You can order single Haze standards or the full set of 5 haze standards through HunterLab for use with any of our sphere instruments – UltraScan PRO and UltraScan VIS. These solid, transparent plastic plaques (calibrated or uncalibrated) can be effective in monitoring instrument performance in measuring wide angle scattering over time.
The geometry of an instrument is the relative position of the light source, sample plane and detector, and is one of the 6 key parameters that define a color measurement. There are two general categories of instrument geometries – directional 45°/0°(or 45°/0°) and diffuse d/8° sphere. To tell the difference between directional and diffuse instrument geometries, look […]
FAQ: “I’m attaching a couple of pictures that I took from one of our UltraScan PROs. You see there is a crack on the white tile which does not look good to me. Do we need to replace this instrument white tile standard? Unfortunately, this instrument white tile will need to be replaced.
Instructions for Replacing the White Tile on your HunterLab Instrument When purchasing a replacement white tile you will receive a CD that accompanies your new tile. This CD will list your instrument model and serial number.
There are two Tomato Tiles in general use – the European BCR-400 Tomato Tile and the American USDA/UCDavis Tomato Tile. Both are “tomato red” in color but visually different.
FAQ: “Our site requires us to standardize the instrument every 4 hours. Is there any way to change this in the EasyMatch QC software?” The EasyMatch QC software prompts the user to Standardize the instrument ever 8 hours, this is the default setting when the software is installed. If your company requires the instrument to be […]
FAQ: “I would like to be able to read my product in Reflectance Specular Included (RSIN) mode and Reflectance Specular Excluded (RSEX) mode. Is this possible to do without manually switching modes every time?” Yes, the EasyMatch QC software has a function called Multi Mode. Multi Mode is set up so the instrument can standardize and read […]
These APHA/Pt-Co/Hazen liquid color standards were originally developed as references for visual APHA/Pt-Co/Hazen Color comparison to samples. Their role with instrumental APHA/Pt-Co/Hazen Color measurement is primarily as a performance qualification check of the instrument prior to measuring liquid product samples, or to validate the instrumental-to-visual correlation. HunterLab instruments have their own internal diagnostic standards to verify […]
There are no physical liquid standards specifically designed to verify the Yellowness Index of liquid samples over time. Yellowness Index is defined as a mathematical function such that a perfect clear of 100% transmission, typically represented by the transmission cell filled with DI water, will have a YI value of 0. However, a good workaround solution […]
FAQ: “How do I measure a very chromatic and dark sample in transmittance? Is there a smaller path length cell that I can use for my dark chromatic sample? It currently does not transmit much signal through my 10mm cell.” Yes, HunterLab does offer a smaller 2mm path length top loading cell for very dark […]
My green tile values are not correct in the EasyMatch QC software. How can I change them? To edit the existing green tile values for your instrument in EasyMatch QC go to Sensor/ Diagnostics/ Green Tile Test. An EasyMatch QC window will open that prompts you to install the standard port plate. (The standard port […]