HOTLINE: +86-021-64601150
Minolta Products

Spectrophotometer CM-3700A

2017-10-17      Click:41

Built for performance and reliability, the CM-3700A Spectrophotometer is a top-of-the-line bench-top measurement instrument designed to precisely evaluate the color and appearance of opaque, transparent, translucent, and fluorescent samples. This high precision, versatile spectrophotometer is used to evaluate, reproduce, and help control the color and appearance of samples in a more effective, streamlined process. Its advanced capabilities and unwavering performance enable users to formulate and match color quality standards more efficiently, maintain consistency in each batch of material, and help communicate color seamlessly internally and throughout the supply chain. This makes the CM-3700A ideal for color analysis, formulation, and quality control inspections within laboratory and manufacturing environments.

The CM-3700A Spectrophotometer is compatible with SpectraMagic NX software to record measurements and provide a more comprehensive color analysis, as well as Colibri software to formulate color recipes for various applications and share real-time measurement data.



  • Includes aperture sizes of 3x5mm, 8mm, and 25.4mm to accurately evaluate the color of a wide variety of samples small to large in size; automatically detects aperture size and communicates to color analysis software, SpectraMagic NX, for improved user convenience
  • Measures opaque, transparent, translucent, and fluorescent samples light to dark in color and low to high in saturation
  • Tight inter-instrument agreement of ΔE*ab 0.08, allowing color values and specifications to be communicated, shared, and coordinated seamlessly throughout the supply chain
  • High precision measurements to maintain consistent results internally and across the supply chain
  • Can switch between SCE and SCI measurement modes to accommodate the surface conditions of each sample
  • Hand assembled with quality parts, making it durable and reliable to keep customer operations running as smooth as possible
  • USB connection conveniently allows users to connect to a PC or laptop
  • Conforms to standards CIE, ISO, ASTM, DIN, and JIS measurement requirements
  • Integrates with SpectraMagic NX software for color quality control, as well as Colibri software for color formulation


Model CM-3700A
observation system
Reflectance di:8° , de:8° (diffuse illumination, 8° viewing angle)
SCI (specular component included) / SCE (specular component excluded) switchable
Conforms to CIE No.15, lSO 7724/1, ASTM E 1164, DIN 5033 Teil 7 and JIS Z 8722 condition c standard.
Transmittance di:0° , de:0° (diffuse illumination, 0° viewing angle)
Conforms to CIE No.15, ASTM E 1164, DIN 5033 Teil 7 and JIS Z 8722 condition g standard.
Detector Silicon photodiode array with flat holographic grating
Wavelength range 360nm to 740 nm
Wavelength pitch 10 nm
Half bandwidth Approximately 14 nm average
Photometric range 0 to 200%; Resolution: 0.001%
Light source Pulsed xenon arc lamp
Minimum measurement interval 3 seconds
measurement area
Reflectance Changeable between LAV, MAV, and SAV
SAV: 5 × 7 mm illumination/3 ×5 mm measurement
MAV: ø 11 mm illumination/ ø8 mm measurement
LAV: ø28 mm illumination/ ø25.4 mm measurement
Transmittance ø2m illumination/Approx. ø20 mm
Repeatability When white calibration plate is measured 30 times at 10-sec. intervals after white calibration has been performed:
Spectral reflectance: Standard deviation within 0.05%
Chromaticity: Standard deviation within ΔE*ab 0.005
When black tile (BCRA Series II; reflectance: 1%) is measured 30 times at 10-sec. intervals after white calibration has been performed:
Spectral reflectance: 
380 to 740 nm: Standard deviation within 0.02%
360 and 370 nm: Standard deviation within 0.04%
Chromaticity: Standard deviation within ΔE*ab 0.05
Inter-instrument agreement (LAV) Mean ΔE*ab 0.08 (typical) Average for 12 BCRA Series II color tiles
Max. ΔE*ab 0.3 (corresponds to ΔEcmc 0.2) for any of 12 BCRA Series II color tiles compared to values measured with Konica Minolta master body
UV adjustment Computer controlled; Continuously variable; 400 nm cutoff filter
Transmittance chamber Maximum sample thickness: Approx. 50 mm
Maximum sample length: Unlimited (transmittance chamber has no sides when transmittance chamber cover is open)
Sample holder (optional) for holding sheet samples or containers of liquid samples can be installed/removed.
Interface USB 1.1
Power AC 100V to 240V 50/60Hz (using included AC adapter)
Operating temperature/
humidity range
13 to 33°C, relative humidity 80% or less (at 33°C) with no condensation
Storage temperature/
humidity range
0 to 40°C, relative humidity 80% or less (at 35°C) with no condensation
Dimensions (W × H×D) 271 ×274 ×500 mm
Weight 18kg
Standard accessories White Calibration Plate; Target Mask (3 ×m); Target Mask ( ø8 mm); Target Mask ( ø25.4 mm); Zero Calibration Box; AC Adapter; USB Cable (3 m); Accessory Case; Dust Cover
Optional accessories Color Data Software SpectraMagic NX; Transmittance Specimen Holder; Glass Cells (2 mm, 10 mm, 20 mm); Plastic Cells (2 mm, 10 mm, 20 mm); Transmittance Zero Calibration Plate; Color Tiles; USB Cable (5m)


PRE : Spectrophotometer LCS-IV
NEXT : Spectrophotometer CM-3630