The heating for the Beam Smoke Detector Series 6500 is used to avoid condensation in the detector housing and on the detector optics if the detector is mounted in areas with low temperatures. Condensation on the optics of the detector can cause false activations or faults of the beam smoke detector

If the heating is used for a Beam Smoke Detector 6500R or 6500RS, the additional power for the heating must be included in the total power consumption of the detector. In the case of the Beam Smoke Detector 6500, the heating must be powered by an additional 24V power supply. In the case of a Beam Smoke Detector 6500S, the heating is powered by the 24V supply that is needed for the integrated test unit