MAP20071026291 Reed, John Ionisation detectors in the balance / John Reed Sumario: Automatic fire detection systems depend on a fine operating balance. On the one hand they must be sensitive enough to detect a real fire quickly, whilst on the other hand ignoring a wide range of phenomena not associated with a true fire condition. There is often little tolerance between successful detection of an impeding disaster and the time-wasting and often costly mistake of a false or unwanted alarm En: Fire prevention. - London. - nº 291, july-august 1996 ; p. 14-15 1. Seguridad contra incendios . 2. Detectores de humos . 3. Detectores de incendios . 4. Sistemas de detección automáticos . 5. Detectores iónicos . 6. Alarmas . I. Title. II. Título: Fire prevention.