BS DD CLC/TS 61496-3:2008
Safety of machinery - Electro-sensitive protective equipment - Particular requirements for active opto-electronic protective devices responsive to diffuse reflection (AOPDDR)

Standard No.

BS DD CLC/TS 61496-3:2008

Release Date

2008

Published By

British Standards Institution (BSI)

Latest

BS DD CLC/TS 61496-3:2008

Replace

05/30130855 DC-2005 BS DD CLC/TS 61496-3:2004

Scope

Replacement: This part of IEC 61496 specifies additional requirements for the design, construction and testing of non-contact electro-sensitive protective equipment (ESPE) designed specifically to detect persons as part of a safety related system, employing active opto-electronic protective devices responsive to diffuse reflection (AOPDDRs) for the sensing function. Special attention is directed to requirements which ensure that an appropriate safety-related performance is achieved. An ESPE may include optional safety-related functions, the requirements for which are given both in Annex A of this part and in Annex A of IEC 61496-1. This part does not specify the dimensions or configurations of the detection zone and its disposition in relation to hazardous parts for any particular application, nor what constitutes a hazardous state of any machine. It is restricted to the functioning of the ESPE and how it interfaces with the machine. AOPDDRs are devices that have a detection zone specified in two dimensions wherein radiation in the near infrared range is emitted by a transmitter element(s). When the emitted radiation impinges on an object (for example, a person or part of a person), a portion of the emitted radiation is reflected to a receiving element(s) by diffuse reflection whereby the presence of the object can be detected. Excluded from this part are AOPDDRs employing radiation of wavelength outside the range 820 nm to 946 nm, and those employing radiation other than that generated by the AOPDDR itself. For sensing devices that employ radiation of wavelengths outside this range, this part may be used as a guide. This part is relevant for AOPDDRs having a stated detection capability in the range from 30 mm to 200 mm. AOPDDRs intended for use as trip device using wholebody detection with normal approach to the detection zone and having a stated detection capability not exceeding 200 mm shall meet the requirements of Clause A.12. AOPDDRs intended for a direction of approach normal to the detection zone and having a stated detection capability in the range from 30 mm to 70 mm shall meet the requirements of Clause A.13. This part may be relevant to applications other than those for the protection of persons, for example, for the protection of machinery or products from mechanical damage. In those applications, different requirements may be necessary, for example when the materials that have to be recognized by the sensing function have different properties from those of persons and their clothing. This part does not deal with electromagnetic compatibility (EMC) emission requirements. Opto-electronic devices that perform only one-dimensional spot-like distance measurements, for example, proximity switches, are not covered by this part.

BS DD CLC/TS 61496-3:2008 Referenced Document

• IEC 60825-1 Interpretation sheet 2 - Safety of laser products - Part 1: Equipment classification and requirements*， 2017-12-19 Update
• IEC 62046 Safety of machinery - Application of protective equipment to detect the presence of persons*， 2018-03-01 Update
• ISO 13855:2002 Safety of machinery - Positioning of protective equipment with respect to the approach speeds of parts of the human body

BS DD CLC/TS 61496-3:2008 history

• 2008 BS DD CLC/TS 61496-3:2008 Safety of machinery - Electro-sensitive protective equipment - Particular requirements for active opto-electronic protective devices responsive to diffuse reflection (AOPDDR)
• 2004 BS DD CLC/TS 61496-3:2003 Safety of machinery - Electro-sensitive protective equipment - Part 3:Particular requirements for Active Opto-electronic Protective Devices responsive to Diffuse Reflection (AOPDDR)