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Monitoring Water Level in a Tank

Former Member

I wan to automate a test that I conduct frequently.  I want to record the drop in water level in a water tank over 30 minutes then trigger a valve with solenoid (able to operate by gravity flow, no pressured water) to refill the water back to same level and then wait another 30 minutes.  Each time interval will have a set of data representing the water level in the tank.  I was told I need a microcontroller, an e-tape (from Milone technologies) and a water valve.  Can anyone help in pointing out what instruments are needed and how to connect them.  I was told that I don't need a data logger if the controller can control a valve and log data.  If someone an help , I will draw a sketch if needed. Regards

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  • in reply to Former Member

    The method I would choose is based on my knowledge and capabilities. Your choice should be based on your knowledge, capabilities and availability of time and resources.

    My way involves designing and building a capacitance probe, designing and building a capacitance measurement circuit, connecting it to a PSoC4 microcontroller, programming the microcontroller to handle the valve, the timing, data capture, datalogging, data scaling and data reporting.

    If you want to avoid some of the learning associated with doing it the way I would do it, there are other solutions such as the e-tape sensor and the Sparkfun Logomatic module. The e-tape sensor would also work well with a PSoC4 microcontroller. But all of these solutions involve some design work.

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