Apollo Heat Detectors

Heat detectors suit places where smoke, dust, steam or fumes would trigger a smoke detector, such as kitchens, plant rooms, car parks and loading bays, which the Apollo XP95 55000-401APO and AlarmSense 55000-193APO product descriptions name. They respond to temperature rather than smoke particles.

A1R and A2S are heat detector classes. An A2S detector, such as the Apollo XP95 55000-400APO, alarms at a fixed 55°C. An A1R detector, such as the AlarmSense 55000-190APO, combines a fixed upper limit with rate-of-rise monitoring, so a rapid temperature climb also triggers it.

A CS detector is a high-temperature fixed heat detector for areas that run warm normally. The Apollo XP95 55000-401APO alarms at 90°C and the AlarmSense 55000-193APO at 84°C. The AlarmSense 55000-193APO head suits locations such as commercial kitchens, workshops and plant rooms.

Orbis marine heat detectors, such as the ORB-HT-41001-MAR, ORB-HT-41002-MAR, ORB-HT-41003-MAR, ORB-HT-41004-MAR and ORB-HT-41006-MAR, are Apollo's conventional heat detectors for marine installations. They use a single thermistor to sense air temperature and are part of the Orbis Marine range of conventional fire detectors, suited to areas that are dirty or smoky under normal conditions.

An intrinsically safe (I.S.) heat detector is one whose use is governed by an intrinsic safety gas classification. The Apollo Orbis I.S. ORB-HT-51145-APO monitors temperature with a single thermistor network, and the ORB-HT-51149-APO states that its operating temperature is restricted by that classification, with Class T5 rated at +45°C and Class T4 at +60°C.

Yes. The Apollo REACH Wireless RW1000-460APO is a wireless analogue addressable heat detector that can be configured as rate-of-rise or fixed temperature, and XPander heat detectors such as the XPA-CB-11170-APO measure the air temperature every 2 seconds and communicate by radio.

Series 65 is an Apollo heat detector range. Heads such as the 55000-122APO, 55000-126APO and 55000-132APO monitor temperature with a dual thermistor network, or a single thermistor on CS versions, and suit applications where smoke detectors are unsuitable. The 55000-126APO description also lists a flashing LED and a magnet-operated test switch option.

A multi-sensor combines heat sensing with a second sensor. The Apollo XP95 55000-885APO pairs optical smoke with a thermistor, the Orbis ORB-OH-13003-APO is more sensitive than an optical detector to flaming fires, including liquid fires, and the Discovery 58000-305APO combines carbon monoxide with heat.

The Apollo ORB-HB-00020-APO is a heater base for cold climates, where icing or condensation could affect a detector. It raises the temperature of the detector chamber by about 10°C, and Apollo recommends pairing it with a waterproof base cover or deckhead mounting box.