Nilfisk-Advance SC500 Service Manual

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Contents

Nilfisk-Advance SC500 Service Manual Manual pdf 31 page image

Control System30Service Manual – SC500System for Flow Rate Regulation as Function of SpeedSolution flow levels 1, 2 and 3 regulate the flow of detergent solution on the basis of the machine speed so asto keep the quantity of solution dispensed per square metre of floor treated constant.The reference flow level is level 3: based on the setting of the corresponding parameter P3, the opening timeof the solenoid valve (and of the detergent pump when fitted) is regulated so that the quantity of solution incentiliters per metre travelled by the machine is constant and equal to the value set in the parameterFor example, for P3 = 3 0, the machine will dispense 3 centiliters of solution per metre travelled, which equates(for the standard deck width of 530 mm) to 5.7 centiliters per square metre of floor treated.Levels 1 and 2 are defined via the corresponding parameters P1 and P2 as a % of level 3.For example, for P1 = 25 and P2 = 50, P1 and P2 are respectively ¼ (25%) and ½ (50%) of the reference flowrate P3The default values (the same as in the example above) are summarized in the table, with the correspondingflow rate values in liters per minute, dependent on machine speed, given as a reference.Delta12 DISC detergent flow (as a function of speed) (standard setting)Level 1 Level 2 Level 3Liters/minute @ 1 km/h 0.2 0.3 0.5Liters/minute @ 3 km/h 0.4 0.8 1.5Liters/minute @ 5 km/h 0.6 1.3 2.5Centiliters per metre cleaned (constant) 0.75 1.5 3Centiliters per meter2 cleaned (Ø530 deck) 1.4 2.8 5.7Level 4 (when enabled) is independent of any parameter and supplies the maximum possible quantity of solu-tion as it keeps the solenoid valve of the supply system constantly open (with the brush rotating)Delta12 DISC detergent flow rateLevel 4Liters/minute - Tank full 3.5Liters/minute - Average 2.5