What is the difference between a photoelectric sensor and an ionization sensor smoke detector?
Photoelectric smoke detectors use reflected light to indicate the presence of smoke. They operate using a light source, a light beam collimating system and a photosensitive device. When smoke particles obscure part of the light beam, the light reaching the photosensitive device is reduced and the alarm is triggered. Ionization smoke detectors contain a small amount of radioactive material that ionizes the air in a sensing chamber. This allows for a small flow of electrical current in the chamber. When enough smoke enters the chamber, the flow of electricity through the chamber is interrupted and triggers the alarm. How do I choose an appropriate fire detection system for my workplace? For fire detection devices to give a prompt warning of a fire, they must be appropriate for the location you want to protect. They should be selected based on the burning characteristics of the materials present and the nature of the location. Smoke detectors are designed to identify a fire during its smo
