Konica Minolta



Bench-top Spectrophotometer CM-3700A

Konica Minolta's top of the range spectrophotometer for reflectance and transmittance color measurement. The best benchtop spectro for customers requiring absolute accuracy of liquid or solid samples. Ideally suited to applications like color matching or for specification of color to a global supply chain. The CM-3700A can also measure haze and has an adjustable cut-off uv filter for samples with OBAs.


Principal Specifications CM-3700A

Model Spectrophotometer CM-3700A
Illuminating/viewing system d:8° (diffused illumination; 8° viewing angle); switchable: di:8° SCI (specular component included) or de:8° SCE (specular component excluded; meets ISO and DIN standards for d:8° geometry; also meets CIE and ASTM standards for d:0° geometry. Transmittance: d:0° (diffuse illumination/0° viewing angle)
Detector Silicon photodiode array with flat holographic grating
Wavelength range 360 nm to 740 nm
Wavelength pitch 10 nm
Half bandwidth Approximately 14 nm average
Measurement range 0 to 175 % (Reflectance or transmittance); Output/display resolution: 0.01%
Photometric range Pulsed xenon arc lamp
Measurement time 0.6 to 0.8 sec. (to start of data output)
Illumination/measurement areas Reflectance: Changeable between LAV, MAV, and SAV
LAV: Ø 28 mm illumination / Ø 25.4 mm measurement
MAV: Ø 11 mm illumination / Ø 8 mm measurement
SAV: 5 × 7 mm illumination / 3 × 5 mm measurement
Transmittance: Approx. Ø 20 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 master body
Temperature drift Spectral reflectance: Within ±0.10%/°C
Color difference: Within ΔE*ab 0.05/°C
UV adjustment Computer controlled; continuously variable
Specimen conditions for transmittance measurements Sheet, plate, or liquid form up to a maximum thickness of approximately 50 mm and unlimited sample length
Interfaces USB 1.1
Power AC 100 to 240V 50/60Hz 25VA (using included AC adapter)
Operating temperature/humidity range 13 - 33°C, relative humidity 80% or less (at 33°C) with no condensation
Storage temperature/humidity range 0 - 40°C, relative humidity 80% or less (at 35°C) with no condensation
Dimensions (W × H × D) 271 × 274 × 500 mm (10-11/16 x 10-3/4 x 19-11/16 in.)
Weight18 kg (39.7 lb.)
Standard accessories White Calibration Plate; Target Mask (3 × 5 mm); Target Mask (Ø 8 mm); Target Mask (Ø 25.4 mm); Zero Calibration Box; AC Adapter; USB Cable (3 m); Accessory Case; Dust Cover
Optional accessories ΔE*ab (CIE 1976), ΔE*94 (CIE 1994), ΔE00 (CIE 2000), ΔE (Hunter), CMC (l: c)

Specifications are subject to change without prior notice.