Igaging 24 inch erratic

[Bama]

Hello All. I am a new member. I am having trouble with my touch dro and was wondering if anyone has had the same problem. It is on a metal lathe. I have 2 igaging scales on it. A 6 inch on the cross slide, works great and a 24 inch on the carriage. The 24 inch is very erratic every time I move it it adds 0.200 to the readout. I put the original digital readout back on and it works fine. Any help would be appreciated

Thank you 
David

[Canadhobbyist]

I don’t have solutions for you Bama but for info I have an Igaging scale doing the same thing. These scales may just be unreliable. I’m following this thread.