Luminance meter
Unfors Xi Light Unfors

If you own an Unfors Xi it is possible to add light measurement capabilities to your existing system either at time of purchase or as an upgrade when the need arises.

To be able to use the Light detector your Unfors Xi Base Unit needs to have firmware release 4.0 or higher to be compatible. The upgrade can be made at any time or ideally at time of the annual Service Program.
The Unfors Xi Light detector is capable of measuring illuminance and contact luminance measurements on CRT and LCD monitors as well as testing view boxes and collimators. Luminance or illuminance measurements are easily selected by either attaching or detaching the optical tube to the detector housing. Data can be stored in the internal memory or exported to the Unfors Xi View via serial or Bluetooth communication. The Unfors Xi Light detector has a perfect cosine-corrected response for ambient light and a state-of-the art photopic response. In addition, it fulfils the DIN 5032 Class B specifications for both illuminance and luminance.