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The TIME 3110 Surface Roughness Gauge is designed as a basic Profilometer gauge, it produces Ra and Rz roughness values in µm or µin.
This pocket size gauge is equipped with a sensitive diamond stylus micro sensor that drops down from the bottom of the housing.
It measures flat and sloping surfaces and outer cylinders, has a large measuring range and conforms to ISO and DIN standards.
The TIME 3110 Surface Roughness Gauge features an easy to read backlit LCD display combined with a durable case makes it suitable to use in production sites.
With a long-life Li-ion rechargeable battery, the tester has a long working time combined with a short rechargeable time, and it can be used during recharging.
The unit is easy to operate has a high accuracy and can be calibrated using the included reference specimen.
The TIME 3110 has 5 different sampling lengths, 8 – 2,5 – 0,8 - 0,25 and 0,08mm, the manual provides a table with the advised settings.
Surface roughness measurement,
Surface roughness is a variation in the material surface on a microscopic scale, it determines the visual effect of a surface, shiny or mat, and the friction of the material vs another surface sliding over it.
In a lot of cases the roughness determines the characteristics of the material or object. Things like the ability to form a seal when contacting another surface or the amount of heat and wear created from a bearing surface.
A smoother surface will also be less sensitive for dirt and bacteria growth and will therefore be easier to clean, this is important in food processing industries.
In other situation a minimum friction or higher adhesion is desired which requires a higher surface roughness.
To be able to compare the different surface roughness it is usually measured in Ra or Rz and will be calculated in µm or µin according to ISO 21920-2:2021
Measurements are usually made using a mechanical gauge or a laser scanner.
Ra provides the calculated average deviation of the surface from the mean value (value if the surface was perfectly flat) of the sampling area.
Rz provides the average of variation in height between the highs and lows of 5 lines within the sample surface area
Rt shows the maximum deviation between highs and lows within the sample surface area.
Sampling Length is the benchmark’s length used to determine its surface roughness.
Evaluation length is the total sample length required to determine the roughness of the material and may include more than one sample length.
The TIME 3110 Surface Roughness Tester is delivered as a complete kit including:
Optional accessories:
| Roughness parameter | Ra, Rz |
| Units | µm / µinch |
| Measuring range | Ra: 0,05-10,0µm / Rz: 0,1-50µm |
| Cut-off lengths | 0,25mm 0,8mm 2,5mm |
| Filter | RC analogue |
| Functions | Dynamic display during testing, sound signal start-test-ready, auto-off 90 seconds, back-light LCD |
| Calibration | By CAL function |
| Min. curvature of cylindrical surface | 40mm diameter (V-grooved base) |
| Maximum tracing length | 6mm |
| Tracing speed | 1,0mm/sec |
| Accuracy | ±15% |
| Repeatability | <12% |
| Pick-up stylus | Piëzo-electric |
| Tracer tip | Diamond, Radius : 10±2,5μm Angle: 90°(+5°or -10°) |
| Operating temperature | 0°C - 40°C |
| Power | 3,6 V / Li-ion batteries / low battery indication / auto shut-off |
| Charger | 6V DC |
| Dimensions | 110mm x 70mm x 24mm |
| Weight | 160gr |
