An anonymised, representative calibration scenario illustrating common risks in professional optical measurements.
Reduced sensitivity in the short-wavelength region.
The customer observed unstable UV-weighted results despite normal visible-range checks. The UV configuration and response were evaluated separately.
Calibration results are only useful when the measurand, instrument configuration and later application match. A valid certificate for the wrong configuration does not control measurement risk.
The case demonstrates why visible-range control data cannot automatically confirm UV performance. Configuration-specific calibration and intermediate UV checks were recommended.
