Rz = average roughness
The average roughness depth Rz is the arithmetic mean of the largest single-order depths of several adjacent individual measurement sections.
Ra = arithmetic mean roughness
Ra is the generally recognized and internationally applied roughness parameter. It is the arithmetic mean of the absolute values of the profile deviations within the reference distance. The measured value Ra is always smaller than the Rz value determined on the same roughness profile.
Rt = maximum roughness
The maximum surface roughness Rt is the distance between the highest and the lowest point of the measuring section.
Rq = Square Mean Roughness
Rq is the root mean square of all ordinate values within the individual measurement distance l. Rq corresponds to the designation RMS (Root Mean Square).
Measurement parameters | Ra, Rq, Rsm, Rsk, Rz, Rt, Rp, Rv, Rc |
Measuring ranges | Ra, Rq, Rc: 0.005 μm ... 16 μm Rz, Rt, Rp, Rv: 0.02 μm ... 200 μm Rsm: 5 μm ... 1000 μm Rsk: -1 ... 1 |
Radius stylus tip | 5 μm |
Material stylus tip | Diamond, 90° angled |
Max. Recommended force for static measurement | 4 mN (0.4 gf) |
Measuring principle | Inductive |
Radius longitudinal guide bar | 45 mm / 1.8 in |
Standards | ANSIB46.1/ASMEB46.1 (DIN EN ISO 4287) |
Maximum driving distance | 15 mm / 0.6 in |
Cut-off wavelength (cut off) | 0.135 mm / s at cut-off wavelength: 0.25 mm 0.5 mm / s at cut-off wavelength: 0.8 mm 1 mm / s at cut-off wavelength: 2.5 mm Reversing speed: 1 mm / s |
Measurement accuracy | <± 10% |
Repeatability | <6% |
Display | OLED |
Units | μm / μinch (switchable) |
Interface | Micro USB |
Power supply | Rechargeable Li-ion battery |
ex. VAT, ex. delivery costs
Probe for the PCE-RT 1200 and PCE-RT 2000 for measuring the roughness of grooves.
- Probe for grooves
- Width > 2.5 mm
- Depth < 10 mm
N.B. It is recommended to use this sensor with the test stand PCE-RT2000-Teststand.
ex. VAT, ex. delivery costs
Curved surface sensor suitable for PCE-RT 1200 und PCE-RT 2000. The sensor is used to measure surfaces with radii.
- Probe for curved surfaces
- Radius > 3mm for PCE-RT 1200 / PCE-RT 2000
N.B. It is recommended to use this sensor with the test stand PCE-RT2000-Teststand.
ex. VAT, ex. delivery costs
ex. VAT, ex. delivery costs
ex. VAT, ex. delivery costs