Abstract： AS/NZS 4024.2804:2021 pdf download.Safety of machinery Part 2804: Safety-related sensors used for the protection of persons (IEC/TS 62998-1:2019,MOD). 3.4.4 demand rate number of events that occur in a defined time which cause the SRS/SRSS...

AS/NZS 4024.2804:2021 pdf download.Safety of machinery Part 2804: Safety-related sensors used for the protection of persons

(IEC/TS 62998-1:2019,MOD).

3.4.4

demand rate

number of events that occur in a defined time which cause the SRS/SRSS to perform its safety related function

Note 1 to entry: Low demand mode is a mode of operation In which the safety related function of an SRSISRSS is only performed on

demand and where the demand rate is no greater than one per year

Note 2 to entry: High demand mode is a mode of operation in which the safety related function of an SRSISRSS is Only performed on

demand and wtiere the demand rate is greater than one per year. As an onentation, high demand rates are given in Table G,1 (stated values are in accordance with ISO 13849 (all parts))

Note 3 to entry: Continuous mode is a mode of operation in which the safety related function of an SRSISRSS is performed

perpetually (continuously). Finally, the limiting factor for the applicable demand rate in continuous mode is the response time of the SRS/SRSS.

Note 4 to entry: The demand rate for the safety related functions of the SRSISRSS can be different than the demand rate for the

safety function performed in a SCS.

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