Every , even if the low battery indicator hasn't appeared. A fresh battery is the single most effective E-05 prevention measure.
The encoder disc or picking unit moves too far from the scale, losing contact or preload. mitutoyo caliper error code e05 link
Water ingress is a known cause of E-05, as moisture can interfere with the capacitive sensor and corrode the PCB over time. If water gets inside, disassemble, clean thoroughly with isopropyl alcohol, and let dry completely before reassembly. Every , even if the low battery indicator hasn't appeared
Clean the contacts gently using a cotton swab dipped in isopropyl alcohol. clean thoroughly with isopropyl alcohol
: If the tool is dropped, the internal encoder disc or sensor ring can shift out of alignment. Scale Wear