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Automated Water Pump
Aquarium top using foam sheet
My FB id is 'email@example.com' or 'Sujith Achary' both will work
I have tried this circuit with mug of water. I put water in the mug and dipped the wires and tested it. Instead of Water Pump I connected other end of the relay to the CLF Lamp. First I attached all the three wires in the mug as shown in the above image. Then, I have filled the mug with drinking water. At this time CLF lamp was not glowing. Then slowly I decreased the water level in the mug. When water level was reducing, CLF lamp was not glowing. But when water level was empty in the mugg, CLF lamp started glowing. Then I have manually pored the water into the mug, slowly. When I continued to pore the water, wire(A) and (B) as shown in the above image are dipped in the water but CLF lamp continued to glow. When water level touched the third wire(C), that is when water level reached the top of the mug, CLF lamp turned OFF by the relay automatically. So, I thought of using this circuit for Water Pump, so that when water level in the water tank is full water pump will not work but when water level is empty in the water tank, water pump will work until the water fills in the water water tank(touches the wire (C)).
Hi Sujith...can you share your FB id?
Yes..I saw you've used an arrangement of darlington pair Tr, it would be nice if you add a PotRes to control sensitivity of water conductivity, AFAIK water have some resistance to be compensate 'bout amount of current to deliver electrical signal. and bout the Tr I have an idea to change it with pair of Tr + HeatSink to avoid break it at longer time. have you tried this circuit at real Condition sujith..?
Sorry fro the delay. It is a simple test circuit. I have used normal water because I wanted to implement this project for my home use. I'm not electronic student so I don't know the piratical hazards of this circuit. So, I have not yet implemented for my house water tank.
You can use 28 feet length wire. Since wire is long, power may reduce at the other end. So, you can increase the source voltage.
Thank you for your interest in my project
I have used simple relay which costs 80Rs in the market. And I dont know how stable it is or can it be engaged for all the time. However, I'm seeking for help from electronic students and lecture how to keep relay engaged all the time without effecting the performance of the relay. Here relay is the main driving part. If relay doesn't work then circuit will not work. Also transistors if we engage all the time the life of the transistors will reduce. So, I want suggestion on that from anyone who is viewing this circuit diagram.
Hello sujith,very nice simple circuit, btw how 'bout the relay.., is it engaged all the time?, and what kind/type of relay using on this?, coz stable rated voltage n current needed to drive on relay. thanks.
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