Specifications
| Lighting method | 0/d |
| Light spectrum conditions | Overall Response is equivalent to the tristimulus values X, Y, Z under CIE standard illumination D65 and color-matching function of 10 ° field of view |
| Repeatability | s (Y) ≤0.3；s (x)，s (y) ≤0.001；ΔE(L*a*b*)≤0.2。 |
| Stability | Δh (Y) ≤0.2 |
| Precision | ΔY≤2 ΔX、ΔY≤0.02 |
| Color system Color | X、Y、Z； Y、x、y；L*、a*、b*； L、a、b； L*、U*、v*； L*、C*、h |
| Color system color difference | △E(L*a*b*) 、 △E(lab)、△E(L*u*V*)、△L*、△C*、△H* |
| Color system Yellow index | YI、△YI |
| Color whiteness | Gantz whiteness, CIE recommended binary linear whiteness |
| Color system blue light whiteness | W=B |
| Surface Color System Taube (Tabble) | American Materials Association ASTM recommendation, W = 4B-3G |
| Irradiated sample area | Φ20 |
| Display mode | 7-Inch touchscreen display |
| Communication interface | USB interface, U disk interface |
| Data storage | 1000 sets of Data storage space, with data playback |
| Performance class | JJG 595-2002 verification procedures: Level 1 |
| Printer model | Thermal printer RD TH-32SC (optional) |
| Power Supply | 220V ±22V，50Hz± 1Hz，30w |
| Instrument size | Host 365 × 290 × 169 (mm), test head φ 120mm × 170mm |
| Net Weight of instrument | 7.5kg |
| Surface color system Hunter whiteness | GB/T 5950-1996 "Methods for measuring the whiteness of building materials and Non-metallic mineral products", Wh = 100- [ (100-L) 2 + a2 + b2] 0.5; |
| Surface color system building materials whiteness | GB/T 5950-1996 "Building materials and Non-metallic mineral products whiteness Measuring method" adopted, Wj = Y + 400x-1000y + 205.5; |
| Color system yellowness index | ASTM E 313,Yi=100 (1.3013X-1.1498Z) |
Packing list
host X1, manual X1, certificate X1, warranty card X1
After-sales instructions
Warranty days: 365 days
1. For product quality problems caused by non-human products of instruments and equipment, the manufacturer will provide free warranty services during the warranty period;
2. There is no warranty period for fragile and consumable parts, and if you find product quality problems after receiving the goods, please apply for return and exchange within 7 days, and you will not wait for the overdue ones;
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/42616/Specification.html , which is only used by users who purchase commodities from the NBCHAO.