TECHNICAL FEATURES AND REGULATIONS SENS Regulation by screwdriver of the sensitivity from 4kΩ to 33kΩ approx. For low conductive liquids, turn to clockwise. VISUALIZATIONS ON GREEN LED supply on RED LED it lights on when the relay is ON MODE OF OPERATION The device works with three probes which are: GROUND PROBE (M) It must be always submerged in the liquid (the reservoir can be used as ground probe when it is made of conductive material). LONG PROBE (L) It controls the minimum level. SHORT PROBE (C) It controls the maximum level The probes are supplied with alternated current, so that the electrolysis does not take place. When the liquid reaches the ground and long probe (minimum level) the internal relay is OFF; when the liquid reaches also the short probe, the relay goes ON and it will return OFF when the liquid returns below the long probe (fig.3). E 193 (fig.2) shows one of the most common probe used for this device.

FUNCTION AND USE The level regulator works on the principle of the conductivity and it is suitable for the control of the maximum and minimum levels of conductor liquids (especially water). It is not suitable for diesel oil, petrol and its byproducts.

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