What is Intrinsic Safety? (I.S.)

For cost & mechanical reasons, fire detectors are made intrinsically safe rather than flameproof. Intrinsically safe equipment operates at such low power and with such small amounts of stored energy that it is incapable of causing ignition.

Apollo offers a Conventional I.S range – Orbis I.S & an addressable solution.

The XP95 I.S. Optical Smoke Detector uses the light scatter principle to quickly and effectively detect a range of slow burning and smouldering fires.

The XP95 I.S. Heat Detector is distinguishable from XP95 I.S. smoke detectors by its low air-flow resistance case which allows good contact between the sensing thermistor and the surrounding air.

The Manual Call Point is used to manually initiate an alarm signal on the fire detection system. The Manual Call Point is suitable for use in areas where explosive atmospheres are, or may be, present.

The Orbis I.S. Optical Smoke Detector works using the light scatter principle and is ideal for applications where slow-burning or smouldering fires are likely.

The Orbis I.S. Heat Detector monitors temperature by using a single thermistor network which provides a voltage output proportional to the external air temperature.

The Orbis I.S. Multi-Sensor Detector benefits from the same false alarm technology as the Optical Smoke Detector with the addition of a heat sensing element.