How to calculate custom tank "Sensor Level" percentage.

OBJECTIVE:

Set the custom parameters for an irregular shaped tank with a 600mm 30-240ohm KUS tank sender.

Cerbo GX.

QUESTION:

How does a user calculate with mathematical certainty the "Sensor Level" in % to calibrate a known volume in %?

EXAMPLE:

The photo attached show the set points that have been added for my particular installation to work correctly.

Take Note the sensor value at Point 1 is 52% and the volume is at 10% which corresponds to approximately 120mm of rise in the float at 100 Litres.

(I have calibrated all these values to work correctly by trial and error)

2 |3000

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Alexandra ♦ commented · Jul 17 at 08:47 AM

Since it is an irregular shape a linear answer is not possible as you know.

You would have to fill the tank with known quantities step by step. Take a reading at each step. And make that work on your scale.

So if your tank is 100litres and you want 10% increment steps. Fill with 10l take the reading. Add 10l take a reading. Repeat.

Unless you really want to math the math.

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alexbrink Alexandra ♦ commented · Jul 17 at 09:01 AM

Lets say a user has these exact measurements for each increment of 100 litres of their tank. ( In most cases the soundings from the ships stability book or a sight glass would give you the measurements from top of tank.)

Is there a correlation that would allow a user to math the math to convert a sounding measurement to correspond to a Sensor Level %? (i.e. The only unknown being the Sensors % for the given volume)

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