How does Automist Smartscan Hydra Work?

When Automist Smartscan is triggered by a ceiling-mounted multi-sensor wireless or a wired detector, all the linked spray heads begin scanning. They start measuring the temperatures within the room using an infrared sensor. The scan is looking for an exceptionally high-temperature reading, or a differential increase between scans. Once the temperature exceeds a threshold that head is deemed to have successfully located a fire and the pump turns. It then delivers watermist to the location of the fire.

Watermist uses a different principle of firefighting to traditional sprinklers, which suppress fires by wetting surfaces and directly cooling the flames with large water drops. Watermist uses fine droplets, that evaporate at the base of the fire, to extract heat and displace the oxygen fuel. This results in fire control, suppression, or extinguishment. Our spray heads are wall-mounted (around light switch height) to avoid ineffective evaporation in the hot layer in the ceiling and the upward flow of hot combustion products. Automist leverages the natural turbulence the fire creates and seeks to ensure watermist is entrained into the fire plume.

watermist entrainment into the fire plume

If any wired or wireless detector connected to Automist Smartscan Hydra is removed or faulty (or has a depleted battery), it will cause the system to enter fault mode and sound. This condition can be hushed for 12 hours by pressing the STOP button but can only be permanently removed by addressing the fault.