This sensor is appropriate for monitoring of the intensity of UV radiation from UV lamps especially in waste water plants. It should be placed typically parallel to the lamps in a separate submersion tube with diameter 23 mm. Adapting to other tube diameters can be done easily with Teflon rings or Viton O-rings to guarantee centering in the tube.

The cable is attached on the sensor with a PG cable gland and is protected in the first part against UV radiation. The length from the aperture to the end of the cable protection is approx. 750 mm. Entrance of the radiation is rotation-symmetric over the quartz tube. Predominantly radiation perpendicular to the longitudinal axis will be measured.