: Wipe the stainless steel beam (the scale) with a clean, lint-free cloth and a small amount of isopropyl alcohol . Oil, coolant, or dust can bridge the capacitive sensors and cause a "counter overrun". Advanced Internal Troubleshooting
If the caliper was used in machining coolant, the FPC may have absorbed fluid. Clean with alcohol. If the traces are green/black, the link is permanently broken. You need a replacement FPC (available from Mitutoyo part suppliers like Long Island Indicator Service). mitutoyo caliper error code e05 link
Change the battery annually, regardless of whether the low-battery indicator is on. : Wipe the stainless steel beam (the scale)
Moving the slider faster than the electronic sensor can track. Contamination: Clean with alcohol
This article explains what E05 means, why it happens, and how to fix it.
If you work near coolants or oils, moisture may be trapped in the sensor. Use compressed air to blow out the housing. 🔋 Power & Reset