second-handSpectrophotometer CM-3700A
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CM-3700A Spectrophotometer
The CM-3700A spectrophotometer provides the highest level in accuracy and reliability available in a bench top unit. It features aperture masks, a large sphere, and a complete optical system, going above and beyond international standard requirements. Emitting a high power xenon flash when a measurement takes place, this instrument ensures the most accurate measurement is taken. Users are able to switch the size of the measurement area by choosing from 25.4mm, 8mm, and 3x5mm depending on the needs of their application. With a sample holder that also features a long arm to enable measuring the center of an A4-sized sample, the CM-3700A spectrophotometer also has a damper to provide a “slow-close” effect that prevents the sample holder from slamming shut which could possibly damage the measurement sample.
With the ability to switch between SCI and SCE, the CM-3700A spectrophotometer makes measuring reflective colors easy. It’s also easy to determine florescent colors thanks to the instrument’s UV cut filters which allow 1,000-step adjustment of UV light, providing ideal measurement of pulp, paper, and any other materials containing florescent materials. Also, users can effectively measure transparent colors with diffused lighting. These unique features allow a wide range of applications to be measured including textiles, plastics, kiln-fired materials, dyed items, food, liquids, and others. The CM-3700A spectrophotometer is easily controllable by a PC via a USB cord, which provides an easier connection and faster communication. What’s more, data control and editing is easy with Windows compatibility.
The CM-3700A’s compatibility with SpectraMagic NX software offers another easy-to-use option, and provides multiple views of data results which can then be edited. By associating two or more secondary targets with target data of the primary target, allows for sophisticated QC applications, such as checking for color difference.
With the software’s easy drag-and-drop ability, information can be easily interpreted after printing. Preconfigured templates and a variety of graphs are available to display information, and information is available at a glance in the status window. Older data is compatible simply by transferring data compiled with older software to the newest updated software. Information can also be easily exported into Excel if that’s what you need to show data. Additional information is available with the Color Tutorial and the Navigation Function with the included software.
| Illumination/ 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 | |
| Illumination/ 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 | |
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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 Japan 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) | |
