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Reversing the reading on an older Mitutoyo DRO?


Feb 1, 2017
I have a horizontal boring mill with an older 2 axis Mitutoyo DRO on it. One scale is on the Y axis (vertical head travel) and it currently decreases numerically as the head is raised. It is counterintuitive to me and I would like to reverse the read if I can. I can post a picture of the head if need be. Thanks!
All of my older Mitutoyo units have reverse switches inside as eKretz shows. You need to check inside cases anyway for leaking backup batteries