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Application
Surface Roughness Tester LR310 is a high accuracy instrument for measuring surface roughness. It can be used on variety of machining parts and operates on various surfaces, not only flat but also outer cone, outer cylinder, curved, pinholes, grooves, recesses grooves and axle etc.
The LR310 allows surface roughness measurement both on metal and non-metal workpieces. especially for measurement on large and heavy workpiece, assembly line, on site. It is suitable for machining and manufacturing, quality control, inspection departments.
The LR310 is a Non Destructive Testing instrument, damage won’t caused to testing piece.
Specification
Measuring range:
o The Z axis (vertical): 320µm (-160µm~160µm), 12600μin (-6300μin~+6300μin)
o The X axis (Transverse): 17.5mm (0.69 inch)
Resolution: the Z axis (vertical)
o 0.002μm/±20μm, 0.004μm/±40μm
o 0.008μm/±80μm, 0.02μm/±160μm
Parameter:
o Ra Rz Rq Rt Rc Rp Rv R3z R3y Rz(JIS) Ry Rs Rsk Rku Rmax Rsm
o Rmr RPc Rk Rpk Rvk Mr1 Mr2
Graphic: Rmr curve, Roughness curve, Primary Profile
Filter: RC,PC-RC,Gauss,D-P
The sampling length (lr): 0.25, 0.8, 2.5mm
Assessment length (ln): Ln= lr×n n=1~5
Sensor
o Measuring principle: Inductance
o Stylus tip: Diamond, 90 cone angle, 5μmR
o Force Measuring: force<4mN, Skid force<400mN
o Probe head: hard alloy, skid radius of curvature: 40mm
o Traversing speed
lr=0.25, Vt=0.135mm/s lr=0.8, Vt=0. 5mm/s
lr=2.5, Vt=1mm/s Return Vt=1mm/s
o Precision: 0.001μm
Tolerance: Not more than ±（5nm+10%A) A stands for the standard specimen RA value( tolerance not more±10% )
Residual Profile: Not more than 0.010μm
Repeatability: not more than 3%
Power supply: Built-in Lithium ion battery 3200mAh, Charger :DC5V
Outline dimension: Main unit: 158×55×52mm drive unit: 23×27×115mm
Weight (main unit): Around 380g
Zoom of height adapter: 40mm
Working Environment
o Temperature: – 20℃ ~ 40℃
o Humidity: < 90% RH
Store and Transportation
o Temperature: – 40℃ ~ 60℃
o Humidity: < 90% RH
Optional accessory: Magnetic Base, height gauge adapter, curved sensor, small hole sensor, deep groove sensor, pinhole sensor, Extending Rod, Right Angle Rod, mini printer, 200mm platform, 300mm marble platform, software, mobile APP
