23/06/2014 www.crouzet.com FN filling or emptying with alarm FN Part number 84870503 Automatic control and regulation of liquid levels. 2 sensitivity ranges. Filling or emptying function selected via dip switch. High or low alarm selected via dip switch. Memory can be selected. LEDs indicate state of power supply, output relay and alarm relay. Part numbers Type Voltages FN 120 VAC 84 870 503 Specifications Supply voltage Un 230, 120, 48 and 24 V AC 50/60Hz galvanic isolation via transformer Operating range 0.85 to 1.15 Un except 120 V AC: 0.85 to 1.1 Un Nominal power 3 VA at Un Maximal power 4 VA at Un + 15% Immunity from micro power cuts 10 ms Delay on pick-up T1 = approx. 2 s Response time on power up T4 = 500 ms Insulation coordination Category III, degree of pollution 2 conforming to IEC/EN 60664-1: 4 kV/2 Sensitivity range FN 5 k100k Sensitivity range FHLS 250 5k Display precision 30% with maximum sensitivity Electrode voltage 15 V AC (50/60Hz) Electrode current 1mA Response time on immersion T2 = 400 ms Response time on emersion T3 = 700 ms Output 2 AgCdO changeover Breaking capacity FN LS: 2000 VA FN: 80 W Maximum breaking current FN LS: 8 A AC FN: 8 A DC Minimum breaking current FN LS: 100mA AC FN: 100mA DC Max. breaking voltage FN LS: 250 V AC FN: 250 V DC 6 Mechanical life (operations) 2 x 10 5 Electrical life AC 12 2000 VA - 10 operations Electrical life AC 15 Cos = 0,3 - 6000 operations Electrical life AC 13 L/R = 300 ms - 6000 operations Housing material Self-extinguishing 2 Terminal capacity 2 x 1,5 mm with ferrule 2 2 x 2,5 mm without ferrule Temperature limit operation (IEC 68.1.14) (C) -20+60 Temperature limits stored (IEC 68.1.1/2) (C) -30+70 Relative humidity (no condensation) 93% (+2% -3%) Weight (g) 280 * Cration * TRADOSEmptyField Principles Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected23/06/2014 www.crouzet.com On power-up, probe AI. is submerged, relays R1 and R2 are energised and the pump is ON: filling starts, the LED for relay R1 is lit. When the level reaches the Max probe, relay R1 de-energises and the pump is OFF: filling stops, the LED for relay R1 goes off. Relay R1 re-energises when the Min probe emerges. In the event of a fault (level continues to fall) probe AI. emerges, relay R2 de- energises ans the alarme is triggered: the LED for relay R2 is lit. This fault can be stored o N Legend Memory OFF Memory ON T1: Delay on pick-up T2: Response time on immersion T3: Response time on emersion T4: Response time on power-down Principles On power-up, the level in the tank is low, relays R1 and R2 are energised and the pump is ON: filling starts, the LED for relay R1 is lit. When the level reaches the Max probe, relay R1 de-energises and the pump is OFF: filling stops, the relay LED goes off. If, in the event of a fault, the level continues to rise and reaches proble AI., relay R2 de-energises and the alarme is triggered: the LED for relay R2 is lit. This fault can be stored. Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected