Model :WM Series
The AELAB WM-106 Whiteness Meter is a portable analytical instrument designed to directly measure blue light whiteness R457 of powders and flat solid surfaces. Utilizing a 457 nm LED light source and photoelectric detection principle, the WM-106 ensures stable, repeatable, and standards-compliant whiteness evaluation for laboratory and industrial quality control applications.
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The AELAB WM-106 Whiteness Meter performs direct measurement of blue light whiteness for objects and powders with flat surfaces. The instrument integrates an LED light source, optical system, detection system, data processing unit, and digital display to deliver quantitative whiteness values using the R457 calculation method.
Designed in accordance with JJG 512-2002 National Metrological Whiteness Meter Verification Regulation, the AELAB WM-106 supports standardized and reproducible whiteness testing across industrial and laboratory environments.
The AELAB WM-106 Whiteness Meter features a compact handheld main unit paired with an external optical probe. The optical path adopts a corrected filter system and a 45°/0° illumination geometry, enabling stable diffuse reflectance measurement. High-quality imported electronic components ensure reliable long-term operation.
The AELAB WM-106 Whiteness Meter operates based on the photoelectric effect. A long-life LED light source emitting at 457 nm illuminates the sample surface. The diffuse reflected radiant brightness energy is received by the optical cell, amplified through an auto-zeroing operational amplifier, calibrated via an energy correction circuit, and converted into a direct digital whiteness value.
| Model | Measuring Aperture | Power Supply | Weight |
|---|---|---|---|
| WM-106 | ≤15 mm | 4 × 1.5 V AAA Battery | 200 g (Excluding Batteries) |
| WM-206 | 18 × 11 mm Rectangle | Lithium Battery | 305 g (Including Batteries) |
The AELAB WM-106 Whiteness Meter is widely used for whiteness evaluation in textile printing and dyeing, paint and coating inspection, chemical materials, paperboard, plastics, white cement, ceramics, enamel, talc powder, starch, flour, salt, detergent, cosmetics, and related substances.
The AELAB WM-106 Whiteness Meter conforms to JJG 512-2002 and supports multiple national and international standards including GB3978, GB3979, GB7973, GB7974, ISO2470, ISO2471, GB8904.2, QB1840, GB2913, GB13025.2, GB1543, GB10339, GB5950, GB12911, and GB2409. Each unit undergoes strict inspection and verification prior to delivery.
| Range | 0%~120% | |
| Resolution | 0.1% | |
| Illumination Condition | 45°/0° | |
| Illuminant | LED 457nm | |
| Whiteness Formula | Blue Light Whiteness WB=R457 | |
| Measuring Aperture | <<15 mm | |
| Zero Drift | <<0.1% | |
| Stability of Display | <<0.5% | |
| Repeatability of Measurement | <<0.1% | |
| Operating Gondition | Temperature | 0ºC~40ºC |
| Humidity | <85%RH | |
| Power Supply | 4x1.5V AAA(UM-4)Battery | |
| Size | Main Unit | 156mmx67mmx28 mm |
| Probe | Φ44mmx55 mm | |
| Weight | 200g(Not Including Batteries) | |
Accessories
| Model | WM-106 | WM-206 |
| Standard Accessories | Main Unit | |
| External Probe | —— | |
| Standard White Board | ||
| Optical Cleaning Cotton Cloth | ||
| Carrying Case(B04) | Carrying Case | |
| Operation Manual | ||
| Optional Accessories | Constant Pressure Powder Forming Apparatus | |
| RS-232C Data Cable with Software | ||
| Bluetooth Data Adapter with Software | ||
