FLUOSCAN REFLECTOMETER SYSTEM
If you now wish to evaluate quantitatively the progressive color changes observed on samples emerging from a METRASTAT 905 oven, our automatic “TRUE COLOR” scanning FLUOSCAN reflectometer will do it for you, fast, with precision and reproducibility.
It will also measure the progressive fluorescence which occurs in polymers during their thermal degradation!
- METRASTAT white light/UV Reflectometer
OPERATING PRINCIPLE
Five “TRUE COLOR” photodetectors read up to five samples, under either white or ultraviolet light after they have been baked in the METRASTAT 905 heat stability testing oven.
Any color change or fluorescence increase, occurring during degradation, is consigned in an application software as an image and a complete set of CIE L*a*b* values.
After having been baked simultaneously in the METRASTAT 905 oven on a special carrying frame holding five separate but wider titanium carrying trays, up to 5 samples, all one inch wide, can be scanned simultaneously on the multiple track FLUOSCAN reflectometer.
The 5 captors of the apparatus operate in two separate modes of photoexcitation, one under white light illumination, the other under UV light illumination.
In either one of these two modes, the scanning reflectometer generates, on its integrated touch screen, a scaled image showing the progression of color change or fluorescence increase in each sample.
It also delivers the following color curves in the CIE L*a*b* color space as well as other useful parameters:
- ΔE Color Deviation Curve
- L* Lightness Curve
- a* (>0) Reddening Curve
- a* (<0) Greening Curve
- b* (>0) Yellowing Curve
- b* (<0) Blueing Curve
- dt Differential Curve
- YI Yellowness Index (ASTM D1925)
An application software (FluoScan 3.0) processes data collected from the reflectometer on an external, dedicated, computer. On screen and as exportable format, it delivers images, tables and discoloration curves in all three co-ordinates of the CIE L*a*b* color space.
FLUOSCAN software
TECHNICAL SPECIFICATIONS OF THE FLUOSCAN
- Multitrack “True Color” Reflectometer for the evaluation of gradual color change and fluorescence
- Resistant to corrosion or tropical climate conditions
- Traveling carrying rack with fiveseparate non corrodable, non adhesive sample holding trays
- Traveling carryig plate with white background for measuring color of transparent films
- Manual swich from white illumination- to UV illumination mode via print screen
- Automatic start and stop of data transfer
- Automatic switch-over from the static stabilisation of the light sources to the dynamic reading process
- Display of the travel progression of the samples in the reflectometer
- Early manual start of the reading process possible
- Emergency button for immediate interruption of the test and quick release of the carrying plate
- Automatic quick release of the carrying plate when restarting the apparatus after a power failure
- Modular construction for easy maintenance
- Optional accessories:
- Spare sample-holding trays, either for sheet and profile or for paste, powders and pellets
| Power supply | 185-245VAC/48-62Hz |
| Maximum power uptake | xx W |
| Number of tracks | 5 |
| White light illuminant | D65 (LED) |
| UV light illuminant | 365nm (LED) |
| Number and size of samples | 5 x (260 x 25 x 6mm) |
| Warm-up time | Automatic |
| Run duration | 15 min |
| Dimensions (WxHxD) | 450x400x790mm |
| Weight | 47 kg |
The manufacturer retains the right to modify the technical specifications above, anytime and without prior notice.
