| Display |
4 digits, 10 mm LCD, with blue backlight |
| Parameters |
Ra、Rz、Rq、Rt |
| Measuring Range
|
Ra , Rq : 0.05~10.00 um / 1.000~400.0 uinch
Rz , Rt : 0.020~100.0 um / 0.780~4000 uinch
|
| Accuracy |
≤ ± 10% |
| Fluctuation of display value |
Not more than 6% |
| Sensor |
Test Principle |
Inductance type |
| Radius of Probe Pin |
10 um |
| Material of Probe Pin |
Diamond |
| Measurement Force of Probe |
16 mN(1.6 gf) |
| Probe Angle |
90° |
| Vertical Radius of Guiding Head |
48 mm |
| Maximum driving stroke |
17.5 mm / 0.7 inch |
| Cutoff length (l) |
0.25 mm / 0.8 mm / 2.5 mm optional |
| Driving speed |
Sampling |
When Length = 0.25 mm, Vt = 0.135 mm/s |
| When Length = 0.8 mm, Vt = 0.5 mm/s |
| When Length = 2.5 mm, Vt = 1 mm/s |
| Returning |
Vt = 1 mm/s |
| Resolution |
0.001 um, if reading < 10um |
| 0.01 um, if 10um ≤ reading ≤ 100um |
| 0.1 um, if reading ≥ 100um |
| Evaluation length |
1~5 L optional |
| Auto Power Off |
| Operating conditions |
Temperature: 0~50 ℃ Humidity: < 80 %RH |
| Power Supply |
4 x 1.5v AAA size (UM-4) battery |
| Dimensions |
Main Unit |
149 x 67 x 29 mm |
| Measuring Base |
185 x 56 x 47 mm |
| Weight |
485 g |