Mitutoyo Caliper Error Code E--05

Reinsert the battery (or a brand-new one) and check the display. Step 2: Clean the Scale and Slider Cleaning is the most effective fix for this specific error. Open the caliper jaws completely.

Avoid cheap LR44 alkaline batteries. Alkaline batteries suffer from voltage drops that frequently trigger E--05 and erratic readings in precision electronics. Step 4: Dry the Unit If the caliper was exposed to heavy coolant or humidity: Remove the battery cover and the battery.

If you have thoroughly cleaned the scale, replaced the battery with a premium SR44, reset the origin, and the E--05 code still won't disappear, the internal electronics or the printed circuit board (PCB) may be permanently damaged.

When the reader head on the slider cannot properly read the graduation patterns on the main beam, the internal microprocessor loses track of the position. To prevent displaying an incorrect measurement, the caliper shuts down normal operations and throws the E--05 safety code. Primary Causes of the E--05 Error mitutoyo caliper error code e--05

: A weak battery can cause power glitches that load random numbers into the internal counter, triggering the error. Mechanical Shock

Follow these sequential steps to troubleshoot and clear the error from your display panel: 1. Perform a Basic Electronic Soft Reset

For older Mitutoyo models that rely on mechanical gear racks (rather than purely electronic absolute sensors), the E--05 error can point to a physical mechanical breakdown: Reinsert the battery (or a brand-new one) and

The most frequent cause of the E--05 error is debris on the main beam of the caliper. Oils, coolants, grease, fine metal dust, or moisture can form a film over the internal scale. When the slider moves over this dirty patch, the electromagnetic sensor loses its tracking capability. 2. Excessive Moving Speed (Overspeeding)

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

The sensor was moved faster than its maximum response speed. Avoid cheap LR44 alkaline batteries

Reassemble and perform a hard reset using the button. 2. Encoder Realignment (Dropped Tools)

Always wipe the scale beam with a dry cloth before starting your work.