Water Control | Electronic Project Circuits

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Water Pump Relay Controller Circuit Schematic

Water reservoir automatic level control
Simple circuitry – 12V supply

Device purpose:
By means of a Relay, employed to drive a water pump, this circuit provides automatic level control of a water reservoir or well.
Circuit operation:

The shorter steel rod is the “water high” sensor, whereas the longer is the “water low” sensor. When the water level is below both sensors, IC1C output (pin #10) is low; if the water becomes in contact with the longer sensor the output remains low until the shorter sensor is reached. At this point IC1C output goes high, Q1 conducts, the Relay is energized and the pump starts operating.
Now, the water level begins to decrease and the shorter sensor will be no longer in contact with the water, but IC1C output will be hold high by the signal return to pin #5 of IC1B, so the pump will continue its operation. But when the water level falls below the longer sensor, IC1C output goes low and the pump will stop.

SW1 is optional and was added to provide reverse operation. Switching SW1 in order to connect R3 to pin #11 of IC1D, the pump will operate when the reservoir is nearly empty and will stop when the reservoir is full. In this case, the pump will be used to fill the reservoir and not to empty it as in the default operating mode.

Parts:
R1,R2___________15K 1/4W Resistors
R3______________10K 1/4W Resistor
R4_______________1K 1/4W Resistor
D1______________LED any type and color
D2___________1N4148 75V 150mA Diode
IC1____________4001 Quad 2 Input NOR Gate CMos IC
Q1____________BC337 45V 800mA NPN Transistor
SW1____________SPDT Toggle or Slide Switch (Optional)
RL1___________Relay with SPDT 2A @ 230V switch
Coil Voltage 12V – Coil resistance 200-300 Ohm
Two steel rods of appropriate length

Read more source: http://www.redcircuits.com/Page129.htm

Be the first to comment - What do you think? Posted by admin - March 4, 2011 at 5:57 pm

Categories: Electronic Control Tags: motor relay circuit, relay driver circuit, water control

Water Drain Pump Controller by IC 4013

A hole needs to be digged at the lowest place in the celler that have water incomming problems. The hole is about 0.5 x 0.5 x 0.5 meter, at the bottom a large water pump is mounted. Then the different water levels was measured, so we know how to make the sensors.

Read more original source:http://www.webx.dk/oz2cpu/waterpump/water.htm

Be the first to comment - What do you think? Posted by admin - October 30, 2008 at 5:57 am

Categories: Detector, Digital, Electronic Control Tags: IC 4013, pump controller circuit, water control

Rain Water Alarm with LM380

Circuit Water Alarm with LM380
This be Rain alarm or Water Alarm circuit ,model to be simple. When sensor point touch the water. It is make the circuit works to have a voice warn hear. By the circuit composes the equipment is important be integrated number circuit LM380. It usual perform amplify , but for this circuit brings to pretend origin signal sound easily circuit. By have transistor edit the circuit work. And when sensor point touch the water , as a result make transistor work wasp current change LM380 give it works beep origin upwards hear. The detail is other , see in the circuit.