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| Product Name | QiWei WSB-2 whiteness Meter | QiWei WSB-2Y Whiteness Meter (Benchtop) |
| Product Price | $291.00 | $417.00 |
| Details | Details | |
| Model comparison | ||
| type | desktop | desktop |
| Whiteness | Blue light whiteness | Blue light whiteness Fluorescent whitening amount |
| Measuring range | 0~200 | 0~200 |
| Sexual repeability | ≤0.3 | ≤0.3 |
| Indication accuracy | Miscellaneous | 0.1 |
| Measurement aperture | f21 ~ 30mm | f21 ~ 30mm |
| Parameter comparison | ||
| Measurement Range | 0~199.9 | 0~199.9 |
| Whiteness formula | R457 blue light whiteness | R457 Blue light whiteness, fluorescent whiteness F |
| Illuminant | LED Illuminant | LED Illuminant |
| test condition | 45/0 | 45/0 |
| Display mode | LCD liquid crystal display | LCD liquid crystal display |
| Measurement aperture | Φ30mm | Φ30mm |
| resolution | 0.1 | 0.1 |
| Zero drift | ≤0.2/10min | ≤0.2/10min |
| Indication drift | ≤0.3/3min | ≤0.3/3min |
| Repeatability | ≤0.3 | ≤0.3 |
| Operating temperature | 5~35℃ | 5~35℃ |
| relative humidity | ≤85%RH | ≤85%RH |
| power supply | AC 220V/50Hz | |
| Encasement | carton | carton |
| Net weight | 6.5kg | 6.5kg |
| material | plastic | |
| principle | By measuring the intensity and Light spectrum characteristics of the reflected light on the surface of the object, the integrating sphere is used to collect the diffuse reflected light and convert it into an electrical signal, so as to calculate the whiteness value of the object. | |
| function | Measurement of the whiteness value of the surface of the object, by detecting the intensity and characteristics of the reflected light, evaluate the whiteness level of the material. | |
