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    Product Name QiWei WSB-2 whiteness Meter JingKeLian WSB-2Y Digital whiteness Meter
    Product Price $291.00 $432.00
    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
    Whiteness formula R457 blue light whiteness Blue light whiteness WB = R457, fluorescent whiteness F
    Illuminant LED Illuminant LED Illuminant
    test condition 45/0 Comply with GB/T3978 regulations 45/0
    Display mode 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
    Operating temperature 5~35℃
    relative humidity ≤85%RH
    power supply AC 220V/50Hz
    Encasement carton carton
    Net weight 6.5kg 6.5 kg
    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.