CM-512m3A Spectrophotometer (Discontinued)

Click to Enlarge Thumbnails

The Konica Minolta CM-512m3A is a multi-angle spectrophotometer that was created for use with metallic paints. The device has 0° viewing and illumination angles at 25°, 45°, and 75° that work with an exclusive geometry.

The device’s unique geometry offers an orientation error free symmetry that is often found lacking in other multi-angle devices. This device’s illumination provides impressively accurate results on both traditional and curved surfaces making formerly difficult samples such as door handles and vehicle mirror bodies easily measurable. The lack of moving parts makes the handheld CM-512m3A is very hearty and rugged.

Using the CM-512m3A is easy, even for those operating it for the first time. In fact it is among the simplest and most straightforward spectrophotometers on the market. With a single function, this versatile instrument’s multi-angle design takes measurements from 25°, 45° and 75° simultaneously.

While it’s easy to use, this spectrophotometer was built with advanced technologies that provide users with a number of versatile functions while maintaining the high levels of accuracy Konica Minolta is known for.

For example, In order to eliminate workpiece orientation effects, we’ve designed the CM-512m3A to bring illumination to the measuring area from 18 radial directions. The device is portable and shows precise color measurement data on an easy-to-read display. This makes it the ideal instrument for use on production lines where no computer is handy in which to feed data.

Users can perform both manual average and automatic average measurements with this spectrophotometer. Quality control functions are simple – determining if a measured color is inside a set range is accomplished with a quick glance at the display. The instrument stores 440 target and measurement data items.

You can learn more about the CM-512m3A spectrophotometer’s Features, Specifications and Accessories by clicking the tabs above. Through the Support tab, you can download a catalog and an owner’s manual and read a product case study from Clemson University.


  • Multi-angle measurements can be taken at 25°, 45°, and 75° angles simultaneously
  • Circumferential illumination at eighteen points for each angle, minimizing the difference between measurements taken at the same place on the sample even when instrument is rotated
  • Large, high resolution LCD screen displays measurements, graphs, and pass/fail results for easy interpretation.
  • Compact body for easy positioning, even on curved surfaces


Model CM-512m3A
Measurement Geometry 3 angle circumferential illumination / 1 angle perpendicular viewing: 25° c:0°, 45° c:0°, 75° c:0°
Detector Silicon photodiode array with continuous interference filter
Wavelength Range 400 to 700 nm
Wavelength Pitch 20 nm
Reflectance Range 25° :0% to 300%, 45° and 75° :0% to 200% (Resolution: 0.01%)
Light Source 3 pulsed xenon lamps
Minimum Measurement Interval 3 seconds (when measuring a white calibration plate at 23°C)
Battery Life Approx. 400 measurements at 10 second intervals (when a dark color is measured with alkaline batteries at 23° C)
Measurement/Illumination Area 12 mm / 20 mm
Repeatability Spectral reflectance: Within 0.3% (standard deviation)
Chromaticity value: Within ΔE*ab 0.05 (standard deviation)
(When a white calibration plate is measured 30 times at 10 second intervals after white calibration); When AC adapter is used
Interface RS-232C; Terminal: D-sub 9-pin (female)
Display Dot-matrix reflective LCD with 26 characters x 7 lines (240 x 96 dots) with adjustable contrast
Displayed Data Colorimetric data: L*a*b*, L*C*h
Color difference data: Δ(L*a*b*), Δ(L*C*H*), ΔE*ab, CMC(l:c), ΔE00(CIEDE2000) Other data display: FF value, line graph
Display Languages English, Chinese (simplified)
Storable Data Sets 440 data sets max. (total of sample and target data)
Illuminant/Observer Conditions Light source: A, C, D50, D65, F2, F6, F7, F8, F10, F11, F12
Observer: 2°, 10°
Operating Temperature/Humidity Range (*1) 0°C to 40°C, relative humidity 85% or less (at 35° ) with no condensation
Storage Temperature/Humidity Range -20°C to 45°C, relative humidity 85% or less (at 35°C) with no condensation
Power 4 AA-size alkaline or Ni-MH batteries or special AC adapter
Size 115 (W) x 257 (H) x 164 (D) mm
Weight Approx. 1.4 kg (without batteries)

Included Accessories

CM-A64 Hard Case
Buy Now


Hand Strap CM-A137
Buy Now

IF-A12 RS-232C Cable (IBM PC/AT) 2M
Buy Now


White Calibration Cap
Buy Now

Suggested Accessories


Accessory Switch CM-A23
Buy Now


Calibration Certificate
Buy Now


Connecting Cable CM-A58
Buy Now


EZ Spectro Checker
Buy Now


Grip CM-A43
Buy Now

IF-A13 RS-232C Cable (IBM PC/AT) 5M
Buy Now


White Cal. Plate with Cal. Certificate
Buy Now

Privacy Preference Center