Attached is one idea. First op-amp works as an adder (or subtracter). It removes the DC offset voltage from the + input. So output is around 0-0,58 volts for -30 to 30 deg.

Then the second op-amp works as an DC amplifier to boost the 0,58 to 5 volts. So you have to make two adjustments, trimmer R9 at 2,4315 volts and R10 to get 5 Volts for 30 deg.

Also very critical is to select op-amps that are able to work at 5Volts and be rail to rail. I thing LMC662 is such a chip.

Ioannis

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