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CM-3630 Spectrophotometer
The CM-3630 Spectrophotometer is a highly advanced bench-top unit designed specifically for the paper and pulp industries. This is because of its ability to evaluate opacity, brightness, fluorescence, color, whiteness, and tint, measuring at 10nm over a full range of wavelengths (360nm – 740nm). Using d/0 geometry, the CM-3630 ensures adherence to ISO 2469 and 2470 standards, as well as JIS P8148, DIN 53145-1, and DIN 53142-2 standards to meet the needs of the user.
One of the most notable features of the CM-3630 is its Numerical UV Control. This feature makes calibration and adjustments to whiteness and tint a cinch because everything is done digitally. As opposed to the traditional filter method, the UV calibration process on the CM-3630 is now faster, more precise, and reliable.
In addition, the CM-3630 Spectrophotometer makes accurate measurements of optical brightening agents easy. There are several methods to adjust UV intensity in the instrument, allowing users to switch the light source between full power and soft flash mode. This capability prevents the triplet affect exhibited by some special optical brightening agents.
The CM-3630 Spectrophotometer is compatible with SpectraMagic NX, an easy-to-use and sophisticated software ideal for the quality control process. This software allows users to set a secondary and tertiary illuminant for a target, in addition to the primary target, for identifying color differences.
- Highly versatile – Accurately measures opacity, brightness, fluorescence, color, whiteness, and tint
- d/0 optical system – Compliant with all relevant standards, such as ISO 2469, ISO 2470, and other national and international standards
- Patented Numerical UV Control – Makes calibration and adjustments to whiteness and tint simple and fast
- Single measurement diameter – ø34mm illumination area/ø30mm measurement area
- Interval measurements – Measures at 10nm intervals over a full range of wavelengths from 360nm to 740nm
- Controlled by PC – Can be controlled with a PC using SpectraMagic NX software
- Reduced maintenance – Built with few moving parts, resulting in reduced maintenance and repair costs
- Vertical design – Compact and lightweight
| Illumination/viewing system | Reflectance: d:0° (diffused illumination, 0-degree viewing) Conforms to ISO 2469, JIS P8148, DIN 53145-1 and DIN 53145-2 standards. |
|---|---|
| Light-receiving element | Silicon photodiode array (dual 40 elements) |
| Spectral separation device | Diffraction grating |
| Wavelength range | 360 nm to 740 nm |
| Wavelength pitch | 10 nm |
| Reflectance range | 0 to 200%; resolution: 0.01% |
| Light source | Pulsed xenon lamps (× 3) |
| Measurement time | Approx. 1.5 seconds (for measurements of fluorescent colors, at 9600 bps) |
| Minimum interval between measurements | Approx. 4 seconds; when reflectance measured, approx. 5 seconds; when fluorescent color |
| Measurement/illumination area | Ø 30 mm / Ø 34 mm |
| Inter instrument agreement | Mean ΔE*ab 0.2 based on 12 BCRA Series II color tiles compared to values measured with master body |
| Repeatability | Spectral reflectance: Standard deviation within 0.1% Colorimetric values: Standard deviation within ΔE*ab 0.02 (condition; white calibration plate measured 30 times at 10-second intervals) |
| Temperature drift |
Spectral reflectance: Within +/- 0.10%/°C Color difference: Within ΔE*ab 0.05/°C |
| UV adjustment | Instantaneous numerical adjustment |
| UV cut filter | 400 nm cutoff and 420 nm cutoff |
| Control method | Directly connected to a computer |
| Interface | RS-232C format |
| Power | 100-240VAC, 50-60Hz 25W AC (with a dedicated AC adapter) |
| Dimensions (W × H × D) | 300 × 585 × 315 mm |
| Weight | 15.5 kg |
| Operating temperature/humidity range | 13 - 33°C, less than 80% relative humidity at 31°C with no condensation |
| Standard accessories | White calibration plate CM-A133, Zero calibration box CM-A119, AC adapter AC-A12, RS-232C cable IF-A12, Accessory Case CM-A117, Dust Cover CM-A118, Unit Driver CM-A108 |
Included Accessories
Suggested Accessories
Owner's Manual: Download PDF (467KB)
Case Study: Clemson University: Understanding and Controlling Color Download PDF (2MB)
