Original DOHO Four-caliber Colorimeter DR -19 Tobacco Leaf Screening C

Product model DR-19 Illumination mode 8°/d (8° illumination, diffuse reflection reception); in line with standard CIE No.15, GB/T 3978 Lighting source LED light source Sensor Silicon photodiode Measuring caliber Four calibers: Φ8mm platform measuring caliber, Φ4mm platform measuring caliber, Φ4mm tip measuring caliber, Φ40mm large measuring caliber Color space CIE LAB, XYZ, LCh, CIE RGB, CIE LUV Color difference formula ΔE*ab,ΔE(h),ΔE*uv,ΔE*94,ΔE*cmc(2:1),ΔE*cmc(1:1),ΔE*00 Other chromaticity indexes WI (ASTM E313, ISO R457, Hunter), YI (ASTM E313), stain fastness, color fastness, JPC79, BFD (1.5:1), FMCII Observer angle CIE 10° standard observer Observation light source D65, A, C, D50, F2, F6, F7, F8, F10, F11, F12 Display chromaticity value, color difference value/graph, pass/fail result, color deviation Measuring time 1.5s Repeatability Φ8mm/ΔE*ab within 0.03 (Φ8, after the instrument is warmed up and corrected, the average value of 30 measurements on the whiteboard at an interval of 5s) Difference between sets ΔE*ab within 0.4 (measured average value of 12 color plates of BCRA series Ⅱ) Size 205X67X80mm Weight 500g Positioning method Dual positioning: cross positioning, light positioning Battery level: Rechargeable Li-ion battery 3.7V @ 3200mAh Illumination light source life 5 years greater than 1.6 million measurements Display TFT true color 2.8inch@（16:9） Interface USB Store data 100 standard samples, 20000 samples Operating temperature range 0~40°C (32~104°F) Storage temperature range -20~50°C (-4~122°F) PC software CQCS3 quality management software Standard accessories: Power adapter, manual, CQCS3 quality management software (download from official website DOHO.cn), data cable, whiteboard box, wrist strap, lithium battery, Φ8mm platform measuring caliber, Φ4mm platform measuring caliber, Φ4mm tip measuring caliber, Φ40mm large measuring caliber Optional accessories: micro printer, powder test box