Features* Be compatible with four standards of ISO, DIN, ANSI and JIS. * Multiple parameter measurement: Ra, Rz. * Highly sophisticated inductance sensor. * Small in size, light in weight and easy to use. * Manual or automatic shut down. * Metric /Imperial Conversion. * Use USB/RS-232 data output to connect with PC. * Provide Bluetooth data output choice. PrincipleWhen measuring the roughness of a surface, the sensor is placed on the surface and then uniformly slides along the surface by driving the mechanism inside the tester. The sensor gets the surface roughness by the sharp built-in probe. This roughness causes displacement of the probe which results in change of inductive amount of induction coils so as to generate analogue signal, which is in proportion to the surface roughness at output end of phase-sensitive rectifier. The exclusive DSP processes and calculates and then outputs the measurement results on LCD. SpecificationsStandardsGB/T6062,ISO4287,DIN4768,JIS B,ANSI46.1DisplayLCDParametersRa,RzRangeRa:0.05µm~10.00µm Rz:0.1µm~50.0µmAccuracy<<±15%Fluctuation of Display Value<<10%Resolution0.001/0.01/0.1SensorRadius of Probe Pin10µmMaterial of Probe PinDiamondMeasurement Force of Probe16mN(1.6gf)Probe Angle90ºVertical Radius of Guiding Head48 mmMaximum Driving Stroke12.5mm/0.5inchCutoff length(l)0.25mm,0.8mm,2.5mmDriving SpeedSamplingWhen Length=0.25mm,Vt=0.135 mm/sWhen Length=0.8mm,Vt=0.5mm/sWhen Length=2.5mm,Vt=1mm/sReturningVt=1mm/sEvaluation Length1L~2L OptionalOperating ConditionsTemp:0ºC~50ºC Humidity:<80%RHPower Supply4×1.5V AA(UM-3)BatteryDimensions128mmx80mmx30 mmWeight280gStandard AccessoriesMain UnitStandard Sample Plate SSP-100Standard Sensor SRP-100Small ScrewdriverCarrying Case ( B04 )Operation ManualOptinal AccessoriesRS-232C Cable with SoftwareBluetooth Adapter with Software
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