Leaking water sensor installation requirements

Leaking water sensor of scratching although often hidden in sight, but it play role is considerable. When detected a leak occurs, does it make a sound and light alarm, remind people dealing with accidents in a timely manner. Use of leakage water sensor, be sure to install it installation requirements to operate, simple to talk about the following project.

on a water sensitive cable generally in the form of parallel distributed detection of 4 ~ 6 piece of plate. Test board banding clean dry cotton cloth 2 ~ 3 layers, can't let any exposure to the position of test plate. If using three table resistance testing, its value is close to, is equivalent to 'open'. Water sensitive cable laying in the position of to detect.

water sensor circuit box should be fixed on the wall of the left, highly by the water is less than and security firm, general installation on the height of 2 meters from the ground. Should be open circuit wiring box HouGaiBan. 12 v dc power supply electricity in three on the right side of the upper and lower two welding plate. In the middle of a welding rib is dots, have with 'GND' end for the guan lu yao letter open signal. Circuit box below two welding cable is detected by the. Device, after the end of may stop electricity detection. Should be no alarm after electricity, if use three block or pathways with table electricity detection block between the 'OUTPUT' and 'GND' resistance value, should be 'open'.

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key words: thermal resistance, thermocouple, thermal resistance, platinum resistance, PT100, PT1000, pressure sensor and digital temperature sensor