|
|
Minolta CM-525i Spectrophotometer
The Minolta CM-525i Spectrophotometer utilizes d-8 SCI (specular component included) geometry. It integrates the reading over a θ25mm measuring area to provide better repeatability when measuring non-smooth materials, such as dyed thread, cloth or carpet. The Minolta CM-525i can use an optional memory card for data storage and can be connected to a computer, printer, or bar code reader for even greater versatility.
Specifications
| Illuminating / viewing system |
dl8 (diffuse illumination 8° viewing angle); SCI (specular component included) Meets IS0 772411 and DIN 5033 teil 7 for d/8 geometry; also meets CIE recommendations for dl0 geometry and ASTM E l 164 standards for t10 geometries |
| Detector |
Silicon photodiode array with spectral filter array |
| Wavelength range |
400 to 700nm |
| Wavelength pitch |
20nm |
| Half bandwidth |
20nm |
| Photometric range |
0 to 175% reflectance |
| Light source |
Pulsed xenon arc lamp |
| Minimum interval between measurements |
3 seconds |
| Battery performance |
Alkaline manganese: Approx. 2000 measurements at 10-second intervals |
| Illumination / measurement area |
θ30mm illumination l025mm measurement (Measurement aperture is θ 30mm) |
| Repeatability |
Spectral reflectance: |
Standard deviation within 0.20% |
| Colorimetric values: |
Standard deviation within ΔE*ab 0.05 |
| Measurement conditions: |
White calibration plate measured 30 times at 10-second intervals after white calibration was performed |
| Measurement and calculation time |
2.0 seconds to display of results (except Munsell and automatic selection of target value) |
| Display |
121 - character x 7-line (128x56-dot) dot-matrix LCD with adjustable contrast |
| Measuring modes |
Single measurement / automatic averaging of multiple measurements |
| Interface |
RS-232C standard, 9-pin female D-subminiature connector
Communication parameters:
Baud rate: 1200, 2400, 4800, 9600, 19200bps
Character length: 8 bits
Stop bits: 1 bit
Parity: NONE
Manual mode: Measurement data can be output (for each measurement at time of measurement; for all selected measurements stored on memory card)
REMOTE mode: Command input, data output, input of messages for display only
Comment can be input using bar code reader |
| Display data |
Spectral reflectance: Graph or numerical values
Colorimetric values: Numerical absolute color and/or color difference values in the following notations: XYZ, Yxy, L*a*b*, L*C*h, Hunter Lab, Munsell, MI (Metamerism Index), CMC (f:c), WI (ASTM E313), WI (CIE), YI (ASTM E313), YI (ASTM D1925), IS0 Brightness (IS0 2470) IS0 Status A and Status T densities
Data or messages transmitted from a computer connected to the RS-232C terminal can also be displayed in REMOTE mode. |
| Measurement conditions |
Illuminant: CIE Standard llluminants A, C, D50, and D65; Fluorescent
llluminants F2, F6, F7, F8, F10, F l l (TL84), and F12 (Ultralume
3000)
2 illuminants can be selected.
Observer: CIE 2' and 10' Standard Observers
Measurement conditions stored on installed optional memory card given priority. |
| Data memory |
Built-in memory: Up to a total of 200 sets of data (measurement and target color) including a maximum of 199 sets of target color data With optional 128KB memory card: Up to a total of 1350 sets of data including a maximum of 1349 sets of target color data With marketed 256KB SRAM card: Up to a total of 2700 sets of data including a maximum of 2699 sets of target color data |
| Target color data |
Target color data can be set by measurement, by data input using keys, or by data input from computer connected to RS-232C terminal
Target color data can be temporarily deleted and later recovered.
Automatic target color selection function determines which target color is closest to measured color |
| Tolerance data |
Upper and lower limits for color difference values in the following color spaces:
XYZ, Yxy, L*a'b*, Hunter Lab, L*C*h, MI, CMC (l:c), Wl (ASTM E313), WI (CIE), Yl (ASTM E313), YI (ASTM D1925), IS0 Brightness (IS0 2470)
Upper and lower limit values can be set independently. |
|
