Retroreflectometer
Description:
The protable handheld retroreflectometer with memory for determination of night visibility and day visibility of road markings as well as ambient temperature and relative humidity
Technical Specification:
| Equivalent observation distance | 30 m, according to CEN-geometry |
| Observation angle | EN 1436: 2.29°, ASTM E1710: 1.05° |
| Illumination angle RL | EN 1436: 1.24°, ASTM E1710: 88.76° |
| Illumination angle Qd | diffuse |
| Measuring sensor adaption | V(λ) |
| Measuring area (WxL) | 52 mm x 218 mm (2.05" x 8.58“) |
| Measuring range (RL) | 0 - 4’000 mcd•m-2•lx-1 |
| Measuring range (Qd) | 0 - 400 mcd•m-2•lx-1 |
| Measuring range profiled markings | 5 mm (0.20“), up to 12 mm (0.47“) with instruction |
| Repeatability | ± 2% |
| Reproducibility | ± 5% |
| Measuring time RL/Qd | ≈2 s |
| Measuring time single | ≈1 s |
| Memory | internal flash memory |
| Memory size | 1 GB |
| Memory capacity | 50‘000 measurements |
| Interfaces | Host USB (type A), Client Mini USB (type B) |
| Interface optional | bluetooth® |
| Touchscreen display | 5.7“ colour TFT (LCD), LED backlight, VGA resolution |
| Accumulator | Li-Ion-Mn 14.4V / 6.5 Ah |
| Operating temperature | -10°C - +50°C (14°F - 122°F), non condensing |
| Storage temperature | -20°C - +60°C (-4°F - 140°F) |
| Material housing | anodised aluminium |
| Dimensions (LxWxH) | 560 mm x 190 mm x 280 mm (22.05“ x 7.48“ x 11.02“) |
| Weight | 6.8 kg (14.99 Ibs) |
| Standards | EN 1436 (RL/Qd), ASTM E1710 (RL), ASTM E2302 (Qd), ASTM E2177 (RLwet) |
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