Measure liquid level in a tank

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kris
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Measure liquid level in a tank

Postby kris » Tue Dec 27, 2011 8:21 am

Hi !

What would be the best Phidgets sensor to measure liquid level in a tank (water with fertilizer and ph adjustment liquid) ?

Thanks in advance

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JoelMay
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Re: Measure liquid level in a tank

Postby JoelMay » Sun Jan 29, 2012 8:44 pm

Would some type of distance sensor work?

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burley
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Re: Measure liquid level in a tank

Postby burley » Mon Jan 30, 2012 8:18 am

It is possible that sonar would work though I have never tried it. IR definitely doesn't. I've had some success with using a touch sensor to detect when the water hits a certain height but that's really only useful for one particular depth.

I will test out a sonar sensor today and see how well that works.

In general Phidgets does not have any sort of sensor that is well suited for this.
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berkinet
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Re: Measure liquid level in a tank

Postby berkinet » Fri Sep 06, 2013 12:45 am

burley wrote:It is possible that sonar would work though I have never tried it.... ...I will test out a sonar sensor today and see how well that works.


Did this ever get tested? I also want to measure liquid in a tank. But, in my case the liquid is fuel oil and the only access I have to the (buried) tank is from above - and the 1128 Sonar Sensor would be perfect for this application.

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burley
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Re: Measure liquid level in a tank

Postby burley » Fri Sep 06, 2013 8:44 am

While it would technically work I have to disapprove of this specific application for 2 reasons.

First is that gasoline fumes tend to be fairly corrosive and will result in accelerated wear, effectively shortening the lifespan of the part. This may not be enough to deter you but:

Second I cannot advocate using active electronics, which have not been explicitly rated for use in a flammable environment, in a gas tank.
Brian Burley
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berkinet
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Re: Measure liquid level in a tank

Postby berkinet » Fri Sep 06, 2013 8:48 am

Thanks Brian. It is fuel oil, not nearly as flammable as gasoline, but your points are well taken. I am looking around at some parts that may be more suitable for this application.


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