When this code appears, the caliper will lock all functions (zero-setting, data output, mode switching). It is not a user-recoverable error in most cases.
Always store your calipers in their fitted case when not in use to prevent dust buildup on the scale.
Spray short, controlled bursts of air into the gap between the slider housing and the beam from both sides.
Press and hold the or ZERO/ABS button for 10 seconds to drain residual power. Reinsert the battery and close the cover.
Ensure battery voltage >1.45 V under load (use a multimeter). Replace with a fresh SR44 or LR44 silver-oxide cell. mitutoyo caliper error code e--05
High humidity or direct exposure to liquids can create a moisture bridge on the main scale. While many modern Mitutoyo calipers feature IP67 coolant-proof protection, older or standard models are highly sensitive to moisture. 3. Low or Fluctuating Battery Voltage
Unlike common errors like "E--01" (scale contamination) or "E--02" (excessive speed), . According to Mitutoyo’s internal service manuals and field reports from experienced metrologists, E--05 indicates a failure in the capacitive linear encoder’s reference signal detection .
Even if the screen looks bright, try a fresh battery. Avoid LR44 alkaline batteries if possible, as they have a shorter life and less stable voltage. How to Prevent It
Because electromagnetic and capacitive sensors are highly sensitive to microscopic fluid barriers, cleaning is your first line of defense. When this code appears, the caliper will lock
The simplest way to clear the code is to reset the electronic unit: Wipe the scale
If there is stubborn grease or dried coolant, lightly dampen the cloth with . Do not use harsh solvents or spray liquids directly onto the caliper.
If cleaning doesn't work, the battery is the next likely suspect. Slide open the battery compartment cap.
When the error appears while the slider is stationary and persists after all troubleshooting steps, it indicates a hardware failure. As one official Mitutoyo manual states, "If the error appears while the slider is stationary, the sensor might be defective". Spray short, controlled bursts of air into the
Re-insert the battery, making sure it is a fresh one, and that the contacts are clean.
Moisten the cloth slightly with a small amount of (rubbing alcohol). Do not use heavy degreasers or WD-40, as these leave a residue.
: A low or poor-quality battery can cause power glitches that lead to "counter overrun" errors. Internal Displacement
Before sending your caliper for repair, work through the solutions from the simplest to the most involved.