Separate Type WM-106 Integrated WM-206 Whiteness Meter Detector Blue Light Measurement
Applications
The Whiteness Meter is designed for direct measurement of whiteness values on flat surfaces of objects or powders. It is widely used across multiple industries including textile printing and dyeing, paints, chemical building materials, paper board, plastic products, white cement, ceramics, enamel, talc powder, starch, flour, salt, detergents, cosmetics, and other materials.
Measurement Principle
This instrument consists of four main systems: Light Source, Optical System, Detection System, and Data Processing & Display System. It utilizes the blue light whiteness R457 calculation formula with a long-life LED light source at 457nm, compliant with JJG 512-2002 National Metrological Whiteness Meter Verification Regulation. The measurement operates on the photoelectric effect principle, where diffuse reflectance radiant brightness energy from the sample surface is received by the optical cell, amplified through high-precision auto-zeroing operational amplifiers, calibrated through energy calibration circuits, and displayed as direct whiteness values.
Key Features
- Optimized optical path design with correction filter system for quantitative whiteness reflection
- High-quality imported components for reliable performance
- No preheating required - ready for measurement after simple calibration
- Memory capacity for 254 measurement data groups
- Compliant with JJG 512-2002 and multiple international standards including GB3978, GB3979, GB7973, GB7974, ISO2470, and others
- RS-232 data output for PC connectivity
- Optional Bluetooth data output available
Technical Specifications
| Parameter |
WM-106 |
WM-206 |
| Measurement Range |
0~120 |
| Resolution |
0.1 |
| Illumination Condition |
45/0 |
| Illuminant |
LED 457nm |
| Whiteness Formula |
Blue Light Whiteness WB=R457 |
| Measuring Aperture |
≤15mm |
18x11 mm Rectangle |
| Zero Drift |
≤0.1 |
| Display Stability |
≤0.5 |
| Measurement Repeatability |
≤1 |
| Operating Conditions |
0~40°C, <85%RH |
| Power Supply |
4x1.5V AAA (UM-4) Battery |
Lithium Battery |
| Dimensions |
Main Unit: 156x67x28 mm
Probe: Ф44x55 mm |
Main Unit: 140x45x75 mm
Probe: NO |
| Weight |
200 g (Not Including Batteries) |
305 g (Including Batteries) |
Standard Accessories
Main Unit (1pc), External Probe (1pc - for WM-106), Standard White Board (1pc), Optical Cleaning Cotton Cloth (1pc), Carrying Case (1pc), Operation Manual (1pc)
Optional Accessories
Constant Pressure Powder Forming Apparatus, RS-232C Data Cable with Software, Bluetooth Data Adapter with Software
