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    Product Name KairDa NDT120 Roughness Gauge KairDa NDT160 Roughness Gauge
    Product Price $942.00 $1243.00
    Details Details
    Model comparison
    Principle Contact Contact
    Instrument Type Portable Handheld
    Display Type Digital Digital
    Measurement Function Surface Roughness Waviness Contour/Form Surface Roughness
    Measurement parameters Ra Rz Rq Rt Rp Rv RSm Rmr(c) Others Ra Rz Rq Rt Rp Rv RSm Rmr(c) Others
    Test object General workpiece General workpiece
    Measuring Range >50μm >50μm
    Accuracy Others ±10%
    Sampling Length Multi-range Multi-range
    Sensor Configuration Standard Small Bore Groove Curved Surface Lateral/Extension Standard Small Bore Groove Curved Surface Lateral/Extension
    Applicable Workpiece Flat Surface/Shaft Groove/Slot Curved Surface Deep Hole Narrow Space Large/Fixed Workpiece Flat Surface/Shaft Groove/Slot Curved Surface Deep Hole
    Parameter comparison
    Measurement parameter Ra,Rz=Ry(JIS),Rq,Rt=Rmax,Rp,Rv,R3z,R3y,RzJIS,Rs,Rsk,Rku,Rsm,Rmr Ra,Rz,Rq,Rt,Rp,Rv,R3z,R3y,Rz(JIS),Rs,Rsk,Rsm,Rku,Rmr,Ry(JIS),Rmax,RPc,Rk,Rpk,Rvk,Mr1,Mr2
    Measurement Range Ra：0.005um~16.00um Z-axis (vertical ）： +/- 80μm/+/- 160μm (enhanced); X-axis (horizontal): 20mm
    Display Range Ra,Rq：0.005um~16um；Rz,Rv,R3z,Rt,Rp,R3z：0.02um~160um；Rsm,Rs：1mm；Rmr：0~100%；Rsk：0~100%
    Indication accuracy 0.001um 0.001μm
    Range ±20um，±40um，±80um
    Sampling length 0.25, 0.80, 2.50, automatic 0.25,0.8,2.5mm
    evaluation length 1L~ 5L (optional, L is the sampling length) Ln=lr*n n=1~5
    Measurement stroke length 3L~ 7L (optional, L is the sampling length)
    Maximum drive stroke length 17.5mm / 0.71inch
    minimum drive stroke length 1.3mm / 0.052inch
    Indication Error ≤±7% Not more than +/- 10%
    Indication variability ＜6% Not more than 6%
    tip angle 90°
    Measurement profile Asperity, ripple, original contour Linear dispersion, asperity profile, direct profile
    filter RC,PC-RC,Gauss,D-P RC,PC-RC,Gauss,D-P
    Internal storage capacity 100 sets of data
    Interface USB
    Battery Built-in lithium-ion rechargeable battery, length 5cm, width 3.3cm, thickness 0.4cm
    Dimension 141*55*40mm Host: 64 * 53 * 160mm Driver: 23 * 27 * 115mm
    Product weight 400g About 380g
    Operating environmental conditions Temperature: -20℃~ 60℃; relative humidity: < 90%; no vibration around, no corrosion medium
    Optional Accessories Surface Sensor, Pinhole Sensor, Groove Sensor, Deep Groove Sensor, Extension Rod, Micro Printer, KA620 measurement platform