There are two adjustments on each gauge. One obviously adjusts the needle position and I assume the other adjust the tension on the gauge thermal contacts.
The needle adjust seems to be a null adjust. That is � it reaches a low setting and begins to increase again as you continue to turn the adjustment. Am I right on this?
The other adjustment is more difficult to figure out. I can�t see into the gauge to be able to make an educated guess and I don�t want to turn until I know more.
Does anyone know which way (clockwise vs. counter-clockwise) does what ???