The AR system warns the user it is time to perform the resin regeneration. It is made up of 2 optional accessories, the REGENERATION ELECTRONIC ALARM inside the IV manual softener and the DIGITAL PROGRAMMER, placed outside the softener, must be used to enter data in the electronic card through the connecting cable. With only one programmer it is possible to program any card.
The AR system warns the user it is time to perform the resin regeneration. It is made up of 2 optional accessories, the REGENERATION ELECTRONIC ALARM inside the IV manual softener and the DIGITAL PROGRAMMER. The REGENERATION ELECTRONIC CARD is placed inside its plastic container to be attached to the model IV softener valve. After a certain time, the electronic card will produce a periodic acoustic signal to warn the user it is time to perform the regeneration.
The total water hardness indicates the amount of minerals (calcium, magnesium, calcium carbonate, magnesium carbonate) present inside the water. The value is expressed in ppm. Consider the equivalence 1°fH = 0,55°dH = 10mg/l = 10ppm to calculate the water hardness in french degrees using the chromatic scale on the package.
The pH value describes the acidity or alkalinity (basicity) of drinking water and is measured on a scale with values between 0 and 14 pH: low pH values (less than 6) indicate that the water is acidic; pH values close to 7 indicate that the water is neutral; high pH values (greater than 10) indicate that the water is alkaline (basic). According to the Legislative Decree n. 31, 2001, the drinking water pH should be between 6.5 and 9.5 pH. The pH values different from neutrality are due to the chemical elements present in the water. Lower or higher values indicate that the water is polluted by strong bases or acids. Values of pH higher than the pH value of 11 pH or lower pH 4 are to be considered dangerous for the human health.
Carbonate hardness measures the amount of calcium carbonate and magnesium carbonate (the main elements which form the limestone) present in the water. The carbonate hardness is a percentage of the total hardness. The value is expressed in German degrees (°gH or °dH).