scope:

This European Standard specifies the safety, construction andperformance requirements for thermoelectric flame supervisiondevices, energized by a thermocouple intended for use with gasburners, gas appliances and similar use, hereafter referred to as"controls". This European Standard is applicable to controls withdeclared maximum inlet pressures up to and including 500 kPa (5bar) of nominal connection sizes up to and including DN 50 for usewith one or more fuel gases in accordance with EN 437. ThisEuropean Standard is not applicable to: a) the thermocouple; b)controls which use auxiliary energy (e. g. electrical energysupplied externally).