BS EN 61920:2004 PDF

What is BS EN 61920 - Classification of IR devices about?

Infrared (IR) is invisible electromagnetic radiation. BS EN 61920 describes the classification of IR devices into groups and classes to identify and clarify problems caused by mutual interference. Mutual interference is caused by the increasing parallel application of different IR systems. BS EN 61920 considers the wavelength range from 700 nm to 1600 nm and includes all systems based on free air applications which intentionally or unintentionally use IR radiation in this range. Products that unintentionally emit IR radiation, such as illumination equipment are not deemed to be IR application systems. They are, however, integrated into BS EN 61920 to enable facility planners to take into consideration and foresee provisions against disturbance of IR application systems by such unintentionally emitted radiation.