The Photoelectric Thermal (Heat) Detector Siemens FDOT421 Multi-Sensor is an intelligent, addressable multi-criteria that incorporates optical and thermal sensors, and uses signals to create an intelligent detector. Besides, the result is a detector that can provide detection to a wide range of products of combustion. Also, model Siemens FDOT421 is UL 268 7th and can incorporate advance built-in isolation which improves reliability addressable findings.
The multi-criteria additionally has state of the art microprocessor circuitry; as well as detector self-diagnostics and supervision programs that are used on Fire Safety Modular XLS/V and FC/FV20 control panels.
Additionally, Model FDOT421 is a plug-in and addressable two-wire multi-criteria detector that is compatible with Siemens’s intelligent, addressable systems.
In Addition, Siemens FDOT421 Multi-Sensor utilizes an infrared light-emitting diode and infrared light-sensing photodiode. The smoke chamber was design to manage light dissipation as well as extraneous reflections from dust particles or other non-smoke, airborne contaminants in such a way as to maintain stable, consistent detector operation. Model Siemens FDOT421 also utilizes a modern, accurate, and shock-resistant thermistor to sense temperature changes. The signal processing detecting algorithms allowing the detector to first gather the smoke and thermal data.