L-34LMitutoyo operates a policy of continuous improvement that aims to provide the customer with the benet of the latest technological advances.Therefore the company reserves the right to change any or all aspects of any product specication without notice.Easy operation, compact and lightweight, designed for use on the shop-oor right beside the production line.•D.A.T. (Digimatic Adjustment Table) function aids adjustments such as centering and leveling, and substantially reduces the time required for preliminary setup operations.What is the D.A.T. (Digimatic Adjustment Table) function? •Icons on the built-in operation panel in the main unit allows easy operation for anyone.•Compact, lightweight design from incorporating electronic components inside the main unit.•Icons representing geometric tolerances, such as roundness and coaxiality, are used. The measurement can be started just by pressing the desired icon and then the start button.Dedicated analysis unit type (RA-120)•Compact, lightweight design is realized by incorporating electronic components inside the main unit.•Provides functions comparable to upper grade models, such as a Z axis equipped with digital scales, a wide range detector, and continuous inside/outside diameter measurement.•ROUNDPAK, a data analysis program employs Windows OS and archived higher level of analysis.Data analysis by PC (RA-120P)Feed the digital micrometerhead of the trntable bythe deviation displayed.PreliminarymeasurementDisplay of misalignmentsSimple adjustmentCentering/leveling completeCentering range: ±3 mmLeveling range: ±1° Preliminary measurement oftwo cross-sections ’A’ and ‘B’.Initial misalignmentof centers atturntable surface Initial misalignment of axes Turntable axisTurntable axis WorkpieceWorkpieceRoundtest RA-120/120PSERIES 211 — Roundness Measuring InstrumentsRA-120PThe analysis capabilities for the various models (RA-120/120P/10) vary. For details, refer to page L-41.Refer to the Roundtest RA-120/120P (Catalog No.E4323) for more details.SPECIFICATIONSModel No.RA-120RA-120PTurntableRotational accuracy(JIS B 7451-1997)Radial direction(0.04+6H/10000)µm H: Probing height (mm)Axial direction(0.04+6X/10000)µm X: distance from the center of rotation (mm)Rotational speed6rpmEffective diameter of the tableø150mmCentering adjustment range±3mmLeveling adjustment range±1°Maximum probing diameterø280mm (ø380mm: for the vertical position when detector holder is installed reversely, the maximum probing height is up to 50mm from the table top.)Maximum loading diameterø440mmMaximum loading mass25kgVertical movementVertical travel280mm from the table topMaximum probing height280mm from the table top (480mm: for the vertical position when detector holder is installed reversely)Maximum probing depthø30×100mm (depth), ø7×50mm (depth)X axisTravel range 165mm (–25mm to 140mm from the rotation center)Detector*1,*2Measuring rangeStandard: ±1000µmMeasuring force100mN (± 30%)Stylus tip formø1.6 Carbide*1: Auxiliary stage for a low-height workpiece (optional) is required for the measurement 20mm or less in the radial direction from the center point of the table and 20mm or less from the table top.*2: Only the standard length stylus is applicable to this detector. The long type cannot be used.An inspection certicate is supplied as standard. Refer to page X for details.RA-120


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