FAQ: We are about to have a lab audit and would like to know how the performance of our ColorFlex EZ can be verified. We need to meet the requirements of our auditor.
Answer:
Here is a protocol for your HunterLab instrument that most auditors accept as valid performance qualification.
Your instrument is factory-calibrated by HunterLab and should not require further calibration as long as it has a PASS rating on its diagnostic tests.
The instrument is standardized every 4 to 8 hours. The sensor interval can be user-set but the user must standardize the instrument. This 15 second process sets the bottom and top-of-scale to assigned, traceable, stable instrument tile standards.
Run sensor diagnostic tests - two for directional 45/0 geometry instruments; three for diffuse sphere instruments.
Short Term Repeatability on White Tile to verify the electronics are in good health.
Long Term Repeatability on the Green Tile to verify the photometric performance of the entire optical path is the same as when last at factory.
Long Term Wavelength check to verify the wavelength response of the optical path as when last at factory (diffuse sphere instruments only).
A PASS on the PDF reports all three diagnostic tests affirms the instrument is operationally qualified as being in good working order.
Do you still need more information? Submit a ticket and our support team member will reach out to you soon!