I only know enough about electronics to be dangerous.
While I was looking at that page 3 graph, I was trying to tell myself that lower omh value means more resistance.
So here's my layman's understanding of all this.
The controller sends a current throught the sensor.
How much current comes back on the other side, is indicative of the temperature.
Less current back (less amps or less volts?) Indicates a lower temp.
And more current indicates a higher temp.
So I have to find a way to decrease resistance, or just boost the current that goes back to the controller.
So let's assume the current sent by the controller is 12V, 1 amp, and it's constant.
It comes back as 12V, 4 amp, indicating that it's 20° C
I need it to read 12V, 4.1 amp to fool it into thinking it's 25° C.
So what if I add a 12V feed from the PSU, with a pot on it to add 0.1 amp?
This might not work if the controller signal is intermitant, as I'd have to match the signal frequency.
Unless the switching is done on the ground side of it. (fingers crossed)
Can you think of a flaw in my thinking?
Am I looking at this the right way?
Or perhaps it's the voltage that drops with resistance? But I don't think so.Edited by PepeLapiu - 4/3/14 at 9:31am