Automatic Water Pump System
thanks to ur idea for the transistor i just knew that it can b use 4 that application.. Hehe
ah okay good idea mirza. Use stainless and connect it to the base of transistor to avoid corrosion. Dont use metal screw just inject your detector to the tank and make sure it will function as 8 will intended to be.. Hehe
thanks to ur idea for the transistor i just knew that it can b use 4 that application.. Heheromel_emperado
ya i have to use stainless screws i am searching for any other solution!!!! like using aluminum pieces....
and you are welcome enjoy using simple transistor as sensor
its look like metallic plates dip in water at some gap
when air comes between plates then it change its ac signal and when water comes then also in this way it works as i think
hi mirza
here is one more circuit i use it many times
http://www.electronic-circuits-diagrams.com/alarmsimages/6.gif
ur pvc pipe idea is good and also work too
do protection of wire becoz water will dissolve wires with respect to timemajoka
Thanx for the circuit majoka....i see this and it can be used but i prefer my previous post that consist of optocouple that is a gud idea to implement.....
as u get signal from controller that water is at high level then pump remain off as bottom level reaches pump on and keep on for high levelmajoka
here is one more problem as i mentioned water is supplied three times in 24 hours for 3 hours each time so if tank level is low when there is no water supply so in this case controller will turn on the pump and again pump seal will damage coz of dry Head.......
according to fluid schematic
its look like metallic plates dip in water at some gap
when air comes between plates then it change its ac signal and when water comes then also in this way it works as i thinkmajoka
yes Majoka you are right this sensor sense water using capacitive method ....air and water are used as electrolyte between these plates. the sensor capacitance is changed in case of water.....
i think it is better to use and it will avoid electrolytic corrosion that was happening because of using D.C voltage at prob...
here is one more problem as i mentioned water is supplied three times in 24 hours for 3 hours each time so if tank level is low when there is no water supply so in this case controller will turn on the pump and again pump seal will damage coz of dry Head.......
mean u has to detect that is water supply is coming or not if it is coming then it goto next conditions and check the level of tank is it full now or not
here is one more problem as i mentioned water is supplied three times in 24 hours for 3 hours each time so if tank level is low when there is no water supply so in this case controller will turn on the pump and again pump seal will damage coz of dry Head.......majoka
yes i have to use condition here detect output of low sensor turn ON water pump if water supply is there else remain OFF.
Wow, I hope you have good floorsExperimenterUK
ya Phil I have concrete Floors......coolmirza143
Glad to hear it, that's nearly 4 tons hanging over your heads
where i have to apply ac voltage for input???coolmirza143
For a simple system connect C1 and C2 to probes, such as stainless steel bolts.
One is usually under water, the other at the surface.
When the water reaches the top electrode current flow in the circuit giving a high at the input
on N2.
For multiple levels place the N1 contact at the bottom of the tank
and make copies of the N2 side.
You may need to make C1 a bit bigger to supply more current.
I would use a pressure gauge to detect that water is available.
One idea would be to glue a piece of plastic to the pointer so that it breaks
the beam of that photo detector when the water pressure is high enough.
as i have read its only stainless steel probs or chrome?