Hi there guys! Just made an account for this forum, been a lurker/watcher of the EEV blog. BUT I have a Fluke 87-V and I left it running while I was doing a min-max using that feature. I took it off the ranging feature and left it at my bench turns out it was on, but it turned off after 30 Minutes like it's supposed too. However now, every time I flip the dial on I see F87 and the high voltage warning on the side you usually get when measuring above 30V. Is this to change the battery? I've contacted fluke but I was hoping for some insight from you guys. Thank you!