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loum avatar image
loum asked

Sensor voltage to Cerbo tank input

I’m trying to configure a Tech-Edge Moda tank sensor that varies a 1-5 volt signal to a Cerbo DX tank input. I’ve looked at and put together som clugy type circuits - going through an ACD to digital potentiometer, but there must be a better way to translate the voltage into something the Cerbo can read. Has one done this, and if so can you please share the design? Thanks.

cerbo gx
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2 Answers
derrick thomas avatar image
derrick thomas answered ·

Get the Tank140

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Graham Owens avatar image
Graham Owens answered ·

I'm not sure what your experience with electronics is so this is just a suggestion. https://www.analog.com/en/design-notes/digital-pots-achieve-voltagetoresistance-conversion.html describes how to convert from a voltage from your sensor to a resistance the cerbo can read.

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loum avatar image loum commented ·

Thanks. Yes, played with digital pots for awhile but found they are very light on current capacity, usually below 25mA. So gave up on them and went with relays. Thanks for responding.

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