Surface Roughness Tester is widely used in production site to measure surface roughness of various machinery-processed parts, calculate corresponding and clearly display all measurement parameters。
| Specifications | Ordering Information | ||
| BGD 930 | BGD 931 | ||
| Standard | ISO4287,DIN4768,JIS B,ANSI 146.1 | ||
| Measuring range | Ra | 0.005～16μm/1.000～629.9μinch | 0.050～10μm/1.000～400.0μinch |
| Rq | 0.005～16μm/1.000～629.9μinch | —- | |
| Rz | 0.020～160μm/0.780～6299μinch | 0.020～100μm/0.780～4000μinch | |
| Rt | 0.020～160μm/0.780～6299μinch | —- | |
| Accuracy | ≤±10% | ||
| Resolution | 0.001μm（reading＜10μm） | ||
| 0.01μm（10μm≤reading＜100μm） | |||
| 0.1μm（reading ≥100μm） | |||
| Fluctuation of display value | ≤6% | ||
| Profile digital filter | Filtered profile | RC,PC-RC,GAUSS | —– |
| Non- filtered profile | D-P | —– | |
| Sensor | Radius | 5μm | 10μm |
| Material | Diamond | Diamond | |
| Measuring force | 4mN（0.4gf） | 16mN（1.6gf） | |
| Probe angle | 90° | 90° | |
| Vertical radius of guiding head |
48mm | 48mm | |
| Maximum driving stroke | 17.5mm/0.75inch | ||
| Cutoff length | 0.25mm,0.8mm,2.5mm | ||
| Driving speed | Measuring | Sampling length = 0.25mm When Vt=0.135mm/s | |
| Sampling length = 0.8mm When Vt=0.5mm/s | |||
| Sampling length = 2.5mm When Vt=1mm/s | |||
| Returning | Vt=1mm/s | ||
| Evaluation length | 1～5L selectable | ||
| Metric/Imperial | Conversion | ||
| Auto off | √ | ||
| Memory | 7 Groups | —– | |
| Pc interface | RS-232C | —– | |
| Built in Li-ion battery | Rechargeable | ||
| Operating condition | TEMP | 0～50℃ | |
| Humidity | ﹤85%RH | ||
| Dimension | 140×52×48mm（5.5×2.2×1.9inch） | ||
| Net Weight | 420g | ||
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