1. Use a gage block of accuracy class O and a thickness of 1 mm. Enter the actual dimension of the gage into the software.2. Press the button on the MarCheck.3. Make contact with the gage block and activate the measuring force for outer measurements.4. Slide the gage block back and forth between the measuring surfaces until it wrings.5. Press the button to accept the measuring value.6. Deactivate the measuring force.7. Repeat points 3 to 6 of the calibration procedure. Calibration is complete. A calibration factor will be computed.