Lower the drive unit further until the level meter reaches the center zone. Surface contamination or building floor vibration.

I can provide the exact menu pathways or adapter recommendations for your setup. Share public link

Based on real-world usage from a forum post, here is practical advice for getting started and fine-tuning your measurements:

Before performing any certified measurement, the SV-400 must be calibrated against a traceable roughness specimen (typically an Racap R sub a reference patch). Step-by-Step Calibration Procedure

Data can be saved in native software formats, exported as a CSV file for statistical process control (SPC), or printed directly as a graphical report showing both the numeric parameters and the visual material ratio curves. 7. Maintenance and Troubleshooting Routine Maintenance Schedule

Clean the stylus tip; wipe down the granite base with a dust-free cloth.

Based on the manual's specifications table:

: Use a stereo microscope periodically to look for fracturing or flattening on the diamond tip radius. A worn tip rounds off sharp micro-valleys, causing artificially low Ra and Rz values. 4. System Calibration (Gain Adjustment)

To maintain conformance with ISO, DIN, ANSI, and JIS standards, you must calibrate the machine daily or whenever you switch out the stylus.

The diamond tip is fragile and easily chipped or detached.