Tank Sensors
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Jimbo
Plumber
I would rethink the idea that water "splits" at 2 volts. Batteries work because water acts as a conductor, allowing electrons to flow from cathode to anode.
There are many ways for water level sensors to work, which do not involve contact of the water to the electric source> floats, capacitve sensors, dp sensors, etc. Do you have a spec sheet for the sensor?
There are many ways for water level sensors to work, which do not involve contact of the water to the electric source> floats, capacitve sensors, dp sensors, etc. Do you have a spec sheet for the sensor?
Jadnashua
Retired Defense Industry Engineer xxx
Pure water isn't a conductor. Electrolosis requires a conductor, current, and electrodes. Now, perfectly pure water is hard to get, but still, most needs some help, and then the proper electrodes to produce the hydrogen and oxygen. Not something you generally have to worry about. Assuming (and that can be dangerous) the sensor is designed with any sense, all of the current will be within it, and it wouldn't matter if it ran on 1 volt or 1000 - none of it should leak and potentially result in electrolosis.
ok,
you said the key with the water conductivity , but drinking water is a good conductor the water you said bad conductor is the deionized water or simply distilled water which would be with TDS of 3 ppm or 10ppm on max.
but drinking water is 250 ppm and may reach 500 ppm so it is good conductor
the second thing is that
if the voltage is DC , two electrodes found , more than 1.23 V supplied i am sure that water would be electrolysed but how much this is said by how much current you supply to it and time according to faradays law
waiting reply
thanks
you said the key with the water conductivity , but drinking water is a good conductor the water you said bad conductor is the deionized water or simply distilled water which would be with TDS of 3 ppm or 10ppm on max.
but drinking water is 250 ppm and may reach 500 ppm so it is good conductor
the second thing is that
if the voltage is DC , two electrodes found , more than 1.23 V supplied i am sure that water would be electrolysed but how much this is said by how much current you supply to it and time according to faradays law
waiting reply
thanks
Last edited:
There are many ways to measure level. If you are talking about a conductivity probe or capacitance level sensor, it is often driven with AC and usually a high frequency. Ones that I have built were usually 10-20 kHz. You will usually have you calibrate these to a different form of level measurement (such as dp) since the water chemistry can change and that will change your measurement.
Here are some of the many ways to measure liquid level:
http://en.wikipedia.org/wiki/Level_sensor
Here are some of the many ways to measure liquid level:
http://en.wikipedia.org/wiki/Level_sensor
Jadnashua
Retired Defense Industry Engineer xxx
A dc current through a simple resistor could drive a meter, and the mechanism might be entirely out of the water except the float. You can't generalize and state any sensor would do what you are saying. It takes two electrodes, separated, and the ability to conduct between them through the water to power the breakdown of water. Done in the same tank if it occured, it might just rejoin into water rather than stay gasses, too. Current through the sensor probably would not create the conditions to produce electrolosis.
Jadnashua
Retired Defense Industry Engineer xxx
It would be a rare water sensor that set up the conditions whereas it enabled electrolysis...and, if it was a commercial product, they would soon be out of business. 'Me thinks thou does protest too much', as Shakespeare once said.
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