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.
Any debris trapped beneath the reading head will cause a calculation drop-out. Slide the jaws completely open.
What of Mitutoyo caliper do you have (e.g., CD-6"ASX, 500-196-30)?
The indicates an encoder overspeed or signal disruption error , which disrupts the device's ability to track precise measurements. In Mitutoyo measuring instruments, this specific code triggers when the digital read-head cannot accurately scan the scale's tracking lines. This error is usually caused by excessive sliding speeds, a dying battery, scale contamination, or sensor physical misalignment . mitutoyo caliper error code e--05
Never leave your caliper lying loose on a workbench covered in machining chips or coolant splash. Always place it back in its fitted plastic protective case when not in use.
This is a classic symptom of a damaged or contaminated scale beam, or a worn read head. If the caliper works well at one end of its range but consistently errors in the same specific zone (e.g., always between 20mm and 40mm), it indicates a localized problem. Visually inspect the scale beam in the affected area for:
Use a dry section of the cloth to remove any remaining moisture. Step 3: Replace the Battery Low voltage mimics electronic failure. When this code appears, the caliper will lock
Follow this logical progression to diagnose and fix your calipers. Start with the simplest (and most likely) solutions before moving to more complex repairs.
Comparing
If the unit is under warranty, contact Mitutoyo or your authorized distributor for a warranty replacement. If it is an older unit, repair is generally not cost-effective for standard 6-inch calipers; however, for larger calipers (12-inch +) or specialized units, sending it to an authorized Mitutoyo Service Center is the recommended course of action. Slide the jaws completely open
Getting an error on your Mitutoyo digital caliper can be frustrating, especially mid-project. The good news is that this isn't usually a sign of a broken tool; itβs a specific communication from the electronics about the scale's performance. What Does E--05 Mean?
When not in use, store the caliper in its fitted plastic case rather than leaving it loose on a workbench where it can accumulate dust or metal chips.