Sometimes, the issue lies on the receiving end. An incorrect baud rate setting, an incompatible USB input tool (like an SPC interface), or a frozen data collection software can send an unreadable echo signal back to the caliper, causing it to crash with an E--05 error. 5. Weak Battery Voltage
Did this happen after the tool was , or did the error appear suddenly during normal use? E--05 error on a Digimatic caliper? - Practical Machinist mitutoyo caliper error code e--05
Install a brand-new, high-quality (such as Energizer, Duracell, or Maxell). Avoid cheap LR44 alkaline batteries , as they drop voltage quickly and frequently trigger E--05 errors. Sometimes, the issue lies on the receiving end