Surface Roughness Tester

We are offering surface roughness tester,
display： 4 digits, 10 mm lcd, with blue backlight
parameters: ra, rz, rq, rt
measuring range
ra, rq: 0.005-16.00um/0.020-629.9uinch
rz,rt: 0.020-160.0um/0.780-6299uinch
accuracy: ≤±10%
fluctuation of display value: not more than 6%
sensor :
test principle: inductance type
radius of probe pin: 5um
material of probe pin: diamond
dynamo-measurement of probe: 4mn(0.4gf)
probe angle: 90°
vertical radius of guiding head: 48mm
maximum driving stroke: 17.5mm/0.7inch
cutoff length (l): 0.25mm / 0.8mm / 2.5mm optional
evaluation length: 5l
driving speed:
sampling length = 0.25mm vt=0.135mm/s
sampling length = 0.8mm vt=0.5mm/s
sampling length = 2.5mm vt=1mm/s
returning vt=1mm/s
profile digital filter
filtered profile: rc
filtered profile: pc-rc
filtered profile: gauss
non-filtered profile: d-p
resolution : .001μm if reading ＜10μm
0.01μm if 10μm≤reading＜100μm
0.1μm if reading ≥100μm
evaluation length : 5 cut-off
power li-ion battery: rechargeable
operating conditions: temp. 0~50℃
humidity .