Believe it or not, a stuck encoder slider can cause E05. Rapidly sliding the jaw from 0 to full extension 5–6 times can sometimes re-establish the magnetic/capacitive link.
Mitutoyo calipers have tiny screws holding the display board. Vibration loosens them. A loose screw breaks the ground link. mitutoyo caliper error code e05 link
If the caliper was used in a wet environment without proper IP protection, water or coolant may have penetrated the sensor enclosure, causing a short or reading failure. Believe it or not, a stuck encoder slider can cause E05
Why is everyone talking about the "Link" with E05? Because Mitutoyo calipers are not just standalone tools; they are part of a data ecosystem. The rectangular port on the top left of the caliper is the SPC Data Link. Mitutoyo calipers have tiny screws holding the display board
When E05 appears, it is usually one of two scenarios: