Accurate, reliable and built for professionals – the M-SURE Digital Calipers are precision tools engineered to deliver consistent measuring performance. Whether you're in a workshop, lab, or manufacturing environment, this guide will help you get the most from your digital caliper.
Getting Started: First Use Instructions
Before using your M-SURE Caliper:
- Wipe the caliper with a clean cloth moistened with cleaning oil.
- Treat the instrument with care – it’s a precision measuring tool, not a robust mechanical device.
- The pre-installed battery is for factory testing and may not last long; consider replacing it for optimal performance.
- Avoid exposure to moisture, extreme heat, cold, or direct sunlight.
- Never apply voltage or attempt to engrave the device electrically.
- Remove the battery if the caliper will be unused for an extended period.
Operating the Caliper
Basic Measuring Steps
Check & Clean: Ensure the jaws and measuring surfaces are clean.
Power On: Switch on the device.
Zero the Display: Loosen the locking screw and fully close the jaws. If the display doesn’t read “0.00”, press the ZERO button.
Select Units: Use the in/mm button to toggle between metric and imperial units.
Take Measurement: Gently place the caliper onto your workpiece – no excessive force is required.
Types of Measurements
External Measurement: Use the external jaws.
Internal Measurement: Use the internal jaws.
Depth Measurement: Utilise the depth rod at the end of the beam.
Step Measurement: Use the rear step feature behind the jaws.
Battery Replacement Instructions
- Insert the key into the battery cover.
- Gently twist to unlock (do not use excessive force).
- Remove the battery cover.
- Extract the battery – a magnet-tipped tool may help.
- Locate the spring contact inside the battery compartment.
- Insert the new battery with its edge against the contact.
- Press down on the opposite edge to seat it.
- Align the battery cover lugs with the slots on the caliper.
- Twist to lock the cover back into place.
Function Buttons Overview
| Function | Button Location | Purpose |
|---|---|---|
| ZERO/SET | Front Panel | Resets the measurement value to 0.00 mm |
| in/mm | Front Panel | Toggles between inches and millimetres |
| PRE+ / PRE- | (MS-222 models) | Adjusts preset value |
| ABS | (ABS models) | Switches between Absolute and Incremental modes |
Calipers with Preset Function (MS-222 Models Only)
- In INC (incremental) mode, press and hold ZERO/SET until “SET” flashes.
- Use PRE+ or PRE- to enter your preset value.
- Press ZERO/SET again to confirm.
- To recall this preset, press ZERO/SET again (INC mode only).
Zeroing the Caliper
- Close the jaws completely.
- Press the ZERO button until the display reads "0.00 mm"
Using the ABS (Absolute) Function
- Close the caliper and press ZERO to set the reference point.
- Measure a workpiece (e.g. 10.00 mm).
- Press ABS to switch to incremental mode.
- Perform relative measurements.
- Press ABS again to return to absolute mode.
Troubleshooting Common Issues
| Problem | Cause | Solution |
|---|---|---|
| Flashing Display | Low battery / poor contact | Replace battery / clean contacts |
| No Display | Dead battery | Replace battery |
| Erratic or Frozen Display | Dirt on beam or head | Wipe clean, replace battery if needed |
| Incorrect Readings | Low voltage, excessive force | Replace battery / operate with less force |
| Non-zero Reading When Closed | Needs zeroing | Press ZERO button |
Final Notes
- Always store the caliper in a dry, cool place.
- Never use solvents or harsh chemicals for cleaning – stick to a soft cloth and cleaning oil.
Keep the battery removed during long periods of inactivity to prevent corrosion.
