Description
Overview
GAOTek Laboratory paper Brightness Meter is widely applied in paper and cardboard, pulp, cotton and fabric, plastic, ceramic and porcelain enamel, amylum, construction material, chemical industry, salt making and other testing department that need to test whiteness.
Features
- d/o lighting observation geometry with 5.91 in (φ150 mm) diffuse spherical diameter and light absorber
- Spectral power distribution with peak wavelength at 457 nm and full width at half
- RY optical system complying with GB3979-83: object color measurement methods
- Multiple measurements with average result capability
- Power protection and data retention even during long-term power loss
- LCD display with user-friendly menu-style interface
- Measures and displays whiteness, fluorescence (whitening) brightness, and opacity
- Thermal micro printer for noiseless data printing
Technical Specifications
| zero drift | ≤ 0.1 |
| Indication drift | ≤ 0.1 |
| Indication error | ≤ 0.5 |
| Repeatability error | ≤ 0.1 |
| Specular reflection error | ≤ 0.1 |
| Sample size | Test surface ≥ φ 1.18 in (30 mm), thickness ≤ 1.58 in (40.13 mm) |
| Power | AC 220 V ± 10%, 50 HZ, 0.4 A |
| Work environment | Temperature 32 ℉ to 104 ℉ (0 ℃ to 40 ℃), relative humidity ≤85% |
| Dimension | 14.76 in x 10.39 in x 15.74 in (375 mm x 264 mm x 400 mm) |
| Weight | 39.68 lb. (18000 g) |