CM-3700A Plus

Bench-top Spectrophotometer CM-3700A Plus

Flagship Benchtop Spectrophotometer with Camera Viewfinder & Environmental Sensors

The CM-3700A Plus is Konica Minolta’s top-tier benchtop spectrophotometer, designed for exceptional color measurement accuracy.

Built with a durable stainless steel optical system, it ensures year-round precision. Its advanced barium sulfate sphere coating provides stable diffuse illumination, delivering outstanding inter-instrument agreement of ΔE*ab 0.08 or less. Compared to its predecessor, the CM-3700A, the Plus model offers even greater precision for color management across multiple locations and suppliers.

With a built-in status panel, camera viewfinder, and new sensors to monitor environmental and sample conditions, the CM-3700A Plus sets the standard for unmatched color accuracy.

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Description

Flagship Benchtop Spectrophotometer with Camera Viewfinder & Environmental Sensors

The CM-3700A Plus is Konica Minolta’s top-tier benchtop spectrophotometer, designed for exceptional color measurement accuracy.

Built with a durable stainless steel optical system, it ensures year-round precision. Its advanced barium sulfate sphere coating provides stable diffuse illumination, delivering outstanding inter-instrument agreement of ΔE*ab 0.08 or less. Compared to its predecessor, the CM-3700A, the Plus model offers even greater precision for color management across multiple locations and suppliers.

With a built-in status panel, camera viewfinder, and new sensors to monitor environmental and sample conditions, the CM-3700A Plus sets the standard for unmatched color accuracy.

Features

Precision Engineering & User-Friendly Design

  • Built to Last: Hand-assembled in Japan, the CM-3700A Plus features a stainless steel optical system for long-term stability, durability, and minimal thermal expansion.
  • On-Device Controls: A built-in display panel shows the current configuration, ensuring correct measurement conditions. It also includes a power and measurement button for easy operation.
  • Integrated Accessory Storage: Convenient storage for the calibration tile, zero calibration box, and target masks keeps essentials organized and your workspace clear.

Enhanced Functionality for Accurate Measurements

  • Improved Transmittance Chamber: The redesigned chamber, now using the CM-36dG series mechanism, allows for easy and repeatable liquid sample measurements.
  • Environmental Monitoring: A built-in sensor records sample temperature, environmental temperature, and humidity, helping to detect color shifts caused by changing conditions.
  • Simultaneous SCI & SCE Measurement: Measure both specular component included (SCI) and specular component excluded (SCE) at the same time, significantly improving efficiency.
  • Seamless Upgrade from CM-3700A: The CM-3700A Plus delivers excellent data correlation with its predecessor, allowing users to retain existing data when upgrading.

Advanced Features for Precision & Efficiency

  • Sample Viewer Camera: Accurately measure even small or patterned samples with the integrated camera. Sample images can be saved alongside measurement data in SpectraMagic™ NX2.
  • Wavelength Analysis & Adjustment: The system performs routine self-checks and adjustments with each white calibration, protecting measurement accuracy. (Requires a valid service and maintenance agreement.)

The CM-3700A Plus is designed for professionals who demand accuracy, efficiency, and reliability in every measurement.

Specifications

MODEL CM-3700A Plus
ILLUMINATION/VIEWING SYSTEM Reflectance: di:8°, de:8° (diffuse illumination/8° viewing angle); SCI (specular component included)/SCE (specular component excluded) switchable & simultaneous. Conforms to CIE No.15(2004), ISO 7724/1, ASTM E 1164, DIN 5033 Teil 7, and JIS Z 8722 condition c standards. Transmittance: di:0°, de:0° (diffuse illumination/0° viewing angle). Conforms to CIE No.15(2004), ASTM E 1164, DIN 5033 Teil 7, and JIS Z 8722 condition g standards.
INTEGRATING SPHERE SIZE Ø152 mm (6 inches)
DETECTOR 38-element silicon photodiode array
SPECTRAL SEPARATION DEVICE Diffraction grating
WAVELENGTH RANGE 360 to 740 nm
WAVELENGTH PITCH 10 nm
HALF BANDWIDTH Approximately 14 nm average
MEASURING RANGE 0 to 200%; Resolution: 0.001%
LIGHT SOURCE Pulsed xenon arc lamp
MEASUREMENT/ILLUMINATION AREAS Reflectance: Changeable between SAV, MAV, LMAV, and LAV. SAV: 3 × 5 mm measurement / 5 × 7 mm illumination; MAV: Ø8 mm measurement / Ø11 mm illumination; LMAV: Ø16 mm measurement / Ø20 mm illumination; LAV: Ø25.4 mm measurement / Ø28 mm illumination. Transmittance:Approximately Ø20 mm / Ø25 mm.
REPEATABILITY White: Colorimetric values: Standard deviation within ΔEab 0.005; Spectral reflectance: Standard deviation within 0.05% (measured 30 times at 10-second intervals after white calibration). Black: Colorimetric values: Standard deviation within ΔEab 0.02; Spectral reflectance: Standard deviation within 0.02% (measured 30 times at 10-second intervals after white calibration).
INTER-INSTRUMENT AGREEMENT Within ΔE*ab 0.08 (based on average for 12 BCRA Series II color tiles; LAV/SCI. Compared to values measured with a master body under Konica Minolta standard measurement conditions).
UV ADJUSTMENT Computer-controlled; continuously variable, 0.0% to 100.0% (1000 steps). UV setting: UV cutoff filter at 400 nm.
SAMPLE TEMPERATURE MEASUREMENT Accuracy within operating temperature/humidity range: SAV: ±1.2°C; LMAV, MAV: ±0.8°C; LAV: ±0.5°C.
MEASUREMENT TIME SCI or SCE: Approximately 2 seconds; SCI or SCE with sample temperature measurement: Approximately 4.5 seconds; SCI+SCE:Approximately 5 seconds; SCI+SCE with sample temperature measurement: Approximately 5 seconds; Transmittance: Approximately 2 seconds.
MINIMUM INTERVAL BETWEEN MEASUREMENTS SCI or SCE: Approximately 3 seconds; SCI or SCE with sample temperature measurement: Approximately 5 seconds; SCI+SCE:Approximately 6 seconds; SCI+SCE with sample temperature measurement: Approximately 6 seconds; Transmittance: Approximately 3 seconds.
TRANSMITTANCE CHAMBER Maximum sample thickness: Approximately 50 mm; Maximum sample length: Unlimited (no sides when transmittance chamber cover is open). Sample holder (optional) for holding sheet samples or containers of liquid samples can be installed/removed.
CAMERA VIEWFINDER FUNCTION Uses internal camera. Image viewable/copiable using optional software such as SpectraMagic NX2.
INTERNAL PERFORMANCE CHECK Wavelength Analysis & Adjustment (WAA) Technology.
AMBIENT TEMPERATURE SENSOR Yes
INTERFACE USB 2.0
POWER Dedicated AC adapter
DIMENSIONS (H × W × D) Approximately 307 × 271 × 600 mm
WEIGHT Approximately 20.0 kg
OPERATING TEMPERATURE/HUMIDITY RANGE Temperature: 13 to 33°C; Relative humidity: 80% or less (at 33°C) with no condensation
STORAGE TEMPERATURE/HUMIDITY RANGE Temperature: 0 to 40°C; Relative humidity: 80% or less (at 35°C) with no condensation
STANDARD ACCESSORIES White Calibration Plate; Target Masks (SAV, MAV, LMAV, LAV); Zero Calibration Box; USB Cable (3 m); AC Adapter
OPTIONAL ACCESSORIES Color Data Software SpectraMagic™ NX2; Transmittance Specimen Holder; Cells (Glass: 2 mm, 10 mm, 20 mm); Plastic Cells (2 mm, 10 mm, 20 mm); Transmittance Zero Calibration Plate; Color Plates; Green tile; Dust Cover.

Note: The Wavelength Analysis & Adjustment (WAA) function enables wavelength diagnosis and correction of the instrument. This function is available free of charge for the first year after purchase and can be continued after the second year by having the instrument serviced and calibrated.

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