Mitutoyo Caliper Error Code E--05 May 2026
Caliper Error Diagnosis Report
. This indicates that the sensor has lost its position tracking, often due to physical movement exceeding the sensor's response speed or environmental interference. Root Causes Contamination
- Severe battery voltage spike/drop – Often caused by inserting a new battery while the caliper is wet or with a short circuit.
- Static discharge (ESD) – Handling the caliper on a dry surface or without grounding can corrupt the internal ROM.
- Liquid ingress – Coolant or water penetrating the circuit board, causing a short.
- Attempted unauthorized calibration – Using incorrect external programmer commands.
- Component aging – Failure of the main ASIC (Application-Specific Integrated Circuit) or crystal oscillator.
E--05
The error code (or sometimes appearing as Err-05 or E-oS ) on a Mitutoyo caliper typically indicates a sensor signal error or overspeed error . It occurs when the sensor cannot correctly track the scale's position, often due to physical interference or internal electrical issues. Common Causes & Solutions mitutoyo caliper error code e--05
- Inspect the beam: Look for nicks, burrs, or scratches. A burr can lift the slider, changing the sensor gap.
- Check the slider: Does it glide smoothly without wobble? Excessive play (more than 0.02mm vertical movement) means the spring tensioner inside is damaged.
- Look at the LCD ribbon cable (visible through a gap on some models). Any tears or blackened lines indicate internal failure.
Power Glitch/Low Battery
: A sudden drop in voltage can "freeze" the counter, requiring a hard reset. Caliper Error Diagnosis Report