Weifu WF series color difference meter adopts horizontal structure color difference meter, large LCD screen, display interface supports displaying color deviation, and can also provide total color difference judgment results, which can be applied to color quality control, color difference control, color difference in various industries Analysis, sample inspection, production line inspection, also suitable for auxiliary color matching of injection molding, ink, paint, spraying, etc.
In terms of appearance, WF series Colorimeters have basically the same appearance without much difference. In terms of performance measurement parameters, the main reason is that the repeatability of WF28 is less than 0.07, and the accuracy of WF30 is less than 0.05 . , WF30 Colorimeter has three caliber measurements of 4mm/8mm/16mm, and the application range is more extensive.
The following is a comparison of the parameters of the two models:
| model | WF28 | WF30 |
| display mode | CIELAB, CIELCH | CIELAB, CIELCH |
| Color difference formula | △E*ab | △E*ab |
| lighting method | CIE suggested method: 8/d | CIE suggested method: 8/d |
| light source | LED blue light excitation | LED blue light excitation |
| sensor | photodiode array | photodiode array |
| Measuring caliber | φ8mm | φ4mm/φ8mm/φ16mm optional |
| Measurement conditions | Observer: CIE 10° standard observer Light source: D65 Lighting method: SCI SCE | Observer: CIE 10° standard observer Light source: D50 D65 F11 (TL84) Containing light mode: SCI SCE |
| Measurement range | L:0 to 100 | L:0 to 100 |
| Repeatability | △E<0.07 (measure the whiteboard 30 times to get the average deviation) | △E<0.05 (measure the whiteboard 30 times to get the average deviation) |
| Inter-instrument difference | △E<0.2 | △E<0.2 |
| measure time | 0.5 seconds | 0.5 seconds |
| data storage capacity | 100 pieces of standard sample data, 100 pieces of sample data under each standard sample | 100 pieces of standard sample data, 200 pieces of sample data under each standard sample |
| language model | Simplified Chinese | Simplified Chinese, English |
| battery power | Lithium battery can be measured 5000 times after fully charged | Lithium battery can be measured 5000 times after fully charged |
| lamp life | More than 1.6 million measurements in 5 years | More than 1.6 million measurements in 5 years |
| display screen | TFT true color display 2.8inch@(16:9) Resolution: 400x240 | TFT true color display 2.8inch@(16:9) Resolution: 400x240 |
| External communication interface | USB2.0 (USB-B type) RS-232 (115200bps) | USB2.0 (USB-B type) RS-232 (115200bps) |
| Operating temperature range | 0°C-40°C (32°F-104°F) | 0°C-40°C (32°F-104°F) |
| storage temperature range | -20°C-50°C (-4°F-122°F) | -20°C-50°C (-4°F-122°F) |
| humidity range | Relative humidity below 85% non-condensing | Relative humidity below 85% non-condensing |
| Instrument weight | 700g | 700g |
| Instrument size | 199x68x90mm | 199x68x90mm |
| Package size | 400x240x340mm | 400x240x340mm |
| Standard accessories | 3000mAH lithium battery, power adapter, manual, warranty card | 3000mAH lithium battery, power adapter, USB data cable, CD (color analysis system software), manual, warranty card |
| optional accessories | Powder Test Kits, Liquid Test Kits, Micro Printers | Powder Test Kits, Liquid Test Kits, Micro Printers |
