Mitutoyo Caliper Error Code E--05 Jun 2026

: Remove the battery and short the battery contacts with a small metal tool for roughly 30 seconds to drain residual capacitance and reset the internal processor. : Close the jaws completely and press and hold the button for more than one second to reset the zero point. 2. Scale Cleaning If the error occurs at specific points along the beam: Wipe the Scale

: The E-05 is specifically designed to trip if the slider moves faster than the electronic encoder can process (typically around 1.5 meters per second). Check for interference

John made a mental note to periodically check for firmware updates for his caliper, to prevent similar issues in the future. He also appreciated the importance of referring to the user manual and searching online for solutions before contacting the manufacturer's support team.

Remember: E--05 is the caliper’s way of saying, "Slow down, operator. I want to be accurate for you."

: Dust, coolant, oil, or high humidity can interfere with the capacitive sensors. Power Issues mitutoyo caliper error code e--05

E--05 is not a battery or low-voltage error (though a dying battery can trigger it). It is a communication breakdown between the moving slider’s sensor array and the fixed scale.

One forum post suggested that the error might be caused by a faulty sensor or a problem with the caliper's internal mechanism. Another post recommended trying to reset the caliper by pressing a combination of buttons, but John had already tried that without success.

Some users find success by removing the battery and using a paperclip to short the positive and negative terminals for 30 seconds to drain any residual charge.

Pro tip: If you buy a new Mitutoyo, look for the "Coolant Proof" (IP67 rated) models. They are far more resistant to E--05 caused by contamination and EMI. : Remove the battery and short the battery

Error E--05 on a Mitutoyo Absolute caliper is not a fatal failure; in most cases, it is resolved by thorough cleaning of the capacitive scale and a full power reset. Persistent E--05 after these steps suggests a hardware fault in the flexible interconnect or main electronics, requiring professional repair. Operators should treat E--05 as a rather than a measurement error, and cease use until resolved to prevent incorrect dimensional data.

Always wipe away cutting fluids, sweat, and chips before placing the caliper back in its protective case.

Using digital calipers in wet environments can lead to coolant or other liquids breaching the seals. This liquid contamination can interfere with the capacitive sensors and lead to the "E--05" error.

Follow these sequential steps to troubleshoot and clear the error from your display panel: 1. Perform a Basic Electronic Soft Reset Scale Cleaning If the error occurs at specific

While "B" is the standard low battery indicator, a failing battery can cause the electronics to glitch and throw random E-codes. Try replacing the battery with a high-quality SR44 (silver oxide) cell.

Mitutoyo Digimatic calipers use an AOS (Advanced Onsite Sensor) or an electromagnetic induction encoder. The sensor reads hidden scale graduations beneath the main beam tape. When the slider moves, the sensor tracks these changes to calculate the measurement.

Contaminants or moisture on the scale are disrupting the sensor’s ability to see the markings, making it "think" it moved too fast. Step-by-Step Troubleshooting 1. The "Soft" Reset The quickest fix is to simply clear the electronic glitch. Wipe the scale clean with a lint-free cloth. Close the jaws completely. Press the Origin or Zero/ABS button. If the error persists, turn the unit off and back on. 2. Clean the Scale (Most Likely Culprit)