The Whiteness Meter is mainly suitable for the whiteness measurement of non-color flat objects or powders, and can accurately obtain the whiteness value consistent with the visual sensitivity. It is mainly used in the detection of ceramics, pond porcelain, starch, salt, white cement, china clay, talcum powder and other objects. This issue mainly compares the parameters of several popular models of Qiwei portable Whiteness Meter, and customers can choose the model according to the actual measurement range. For more Whiteness Meter selection, please log in to check the instrument.
| Compare category | WSB-1 | WSB-1Y | WM-106 |
| product picture |  |  |  |
| brand | Qi Wei | Qi Wei | Qi Wei |
| place of origin | CHINA | CHINA | CHINA |
| Model comparison | |||
| type | Handheld | Handheld | Handheld |
| Indication accuracy | 0.1 | 0.1 | 0.1 |
| Measuring aperture | φ11~20mm | φ11~20mm | φ11~20mm |
| Specification comparison | |||
| Measuring range | 0-199.9 | 0-199.9 | 0~120 |
| resolution | 0.1 | 0.1 | 0.1 |
| Accuracy | |||
| zero drift | ≤0.2/10min | ≤0.2/10min | ≤0.1 |
| Indication drift | ≤0.3/3min | ≤0.3/3min | ≤0.5 |
| Indication error | |||
| repeatability error | ≤0.3 | ≤0.3 | ≤0.1 |
| specular error | |||
| Integrator diameter | |||
| Measuring aperture | Φ15 | Φ15 | ≤15mm |
| Sample requirements | |||
| Instrument size | 156x67x28mm | ||
| net weight | 1500g | 1500g | 200g (without battery) |
| power supply | AC and DC | AC and DC | 4 AAA batteries (optional AC power supply) |
| whiteness formula | Blu-ray whiteness WB=R457 | Blue light whiteness WB=R457, fluorescent whitening F | Blue light whiteness WB=R457 |
| light source | LED light source | LED light source | LED 457 nm light source |
| Illumination conditions | 45/0 | 45/0 | 45/0 |
| use environment | Ambient temperature: ＋5℃～＋35℃; Relative humidity: ≤85%RH | Ambient temperature: ＋5℃～＋35℃; Relative humidity: ≤85%RH | Temperature: 0~40℃; Humidity: <85 %RH |
| Illumination conditions | 45/0 | 45/0 | |
