CM-25cG Portable Color and Gloss Meter
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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.
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Features
- 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
Specifications
| 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: ±0.2% |
| 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: ±0.2GU 10 – 100 GU: ±0.5GU (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. | ||
