Main technical parameter: | |
1.Lighting/ observation condition: o/d | |
2.Standard lighting object:: D65 standard light source. | |
3.The inner light source of the instrument: 6V、10W tungsten hologen lamp. | |
4.Standard observer: 10°viewing field. | |
5.Measuring Holes diameter: Φ18㎜ | |
6.Stability: zero drift ≤0.1, data drift ≤0.2 | |
7.Data displaying accuracy: x、y±0.0001 | |
8.The measuring accuracy: (whiteness) W≤1, repeatability: (whiteness) △W≤0.2. | |
9.Power supply: 220V±10%,50Hz |