Presence Sensing Devices – Reaching over sensing fields

I recently heard about an application question about a light curtain with a small gap at the top of the sensing field, between the last beam in the field and the surrounding structure of the machine. Some concern was raised about the gap and whether or not additional guarding might be needed to close the…

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Canada Adopts ISO 13857 – Safety Distances

Safety Distances As part of the work on the 3rd Edition of CSA Z432, Canada has decided to adopt ISO 13857 as CAN/CSA-ISO 13857. The standard was adopted in 2015 without technical deviations. Why ISO 13857? CSA Z432 has long had portions of the information in ISO 13857 in its annexes – Annex C has…

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