Mode 1 – has very high smoke sensitivity combined with high heat sensitivity. This gives a high overall sensitivity to both smouldering and flaming fires. Mode 2 – has a smoke sensitivity similar to that of a normal optical smoke detector. This mode is therefore equivalent to a standard optical detector. It is suitable for applications in which wide temperature changes occur under normal conditions. Mode 3 – has moderate smoke sensitivity combined with a moderate sensitivity to heat. This combination is considered the optimum for most general applications since it offers good response to both flaming and smouldering fires. Mode 4 – has lower than normal smoke sensitivity combined with high heat sensitivity. This makes it suitable for applications in which a certain amount of fumes or smoke is considered normal. Mode 5 – has no smoke sensitivity at all but gives a pure heat detector response meeting the response time requirements for a Class A1R detector in the European Standard EN 54- 5. In this mode the detector will respond to slowly changing temperatures and has a ‘fixed temperature’ alarm threshold at 58OC. The analogue value in this mode will give the approximate air temperature over the range 15OC to 55ºC. In Mode 5 the smoke sensor is still active though it does not contribute to the analogue signal. As a consequence, if the detector is used in a dirty or smoky environment the optical sensor drift flag may be activated in the heat only mode.; Ideal for a wide range of applications Enhanced false alarm management Recommended, in specific modes, for hotel bedrooms and hospital wards Unaffected by wind or atmospheric pressure Well-suited to sensitive environments Five EN 54 approved response modes Heat only and optical only options Remote test feature

Responds well to slow-burning, smouldering fires Suitable for bedrooms and escape routes Unaffected by wind or atmospheric pressure Remote test feature Rejection of transient signals

Key Features:; Approved for use in the marine environment Five response modes for environmental adaptation Day/night switching for increased flexibility Drift compensation for false alarm reduction User programmability for data XPERT card addressing for increased security Ideal in environments that are dirty or smoky Unaffected by wind or atmospheric pressure Remote test feature