Altana 345 000 016, Руководство по эксплуатации

Страница: 41 / 96

BYK-Gardner GmbH Perform Measurements | 4
295 024 855 E 2106 spectro2guide Pro 41
• Δ E Fl : Indicates whether and how much fluorescent energy is emitted. The
original specimen are compared to the specimen after the estimated fluores-
cence degradation.
• Δ E
zero
: Calculates the estimated color difference after the fluorescence has de-
cayed.
Place instrument on flourescent sample and measure it, see for example “ Differ-
ence Measurement [
}
31] ”.
The status of the fluorescence detection is signaled via an acoustic and a visual sig-
nal. For the visual signal the status LED on the top of the instrument is used, see
“
Frontside [ } 16] ”:
• Status LED = Blue : Fluorescence has been detected.
– Emitted energy > 1% of excited energy.
– This must apply to at least 1 of the 12 monochromatic LEDs.
• Status LED = Pink : Fluorescence excides predefined limit.
– The difference has to be larger than 1/3 of the tolerance due to fluores-
cence.
– This tolerance value can be customized in the software “smart-chart”.
A quantification of the fluorescent light is possible with the “Fluorescence” slider
in the software “smart-chart”.
A calculation is made for the color data after fluorescence has decayed - e.g. due
to the impact of sunlight.
4.6 Jetness Measurement
The spectro2guide Pro can measure the jetness of deep black colors with special
indices.
Notice
For jetness measurements separate check and calibration standards are included,
see “
Instrument Calibration [
} 64] ” > “
Pro Variant [
} 71] ”.