DOHO DOHO DR-20 high accuracy color reader camera framing
Illumination mode 8 °/d, illumination light source LED light source, measurement caliber φ 8mm, measurement time 1.5s, sexual repeability φ 8mm/Delta E * ab within 0.05, using 8mm general measurement caliber, in plastics, electronics, paints, inks, Spinning & weaving clothing printing and dyeing, printing paper products, automobiles, cosmetics and food industries are widely used.
DOHOIntroduction
High-precision Colorimeter DR-20 is a domestic (CN) Colorimeter with independent property rights, equipped with Φ8mm measurement aperture, with the advantages of accurate data, simple operation, easy to carry, etc., low-power design, 3200mAh large-capacity lithium battery to ensure that high-precision Colorimeter DR-20 can measure for a long time, with CQCS3 quality management software, the user's color management in the PC computer data, compare color differences, generate test report forms, convenient for customers of high-level color management.
Product Applications
The high-precision Colorimeter DR-20 adopts a universal measuring aperture of 8mm, which is widely used in plastics, electronics, paints, inks, textile and garment printing and dyeing, printed paper, automobiles, cosmetics and food industries. SCI supports a variety of sample measurements, accurate data, easy to use, and is a practical tool for color detection in production, quality control, etc.
Technological advantages
1. Automatic correction at start-up, more accurate measurement
The display accuracy is 0.01, and the repeatability measurement accuracy is controlled within 0.05
2. 3200mAh large-capacity lithium battery, which can meet the needs of large-scale measurement
3. Ergonomic design
The high-precision Colorimeter DR-20 has a beautiful, smooth shape and comfortable grip, conforms to the structural design of ergonomics, fits the palm of the hand and is suitable for continuous detection work, so that you can use it quickly and easily.
4. Double positioning improves measurement efficiency
The DR-20 high-precision Colorimeter uses two technologies of dual positioning: light positioning (patent number: ZL201120566485.2) and camera framing positioning (patent number: ZL201120559202.1). The light positioning can quickly align the position of the measured object, and the real-time framing of the camera can accurately determine whether the measured part of the object is the center of the target, which better improves the measurement efficiency and accuracy.

5. ETC real-time calibration technology
The high-precision Colorimeter DR-20 adopts imported standard whiteboard, which is resistant to yellowing, dirt does not penetrate, and can be wiped, which ensures the long-term accuracy of the instrument. At the same time, it also adopts the innovative ETC real-time calibration technology (Every Test Calibration), and the optical system has a built-in standard whiteboard, which has reliable accuracy and repeatability in every test.
6. Color management software
The high-precision Colorimeter DR-20 is equipped with CQCS3 quality management software, which is suitable for quality monitoring and color data tabular management in various industries. The user's color management is digitized on the PC side, the color difference is compared, and the test report form is generated, which is convenient for the customer's high-level color management work.

DOHO DR-20 Color readerSpecifications
| LIST | VALUE |
|---|---|
| Lighting method | 8°/d |
| lighting source | LED light source |
| Sensor | Silicon photodiode |
| Measurement caliber | Should be 8mm measurement diameter |
| Color Space | CIE LAB,LCh,XYZ |
| color difference formula | ΔE*ab |
| Other chroma metrics | / |
| Viewing Angle | CIE 10° |
| Measurement light source | D65 |
| display mode | Chromatic value, color difference value/graph, pass/fail result, Color bias |
| Measurement time | 1.5s |
| Sexual repeability | Should 8mm/Delta E * ab within 0.05 (after instrument preheating correction, the average value of 30 whiteboard measurements at intervals of 5s) |
| Inter-instrument Agreement | ΔE*ab<0.4 |
| Dimensions | 205*70*100mm |
| Weight | About 400g (including battery) |
| Power Supply | Rechargeable lithium-ion battery 3.7V @3200mAh |
| Lighting source life | More than 1.60 million measurements in 5 years |
| Display | TFT True Color 2.8inch @(16:9) |
| Data Interface | USB |
| positioning method | Dual positioning: light positioning, camera viewfinder positioning |
| data storage | 100 master standards, 20,000 samples |
| Operating environment | 0~40℃(32~104°F) |
| Storage environment | -20~50℃(-4~122°F) |
| PC software | CQCS3 Quality Management Software |
| optional accessories | Micro printers, powder test boxes, multifunctional test components |
DOHO DR-20 Color reader Packing list
host X1, data cable X1, manual X1, certificate X1, warranty card X1
[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.
FAQ
- Application of color difference meter in construction industry
- Color difference meter lab value test method


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