The error code on Mitutoyo Digimatic instruments typically indicates a signal or counter error , often caused by a failure in the reading system's ability to track movement accurately. Primary Causes
E-05 is an , indicating the internal counter lost track of its position—usually due to scale contamination, a weak battery, or moving the slider too quickly.
On Mitutoyo calipers and micrometers, the error (often appearing as E--05 ) typically signals a sensor communication or scale reading issue, often caused by excessive speed during movement or interference on the scale. Quick Fix: The "Paper Trick"
Ensure the disk is not too far away from the pickup sensor. mitutoyo caliper error code e05 link
For Mitutoyo height gages (like the 192 series) that display E-05, the issue is often a lost preload link between the encoder tensioner gear and the rack. One service technician noted: "The E05 error code in your case means that the preload has been lost. Open the unit up, rotate the tensioner gear a couple of turns, and get it back into the body against the rack without letting the tension off the spring" .
Use a small pin tool to for at least 3 seconds until the display clears its flashing lines and reads 0.00 . 2. Clean the Encoder Scale Beam
Slide the jaw back and forth gently to clear any trapped particulate grit out from beneath the display housing. 2. Replace the Battery and Reset the Electronics Low voltage often masquerades as a sensor failure. The error code on Mitutoyo Digimatic instruments typically
Inside the caliper, a flexible printed circuit (FPC) connects the main board to the capacitive sensor in the slider. If this internal "link" breaks, oxidizes, or gets loose, the caliper throws E05.
If the caliper was used in a wet environment without proper IP protection, water or coolant may have penetrated the sensor enclosure, causing a short or reading failure.
Mitutoyo digital calipers use a battery (also sold as 357, 303, or 303/357). Avoid LR44 alkaline batteries—they have different discharge characteristics and can cause erratic operation. Quick Fix: The "Paper Trick" Ensure the disk
Use a clean, lint-free cloth and a small amount of Isopropyl Alcohol (IPA) to wipe down the main scale. Replace the battery: Only use high-quality SR44 Silver Oxide
When experienced machinists or technicians mention the in reference to a Mitutoyo E-05 error, they're typically referring to one of four critical signal pathways: