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Old 06-21-2012, 07:54 AM   #1
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Default BCS Level Sensing

I'm looking at this continuous level sensor.

No... it's not cheap. But it can be configured for 1-5 volt output. How would I use this with a BCS controller since the BCS does not work with an analog signal? A transducer? if so, what am I looking for?

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Old 06-22-2012, 03:38 AM   #2
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I have looked around for "resistance" output versions, but most have small range of resistance change to work with automotive fuel gauges. There was one that had a range for working with 2K thermistors but the BCS uses 10K thermistors so I do not know what you kind of results you would get.

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Old 06-22-2012, 03:48 AM   #3
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Thanks Kevin

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Old 06-22-2012, 06:39 AM   #4
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Here is an example using a pressure sensor and an Arduino to convert the voltage for the BCS. Would something similar to this work with the sensor I listed above?
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Old 06-22-2012, 11:41 AM   #5
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I am unsure as to whether the setup with the Arduino would give you the results you are looking for, let me do some additional looking for a suitable method to make this work.

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Old 06-22-2012, 03:42 PM   #6
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Research research research
Ok… so here is a transducer that does similar to what I’m looking for. What would it take to build one that just took 0-5V and converted it to 0-10K ohms?
From there it shouldn’t take much to make it work with the BCS… right?

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Old 06-22-2012, 08:41 PM   #7
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Still researching...
I found this schematic

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Old 06-22-2012, 09:10 PM   #8
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Quote:
Originally Posted by OneHoppyGuy View Post
Still researching...
I found this schematic
An arduino could definitely do a linear conversion between 1-5v and 0-10k ohms via a relatively simple interface with a digital pot, but it would be hardware overkill. This circuit you've got here looks like it would work fine if you can generate a clock signal.
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Old 06-22-2012, 09:24 PM   #9
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Please excuse my complete ignorance.
Would a Ceramic Oscillator work as a clock?

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Old 06-22-2012, 09:27 PM   #10
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Quote:
Originally Posted by OneHoppyGuy
Please excuse my complete ignorance.
Would a Ceramic Oscillator work as a clock?
I suspect so, though I'm an amateur too. Just make sure the frequency and voltage outputs are within the specs of the chip you pick.
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