Centrale 12v rilevatore d'acqua pioggia neve calibro grandine pioggia segnalazione waterswitch 9v 10v 11v m158

Assembly instructions:
The module is fastened outside the area which shall be monitored (in the cellar e.g. at the top of the wall). The leads towards the electrical power supply are connected with a power source, e.g. with a 9 V plug power supply. The power supply should be stabilised and have a minimum power of 100 mA. Both cables at the module leading to the water sensors are connected with 2 bare rustproof metal parts. These can be e.g. 2 galvanized screws (M4...M8). The screw heads have to be mounted there where the humidity shall be monitored. Both screws must be insulated from each other and mounted with the bare screw heads at the spot endangered through water. If now both metal parts (screw heads) dip into water, the water switch connects: the built-in relay switches 'ON' and the light-emitting diode 'ON' lights up. So if 2 metal parts mounted in isolation (distance approx. 1...2 cm) being the size of screw heads (approx. 6...10 mm) dip into water at the same time, the water switch connects. It only switches off again, if both metal heads are no longer dipped into water. Then either acoustic alarms (e.g. horns) can be activated or pumps may be switched on by means of a secondary relay or other devices may be switched off with the built-in relay in case of contact with water.
I m p o r t a n t :Both water electrodes may possibly oxidise depending on the frequency of contact with water and the aggressiveness of water. Galvanized metal parts which are wiped (cleaned) from time to time, if required, are sufficient during normal operation. If the electrodes oxidise too quickly due to very aggressive water (e.g. liquid manure), please use electrodes with a non-oxidising precious metal coat: e.g. gold-plated or coated with platinum (in case of very corrosive liquids, electrodes of titanium are suitable, too).

Use as directed:
Sensor which gives 'žAlarm' via a relay contact, if the sensor wires come into contact with water.

Setting into operation:
The 9 V= operating voltage is switched on after assembly. The LED at the module lights up and indicates that the module is ready for operation. You may check the readiness for service by touching both water electrodes with 2 wet fingers. The water electrodes then react.