Fire alarm systems - Esser

O²T-black detector

OT Serie IQ8Quad-black

Esser 802374.BLACK

Multisensor fire detector using patented dual angle optical scatter as well as additional heat detector sensor evaluation to guarantee the detection of different types of fire from smoldering fires to open fires with constant sensitivity level. Smoke sensor signal identification to ensure smoke classification and reduction of false alarms caused by interferences, for instance, water vapor or dust. Used when early and reliable fire detection is requested. Because of its excellent detection characteristics and enhanced false alarm management, the detector is also able to identify the standardized TF1 and TF6 test fires. The O²T multisensor fire detector is also suitable for applications with higher temperatures of up to +65 °C. The detector is provided with an integrated isolator. A remote indicator can be connected.

Fire detector dual technology optical/thermal, with dual optical sensor, IQ8Quad series.
Can be connected directly to the esserbus® loop.

  • Thermal component alarm threshold: 69°C.
  • The use of two LED diodes with two different angles of inclination within the optical chamber enables the detection of both white smoke and black smoke.
  • Suitable in particularly difficult environments where fire can generate white smoke and black smoke due to the presence of different materials.
  • Suitable in environments such as machine shops, industrial sites, paper mills.
  • Continuous monitoring of the status of the optical chamber and sensor electronics, including continuous monitoring of CPU functionality.
  • Automatic drift compensation in case of variations due to critical environmental conditions (e.g. dust and/or humidity).
  • Presence of experimental false alarm algorithms that, when properly compared with the environmental information collected, allow the false alarms to be eliminated and not evaluated as fire alarms.
  • By means of further specific algorithms, the detector is able to identify any electromagnetic disturbances generated by equipment such as inverters, conveyor belts, radio/wireless equipment and audio speakers.
  • Integrated short-circuit isolator.
  • Two-colour LED for evaluation of operating and alarm status.
  • Thermal sensor operating class: BS.
  • Degree of protection: IP40 extendable to IP 43.
  • Identifying ring colour: Black

Details - O²T-black detector

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