CM-25cG Portable Color and Gloss Meter

CM-25cG Portable Color and Gloss Meter

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CM-25cG Portable Color and Gloss Meter
CM-25cG Portable Color and Gloss Meter
CM-25cG Portable Color and Gloss Meter

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CM-25cG Portable Color and Gloss Meter

The CM-25cG is a compact and lightweight portable spectrophotometer with 45°c:0° geometry and a true high performance 60°-gloss-sensor. The 45°c:0° geometry used is renowned for providing color values offering excellent correlation to visual perception. This is achieved by fully excluding surface effects of gloss and/or texture. The built-in gloss-sensor accurately measures surface gloss.

Being fully compatible to the previous CM-2500c model, the CM-25cG’s perfect circular optical system (defined as 45°c:0°) achieves high accuracy and repeatability, especially on textured or structured surfaces, regardless of measurement direction. Not only does it measure color, but also true 60°-gloss at the same time and, as a world premiere, not only for standard MAV aperture size (10mm) but also for small measurement areas with 3mm spot size.

The CM-25cG is lightweight and uses a large and easy-to-read color display to show and manage measurement data either numerically or graphically. For correct positioning on a sample, the CM-25cG is the first device offering a true optical sample viewer in a 45°:0° geometry instrument.

CM-25cG – Portable spectrophotometer

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  • Unique 45°c:0° geometry spectrophotometer with 60° gloss measurement and optical sample preview
  • Two measurement areas: MAV (8mm) and SAV (3mm) for color and MAV (10mm) and SAV (3mm) for gloss in one instrument
  • Xenon Flash illumination for best accuracy on dark colors
  • Measurement speed approx. 1s
  • 360-740 nm wavelength range, 10 nm resolution
  • Lightweight (~600g with battery), compact and rugged for on-site measurements
  • Connectable via USB and optional Bluetooth®
  • Large and easy-to-read high-resolution 2.7” color display
  • Group sorting of data by user-definable tags


Model CM-25cG
Color Gloss
Illumination/viewing system 45°c:0° method (45° circumferential illumination, 0° vertical viewing)
CIE No.15, ISO 7724/1, ASTM E179, DIN 5033-7, JIS Z 8722 compliant
60° ISO 2813, ISO 7668, ASTM D523, ASTM D2457, DIN 67530, JIS Z8741, JIS K5600 compliant optical system
Detector Dual 40-element silicon photodiode arrays Silicon photo diode
Spectral separation device Planar diffraction grating
Wavelength range 360 nm to 740 nm
Wavelength pitch 10 nm (approx. 10 nm FWHM)
Reflectance range 0 to 175%, resolution: 0.01% 0-200 GU; Output/display resolution:0.01 GU
Light source Pulsed Xenon Lamp White LED
Measurement time Approx. 1.0 second
Minimum interval between measurements Approx. 2.0 seconds
Battery performance Standalone: Approx. 3000 measurements (at 10s intervals at 23°C)
Bluetooth®: Approx. 1000 measurements (at 10s intervals at 23°C)
Measurement/illumination area MAV: Ø8.0 mm / 12 x 16 mm
SAV: Ø3.0 mm / 12 x 16 mm
MAV: Ø10 mm
SAV: Ø3.0 mm
Repeatability Standard deviation within ΔE*ab 0.04 (Measurement conditions: White calibration plate measured 30 times at 10-second intervals after white calibration was performed) 0 – 10 GU:
±0.1GU10 – 100 GU:
±0.2GU>100 GU:
Inter-Instrument Agreement Within ΔE*ab 0.15 (Average for 12 BCRA Series II color tiles compared to values measured with master body at 23°C) Gloss value (MAV):
0 – 10 GU:
10 – 100 GU:
(MAV. Compared to values measured with a master body under Konica Minolta standard conditions)
Interface USB 2.0 Standard, Bluetooth® Optional
CIE Observer 2° and 10° CIE standard colorimetric observer
CIE Illuminants A, C, D50, D65, F2, F6, F7, F8, F10, F11, F12, ID50, ID65, User illuminant
(simultaneous evaluation with two light sources possible)
Display data Spectral values/graph, colorimetric values/graph, colour difference values/graph, PASS/FAIL judgment, pseudo colour, colour assessment
Color space / Colorimetric data XYZ, Yxy, CIELAB, CIELCh, HunterLAB, ∆E*ab, ∆E94, ∆E00, CMC (I:c), ∆EHunter, MI, Munsell, WI (ASTM E313-73/96; CIE(WI/Tint)), YI (ASTM E313-73/96; ASTM D1925), ISO Brightness
Data memory Targets: 2500
Samples: 7500
Power source Rechargeable Lithium-Ion battery, USB bus power
Dimensions (W × H × L) [mm] 81 x 81 x 224
Weight [g] Approx. 600 (with battery)
Display languages English, French, German, Italian, Polish, Portuguese, Russian, Spanish, Turkish, Chinese (simplified), Japanese
Display 2.7-inch TFT color LCD
Operating temperature / humidity range 5 – 40°C, relative humidity 80% or less (at 35°C) with no condensation
Storage temperature / humidity range 0 – 45°C, relative humidity 80% or less (at 35°C) with no condensation
Standard accessories Calibration stage, Lithium-Ion battery, flat-type battery cover, wrist strap, USB cable, USB power supply
Optional Accessories Hard case, Battery charger and spare batteries, stapler-type target mask, Bluetooth® module, SpectraMagic™ DX software
* Specifications are subject to change without prior notice.

Included Accessories

Calibration Stage
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Flat-Type Battery Cover
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Lithium-Ion Battery Pack
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USB Cable
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USB Power Supply
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Wrist Strap
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