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Surface Roughness Tester - ASI-TR110

Surface Roughness Tester - ASI-TR110

Features

Our Model of TR110 Plus has four parameter as compared to only two of other brands Surface roughness, for purposes of this forum, is the result of some machining process and its effect on the material surface in question. Skid type surface roughness testers are common instruments used on the shop floor. A diamond stylus is traversed across the specimen and a piezoelectric pickup records all vertical movement. Peaks and valleys are recorded and converted into a known value of a given parameter. Parameters differ in how they approach looking at peaks and valleys. The most popular parameter is
“Ra”. Ra is commonly defined as the arithmetic average roughness. While the Ra parameter
is easy and efficient, there are other parameters that can be more specific and useful
depending on the application requirements. It is the parameters that enable us to define
surface roughness.
Today, for the purpose of checking Ra values, the use of portable, hand held, surface
roughness testers are not only economical, but are digital and easy to use. These surface
roughness testers are a given necessity for any shop floor that receives work with Ra
requirements

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FEATURES
1 Pocket-size & economical price
2 Large measuring range suitable for most materials
3 Measures flat, outer cylinder and sloping surface
4 Both Ra and Rz parameters in one instrument
5 Features external calibration at keyboard
6 Standard conform to ISO and DIN
7 Rechargeable batteries, work while charging
8 TR110 is equipped with Li-ion battery and backlight
MEANING OF DIFFERENT PARAMETERS
Ra Arithmatic Mean Deviation of the Profile – the arithmetic mean value of the deviation of the profile within the sampling length
Rz The maximum height of irregularities – the distance between the maximum depth of the profile peaks and the maximum depth of the profile valleys within the sampling range
Rq Root mean square deviation of the profile of deviation
Rt Total peak to valley height – the sum of the height of the highest peak and the depth of the deepest valley over the evaluation length