Flame Detection

WMFE design & install flame detection to operate with their water mist systems. Flame detectors use optical sensors working at specific spectral ranges (usually narrow band) to record the incoming radiation at the selected wavelengths. 30 - 40% of the energy radiated from a fire is electromagnetic radiation that can be read at various spectral ranges (such as UV, VIS, IR).

Flame detectors are available in a number of sensor types. The most common sensor types include UV detectors, IR detectors, UV/IR detectors, IR/IR detectors, and IR^3 (triple IR) detectors, and triple IR spectral band detectors.

IR only detectors work within the infrared spectral band. The mass of hot gases emits a specific spectral pattern in the infrared spectral region.

UV and IR spectral band detectors compare the threshold signal in two spectral ranges and their ratio to each other to confirm the reliability of the fire signal. This style minimizes false alarms. Dual IR (IR/IR) band spectral band flame detectors function similarly.

Flame detectors are available with a number of features to help them better perform their tasks, and to better survive flame laden or explosive environments. These features include adjustable time delays and automatic self-tests explosion-proof enclosures, and integral air conditioning systems.

WMFE will be pleased to provide guidance on the siting & use of flame detection.