Rz = average roughness
The average roughness Rz is the arithmetic mean of the largest single roughness depths of several adjacent individual measuring sections.
Ra = arithmetic centers 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 line.
The measured value Ra is always smaller than the Rz value determined on the same roughness profile.
| Roughness | |
| Roughness value | Ra, Rq |
| Measuring range | 0,005 ... 16 µm |
| Resolution | 0,001 µm |
| Accuracy | <±10 % |
| Roughness | |
| Roughness value | Rz, Rt |
| Measuring range | 0,02 ... 200 µm |
| Resolution | 0,01 µm |
| Accuracy | <±10 % |
| General technical data | |
| Repeat accuracy | <6 % |
| Measuring functions | Ra, Rz, Rq, Rt |
| Measuring functions (additional information) | Ra / Rq - 0.005 µm ... 16 µm Rz / Rt - 0.02 µm ... 200 µm |
| Units | µm, μinch |
| Display type | OLED |
| Storage medium | Internal memory |
| Storage capacity | 20 Values |
| Interface | Micro-USB |
| Standard(s) | ANSIB46.1/ASMEB46.1, DIN EN ISO 4287, ASMEB46.1 |
| Sensor | inductive |
| Operating time | 3000 Measurements |
| Automatic power-off from...to | 1 ... 30 min. |
| Cut-off wavelength | 0.25 mm / 0.8 mm / 2.5 mm |
| Key | - Probe tip radius - 5 µm - Probe tip material - diamond, 90° angled - Probing speed: 0.135 mm/s at limit wavelength: 0.25 mm 0.5 mm/s at limit wavelength: 0.8 mm 1 mm/s at limit wavelength: 2.5 mm - Return speed: 1 mm/s |
| Maximum traverse distance | 15 mm |
| Menu language | English, English (GB) |
| Protection class (device) | IP31 |
| Power supply | 3.7 V |
| Connector type | Device-europlug |
| (Rechargeable) battery | 1 x 3,7 V internal , Lithium-ion polymer battery |
| Capacity | 1500 mAh |
| Operating conditions | 0 ... 50 °C , 10 ... 90 % RH |
| Storage conditions | 0 ... 50 °C , 10 ... 90 % RH |
| Dimensions ( L x W x H ) | 150 x 60 x 43 mm |
| Weight | 370 g |