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Phone
13713390599
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Address
No.1 Dahua Road, Tianliao Industrial Zone, Shipai Town, Dongguan City, Guangdong Province
Product Categories
Dongguan Dahua Testing Equipment Co., Ltd
Colorimeter, colorimeter
NegotiableUpdate on 11/25
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Overview
Colorimeter, colorimeter
Product Details
Application:
Color difference meters are widely used in industries such as plastics and printing. Based on the Lab and Lch principles of CIE color space, the measurement results will accurately display the color difference △ E and △ Lab value between the sample and the tested sample.
Widely used in color fields such as textiles, toys, printing and dyeing, plastics, paints, inks, printing, pigments, chemicals, ceramics, footwear, leather, hardware, food, cosmetics, etc.
Product Features:
1. Automatically compare the color differences between the sample and the inspected product, output three sets of CIE_Lab data and four sets of color difference data after color comparison, including △ E, △ L, △ a, and △ b, to provide a reference scheme for color matching.
2. The instrument is portable. There are two power supply methods: battery and external power supply, which are convenient and practical.
3. Equipped with a USB expansion port, it can be connected to a computer for display. Convenient for saving data and printing reports (Luxes).
Technical Specifications:
| measurement accuracy | Within 0.2 △ E * ab |
| Display content | △ E*ab、CIE_Lab、 △ Lab、CIE_Lch |
| test scope | L：0～100 a：－128～127 b：－128～127 |
| measure time | About 3 seconds |
| Measurement time interval | 2 seconds |
| measure aperture | 8mm |
| Storage function | Automatically store a set of standard colors (without connecting to a PC) |
| Auto Shutdown | Standby for 5 minutes, automatic shutdown |
| measurement light source | Software simulation of C light source |
| Sensors | Calibrate silicon photodiode array |
| power supply | 9V battery/5V external power supply |
| Instrument size | 171*50*48.8mm |
| weight | 186g (excluding battery) |
| Standard Appendix | Instruction manual/soft cover/one 9V battery/5V external power supply/one USB/one CD |
Related analysis methods:
The magnitude of the total color difference of △ E
△ L+represents off white, △ L - represents off black
△ a+indicates reddish tint, △ a - indicates greenish tint
△ b+represents yellowish color, △ b - represents bluish color.
| scope | Color difference (tolerance) |
| 0 - 0.25△E | Very small or absent; Ideal Match |
| 0.25 - 0.5△E | Tiny; Acceptable Matching |
| 0.5 -1.0△E | Small to medium; Acceptable in some applications |
| 1.0 -2.0△E | Moderate; Acceptable in specific applications |
| 2.0 -4.0△E | There is a gap; Acceptable in specific applications |
| 4.0 △ E or above | Very large; Not acceptable in most applications |
CIE color space coordinate diagram and related calculation formulas:
Color difference formula:
△ Eab＝[ (△ L*)2+(△a*)2+(△b)2]1/2
△ L=L sample - L standard (brightness difference)
△ a=a sample - a standard (red/green difference)
△ b=b sample - b standard (yellow/basket difference)
Connecting to a computer for use:
1. Store measurement data in the computer and access historical data for comparative analysis at any time.
2. Display batch measurement curve charts and related data through software to monitor product color difference fluctuations in a timely manner.
3. Customize and edit charts and data, then print and output them.
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