SURFACE ROUGHNESS TESTERS
SURFTEST 10
Flexible measurement
Measuring principle
This instrument has a sensor tip, using inductance type principle for measuring roughness. It is traversed
over the sample, using a motor assembly, and its roughness will cause the sensor to be displaced. This
displacement causes inductance of the sensor inductor to change and produces an analog signal
proportional to the surface roughness.
Applications
Roughness is an important parameter when trying to find out whether a surface is suitable for a certain
purpose. Rough surfaces often wear out more quickly than smoother surfaces. Rougher surfaces are
normally more vulnerable to corrosion and cracks, but they can also aid in adhesion. A roughness tester is
used to quickly and accurately determine the surface texture or surface roughness of a material. Few
industries include automobile manufacturing and spare parts processing, machinery parts processing,
metal processing equipment and accessories, surface engineering treatment, mold casting and precision
manufacturing.
Features
▪ Parameter measurement of Ra and Rz.
▪ Extended cable probe for flexible measurement.
▪ Backlit LCD display with indication for proper probe alignment.
▪ Data storage and recall.
▪ Metric/Imperial conversion.
Technical Specifications
Model Metrix+ Surftest 10
ISO 4287 International standard, DIN 4768 German standard, JISB
Standards
601 Japanese standard, ANSI B46.1 American standard
Ra : 0.05 ~ 10.00 um / 1.000 ~ 400.0 uinch
Measuring range
Rz : 0.1 ~ 50.0 um / 4.000 ~ 2000 uinch
Accuracy < + 15%
0.001um when reading <10um
Resolution 0.01um when reading >= 10um and <100um
0.1um when reading >= 100um
Fluctuation of display value <=10%
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Filter contour : RC, PC-RC, Gauss
Profile Digital Filter
Non-filter contour : D-P
Test Principle Induction type
Radius of probe pin 10um default
Material of probe pin Diamond
16mN(1.6gf) for 10um and
Measurement force of probe
Sensor 0.75mN(0.075gf) for 2um
Probe angle 90o
Vertical radius of guiding head 48mm
Maximum driving stroke 12.5mm / 0.5inch
Cut off length 0.25mm / 0.8mm / 2.5mm
Vt = 0.135mm/s if sampling
length = 0.25mm
Vt = 0.5mm/s if sampling length
When measuring
Driving speed = 0.8mm
Vt = 1mm/s if sampling length =
2.5mm
During return Vt = 1mm/s
Probe measuring range +80um
Evaluation length 1 ~ 2 selectable
Power Li-ion rechargeable battery
Working conditions Temperature : 0 ~ 50oC ; Humidity : <85%
Main unit, extended cable probe, standard sample plate, charger
Standard accessories
with adapter, adjustable leg, operational manual
Optional accessories PC interface, adaptor sleeve(extension rod), deep groove sensor
Model and Specifications subject to change without notice.
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