100 mm

Visual signaling devicesAccessoriesExternal flash monitoring systemThis device monitors the correct functioning of a fl ashing light by opto-electronicmeans. The fl ash from the light is fed via an optical fi bre to a phototransistor,which converts the optical impulse to an electrical impulse. The electronic circuitevaluates the pulse and its regular repetition. As soon as the operating voltageis applied, the evaluation relay closes the changeover contact. If the operatingvoltage fails, the relay opens immediately.This method of operation represents the fail-safe normally-closed circuit functionand guarantees an alarm even if the operating voltage fails. On the other hand, thechangeover contact serves to continue an alarm, e.g. in an failure message line, orthe direct blocking of further machine processes.Electrical dataExternal flash monitoringRated voltage 230 V AC 12 V DC 24 V DC 48 V DCRated frequency50 Hz / 60 HzOperating range 198 V – 242 V 11 V – 15 V 16 V – 34 V 38 V – 52 VNominal current consumption 0.001 A 0.050 A 0.050 A 0.050 AMechanical dataFibre optic cableExternal flash monitoringDuty cycle 100 %Switching capacity of theevaluation circuitmax. 230 V AC: 2 AOperating temperature - 20 °C ... + 50 °CStorage temperature - 40 °C ... + 50 °CRelative humidity 90 %Protection system according to EN 60529 IP 55Material acrylonitrile butadiene styrene (ABS)Colour similar to RAL 7035Cable entryWeightACDC1 m2 x M20330 g230 gDimensionsMounting holes120805555Ø 4.1108OperatingvoltageEvaluationcircuit connectorFibre optic cable 1 mOrdering detailssuitable for ... Rated voltage Article numberany flashing light with a 1 Hz flash rate 24 V DC 291 30 80 0 000Article numbers for other voltages on request118www.pfannenberg.com