Can you explain behaviour of this decider combinator?

[GunSmoker]

Hi,

Can anyone explain behaviour for this decider combinator? I don't understand it.

WTF.png (505.76 KiB) Viewed 557 times

1. One input is connected to a single gas tank (gas tank connects to other gas tanks).
2. Second output is connected to a single heavy oil tank (also connects to other tanks).
3. Output is connected to a pump, which is supposed to move heavy oil into processing to gas.
4. Condition is set to "gas < heavy oil", asking to output 1.

Problem:
1. Screenshot clearly indicate that input is 24'000 gas and 85 heavy oil.
2a. Expected: no output, because 24'000 > 84. Pump is not active.
2b. Actual: output is active, pump is working.

[Loewchen]

You compare: crude oil < light oil, there is no crude oil so the condition is true. I assume what you actually wanted to do is compare against petroleum gas.
Further more you seem to mix up heavy oil vs light oil in your description or your circuit as well.

[GunSmoker]

Damn, I am blind. Thanks!