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| Product Name | LANDTEK SRT-6200S Roughness Gauge | Leeb leeb451 Roughness Gauge |
| Product Price | $770.00 | $687.00 |
| Details | Details | |
| Model comparison | ||
| Principle | Contact | Contact |
| Instrument Type | Handheld | Handheld |
| Display Type | Digital | Digital |
| Measurement Function | Surface Roughness | Surface Roughness |
| Measurement parameters | Ra Rz Rq Rt | Ra Rz Rq Rt |
| Test object | Sand blasting shat blasting workpiece | Sand blasting shat blasting workpiece |
| Measuring Range | >50μm | 5-50μm |
| Accuracy | ±10% | ±15% |
| Sampling Length | Multi-range | Multi-range |
| Sensor Configuration | Standard | Standard |
| Applicable Workpiece | Flat Surface/Shaft | Flat Surface/Shaft Groove/Slot |
| Parameter comparison | ||
| display | Blue backlight, 4-digit display, 10mm LCD | |
| Measurement parameter | Ra、Rz、Rq、Rt | Ra、Rz、Rq、Rt |
| Measurement Range | Ra，Rq : 0.05~10.00 um / 1.000~400.0 uinch；Rz，Rt : 0.020~100.0 um / 0.780~4000 uinch | Ra:0.05~10.0μm；Rz:0.1~50μm |
| Accuracy | Not more than +/- 10% | |
| Indication variability | Not more than 6% | ＜12％ |
| Sensor Measurement principle | Inductance | |
| Sensor radius | 10 um | |
| Sensor material | diamond | piezoelectric crystal |
| Sensor force measurement | 16 mN(1.6 gf) | |
| Sensor Angle | 90° | |
| Sensor longitudinal radius | 48mm | |
| Sensor Max Drive Travel | 17.5mm / 0.7 inch | |
| Sensor sampling length | 0.25mm，0.8mm，2.5mm | |
| Driving speed measurement | When sampling length = 0.25mm, Vt = 0.135mm/s; when sampling length = 0.8mm, Vt = 0.5mm/s; when sampling length = 2.5mm, Vt = 1mm/s | |
| When driving speed returns | Vt = 1mm/s | |
| resolution | 0.001 um Measured value < 10 um; 0.01 um Measured value 10 um ≤ Measured value ≤ 100 um; 0.1 um Measured value ≥ 100 um | |
| Evaluation length Ln | 1~ 5 L optional | |
| Automatic shutdown | support | |
| Operating environment | Temperature: 0~ 50℃ Humidity: < 80% RH | |
| power supply | 4 AA batteries | 3.7V lithium-ion battery |
| Host Dimensions | 149 x 67 x 29mm | |
| Dimensions of measurement base | 185 x 56 x 47mm | |
| weight | 485 g | |
