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| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | WSC-2S |
| Instrument Type | Desktop |
| Optical Geometry | 0°/45° integrating sphere |
| Illuminant | CIE Standard Illuminant D65 (10° observer) |
| Spectral Response | Equivalent to CIE 1964 10° standard observer tristimulus values X, Y, Z |
| Repeatability | δu(Y) ≤ 0.2, δu(x) ≤ 0.003, δu(y) ≤ 0.003 |
| Display | 7-inch capacitive touch screen |
| Color Spaces | CIE XYZ, CIE Yxy, CIELAB (L*a*b*), CIELCh, CIELUV, Hunter Lab |
| Whiteness Indices | Ganz, CIE Blue-Reflectance (W = B), ASTM E313 Yellowness Index (YI), Hunter Whiteness (Wh), Building Materials Whiteness (Wj), Taber (W = 4B − 3G) |
| Data Storage | 1,000 measurement sets with recall capability |
| Interfaces | USB host/device, USB flash drive support |
| Compliance | JJG 595–2002 (Class I), GB/T 13173–2021, GB/T 5950–2008, GB/T 17644–1998, ASTM E313, ISO 2470–1 |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | WSC-1B / WSC-2B / WSC-3B |
| Optical Geometry | 8°/d (diffuse illumination, 8° viewing) |
| Illuminant Options | D65, D50, A |
| Observer Angle | 10° standard observer |
| Spectral Response | Silicon photodiode array |
| Repeatability | ≤0.07 ΔE*ab (WSC-1B), ≤0.06 ΔE*ab (WSC-2B & WSC-3B), measured on white calibration tile (n=30) |
| Inter-instrument Agreement | ≤0.80 ΔE*ab (WSC-1B), ≤0.50 ΔE*ab (WSC-2B), ≤0.40 ΔE*ab (WSC-3B) |
| Measurement Aperture | Φ4 mm (WSC-1B), Φ8 mm (WSC-2B), dual Φ8 mm / Φ4 mm (WSC-3B) |
| Display | 2.8″ TFT true-color LCD |
| Color Spaces | CIE L*a*b*, L*C*h*, XYZ, RGB, L*u*v*, YI (Yellowness Index), WI (Whiteness Index), Color Fastness |
| Color Difference Formulas | ΔE*ab, ΔE*C*h*, ΔE*94, ΔE*CMC, ΔE*00, ΔE*Hunter |
| Storage Capacity | 100 reference standards + 20,000 sample measurements |
| Power | Rechargeable lithium-polymer battery (3.7 V, 3200 mAh) |
| charging time | 8 h |
| Operating Environment | −10 °C to 40 °C, 0–85% RH (non-condensing) |
| Dimensions & Weight | 205 × 67 × 80 mm / 450 g (WSC-1B) |
| Compliance | GB/T 3977–2008, GB/T 5698–2001, GB/T 7921–2008, JJG 595–1989 |
| Brand | YDWG |
|---|---|
| Origin | Shanghai, China |
| Model | WSF-1S |
| Product Type | Spectrophotometric Colorimeter |
| Instrument Type | Benchtop |
| Optical Geometry | d/8° Integrating Sphere |
| Light Source | Tungsten Halogen Lamp |
| Spectral Range | 400–700 nm |
| Repeatability | σu(Y) ≤ 0.5, σu(x), σu(y) ≤ 0.003 |
| Wavelength Accuracy | ±2 nm |
| Transmittance Accuracy | ±1.5% |
| Stability | ΔY ≤ 0.4 |
| Colorimetric Accuracy | ΔY ≤ 2, Δx/Δy ≤ 0.02 |
| Measurement Aperture | Φ20 mm |
| Display | 7-inch Touchscreen (Chinese UI) |
| Compliance | GBT 3978–2008 (equivalent to CIE No. 15:2004 under D65/A/C illuminants and 2°/10° standard observer) |
| Color Spaces | CIE XYZ, Yxy, CIELAB (L*a*b*), CIELUV (L*u*v*), CIELCH, Hunter Lab, Munsell, MI, CMYK, YI, Whiteness (Ganz, CIE, Blue Light, Taubel) |
| Color Difference Metrics | ΔE*ab, ΔEab, ΔE*uv |
| Communication | USB, RS232, USB Flash Drive Support |
| Power Supply | 220 V ± 22 V, 50 Hz ± 1 Hz, 70 W |
| Dimensions | 475 × 280 × 152 mm |
| Net Weight | 8 kg |
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