Protective housings

Our protective housings have been designed for maximum protection of the probe's front lens and the fiber optics connector.

Each protective housing kit includes adapters of different lengths for the protective windows: the further away the protective window is from the front lens of the probe, the better the protection, even should the protective window be destroyed. This additional safety is countered by a reduction in the working distance, so that the optimum configuration depends on the respective operating conditions.

Particularly on inspection machines for container glass, collisions between containers (or glass shards) and the probes are frequent. The protective housing survives the majority of these collisions undamaged. Should a protective window be destroyed, a replacement costs only a fraction of a probe lens or even the complete full probe itself.

However, standard measuring housings do not protect probes against falls from great heights as this requires an additional buffer zone and thus extra installation space. Talk to us if you need a protective housing for this type of application.

Owing to the different dimensions of the various types of probes, our protective housings are specifically tailored to each probe in order to keep the additional space required down to a minimum. Additional threaded holes enable adjustment brackets to be screwed on directly.

Air-cooled housings

The temperature of a probe should not exceed 50-60°C. Cooled protective housings have therefore been developed for measuring hot glass. If the ambient temperature is lower and only glass containers with a small volume are to be measured, an air-cooled housing is sufficient.

A cold glass is integrated behind the housing's protective glass that protects the probe from much of the direct thermal radiation from the test object. The connected compressed air cools the probe and protective glass. The air outlet is at the rear end of the housing so that the cold air does not cool the glass and cause any tension.

Water-cooled housings

At higher ambient and glass temperatures our protective housings are used with combined water and air cooling. If required, the protective windows can be protected against contamination by sealing air.