CM-3630 Spectrophotometer (Discontinued)

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The CM-3630 bench-top spectrophotometer ensures perfect compliance to optical standards ISO 2469 and ISO 2470 used in the Pulp and Paper Industry. Together with the designated software values for color, brightness, whiteness and yellowness indices are calculated and displayed in full accordance with several international and national standards such as ISO, SCAN, DIN, TAPPI, CPPA and AFNOR.

Numerical UV-Control makes calibration and adjustments to whiteness and tint a fast and easy procedure. In fact, in just a few seconds your instrument is perfectly calibrated, much faster and with conventional instruments. Since everything’s done numerically, and with the significant reduction in moving parts, it is almost maintenance free

Using the patented Numerical UV control (NUVC) it is a highly accurate and reliable bench top spectrophotometer in the production environment. Controlled via the optional software SpectraMagic NX, the CM-3630 can give values for color, tint, whiteness, yellowness, brightness, fluorescence, and opacity. Furthermore, the Numerical UV-Control allows easy adjustment of the instrument’s parameters to other instruments and thus, ensuring closer data correlation. Learn more about our Bench-Top Spectrophotometers here.


  • Accurately measures opacity, brightness, fluorescence, color, whiteness, and tint
  • d/0 optical system is compliant with all relevant standards, such as ISO 2469, ISO 2470
  • Patented Numerical UV Control makes calibration and adjustments to whiteness and tint simple and fast
  • Single measurement Φ34mm illumination area /Φ30mm measurement area
  • Measures at 10nm intervals over a full range of wavelengths from 360nm to 740nm
  • Controlled with a PC using SpectraMagic NX software
  • Built with few moving parts, resulting in reduced maintenance and repair costs
  • Vertical design that is compact and lightweight


Model CM-3630
Illumination/viewing system Reflectance: d/0° (diffused illumination, 0° 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
Half bandwidth Approx. 10nm
Reflectance range 0 to 200%; resolution: 0.01%
Light source Pulsed xenon lamps (x 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 Φ 30 mm / Φ 34 mm (Fixed)
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
Control method Directly connected to a computer
Interface RS-232C format
Output data Count, conditions, status
Other Automatic delimiter code detection (during serial data communication)
Power 100-240VAC, 50-60Hz 25W AC (with a dedicated AC adapter)
Size (W x H x D)/weight 300 x 585 x 315mm / 15.5Kg
Operation temperature/humidity range 13 – 33°C, less than 80% RH (at 33°C with no condensation)
Storage temperature/humidity range 0 – 40°C, less than 80% RH (at 33°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
Optional accessories Color Data Software SpectraMagic NX CM-S100w, Opacity jig CM-A134, RS-232C cable IF-A13

Included Accessories

AC A311 AC Adapter (120V)
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CM-A108 Unit Driver
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CM-A117 Accessory Case
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CM-A118 Dust Cover
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CM-A119 Zero Calibration Plate
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CM-A133 White Cal Plate w/ Disc
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IF-A12 RS-232C Cable (IBM PC/AT) 2M
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Suggested Accessories

CM-A134 Opacity Jig
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IF-A13 RS-232C Cable (IBM PC/AT) 5M
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IF-A14 RS-232C Cable (IBM PS2) 2M
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IF-A15 RS-232C Cable (IBM PS2) 5M
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