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Item # SV-C3100S4, Formtracer SV-C3100
Series 525 - Surface Roughness/Contour Measuring System

The Roundtest RA-120 / 120P are compact, affordable, and simple-to-use device for measuring part geometry on the shop floor. It also provides such superb data analysis capabilities as requires with laboratory roundness measuring instruments and has a ±1000µm wide range detector and precision turn table with excellent rotation accuracy.

The RA-120 is a dedicated processor based model which controls all operations via the control panel incorperated in the main unit.

  • Notched workpiece measurement
  • Recalculation of datumn/measured data
  • Limaçon function compensates for eccentricity.
  • Rotation of 3D display
  • Real time diaplay
  • Simplified layout (divided layout)
  • Hair line, Auxiliary line, Hidden line, Fill line
  • Color settting of measured data
  • Offsetting or recorded profile generation
  • Zooming of recorded profile
  • Data deletion
  • Graph analysis (displacement/angle between measured points)
  • Power spectrum analysis
  • Gear tooth analysis
  • Harmonic analysis
  • Text data output (via CSV format)

See the attachment on the right for more information.

Unit of Measure: Imperial Metric Both


Dimensions (W x D x H)

450 x 360 x 636 mm


32 (main unit), 2 (air regulator) kg

Power Supply (AC)

100V AC - 240V AC, 50/60Hz V

Air Supply
Pressure - Consumption

390kPa - 30 L/min


RA-120/120P Series 211 Roundness Measuring Instruments
(PDF, 563KB)

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