I have a ML1500 and I am looking to display fuel level on a red lion 10" color touch screen. The sender that I typically use has 240-30 ohm range (it is also available is 0-30 ohm and 0-90 ohm). Can anyone tell me what i need to accomplish this. Thanks

Not fluent in ML1500, but a quick check of the Rockwell Site shows a 1769-IF4 and 1769-IF8 analog input for ML1500. These are +/- 10 VDC or 0 to 20 / 4 to 20 ma units. So you'll need a power supply and additional resistance so you get the desired voltage or current.

Would it be beneficial to use a potiposition transducer instead of adding additional resistors?

Not familiar with that type of hardware. Others may have input I hope.