To provide accurate data, your spectrophotometer needs to be well-maintained. This includes calibrating it daily, at the start of a shift, or before beginning any important measurement job. Calibration is important both for color measurement and to maximize inter-instrument agreement.
Here’s what you need to know about calibration tiles.
Absolute black is measured using a “zero reflectance” or “black trap” attachment that absorbs all light. For white, the readings of a particular, serialized reference tile are stored in each instrument. Both the tile and trap need to be scrupulously clean to avoid false readings and to also protect the spectrophotometer and subsequent samples from contamination.
In addition to black and white, blue or green tiles are commonly used as diagnostic references.
To keep your color measurements as accurate as possible, calibration tiles need special attention. Here are some guidelines.
Even a small amount of dirt, oil, or abrasion on the surface of a tile will affect measurement accuracy. Handle tiles with utmost care and replace them if they become damaged in any way.
If you ever have questions about using or caring for your equipment, our support team can help. Find your local team here.
Want more advice on getting accurate measurements? Next, read our blog on four environmental factors you should avoid when performing color measurements.
When data meets color, inspiration meets results.