Measuring Geometrics |
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45 ° illumination
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15 ° , 25 ° , 45 ° , 75 ° , 110 ° aspecular viewing
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Angular Accuracy ±0.15 °
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Fibre optic pick-up, coupled with DRS technology
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Measurement Area |
12mm diameter
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Light Source |
Gas-filled tungsten lamp, color corrected to approximately 4000 ° K
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Illuminant Types |
C, D50, D65,D75, A, F2, F7, F11 and F12
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Standard Observers |
2 ° and 10 °
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Receiver |
Blue-enhanced silicon photodiodes
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Spectral Range |
400 – 700nm
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Spectral Interval |
28 band spectral measurement:
10nm interval from 400nm – 640nm
20nm interval from 640nm – 700nm
15nm bandwidths
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Spectral Data Output |
Spectral reflectance values are available for output from the RS232 port for 5 angles at 10nm intervals from 400nm 700nm
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Measurement Range |
0 to 400% reflectance
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Measuring Time |
Approximately 2 seconds
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Inter-Instrument Agreement |
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0.18 D E* average on reference BCRA tile set
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0.35 D E* maximum on any chromatic tile
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0.15 D E* maximum on any grey tile
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Short-Term Repeatability |
0.10 D E*ab on white ceramic (standard deviation)
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Lamp Life |
Approximately 500,000 measurements
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Power Supply |
Six rechargeable AA Ni-metal hydride batteries included – removable battery pack; 7.2 VDC rated @ 1400 mAh
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AC Adapter Requirements |
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MA68: 90 – 130VAC, 50 – 60Hz, 15W max
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MA68X: 180 – 260VAC, 50 – 60Hz, 15W max
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12 VDC @ 700mA
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Charge Time |
In Instrument: 4 hours (50%), 16 hours (100%)
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Measurements per Charge |
1,000 5-angle measurements
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Data Storage (Five Angles) |
200 Standards, 850 Samples
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Data Interface |
Patented bi-directional RS232, 300 – 19,200 baud
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Display |
4-row by 20 character supertwist dot matrix LCD
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Operating Temperature Range |
10 to 40 ° C
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