A flame detector is a sensor designed to detect and respond to the presence of a flame allowing flame detection. The flame detector can often respond faster and more accurately than a smoke and heat detector due to the mechanisms it uses to detect the flame. It works by detecting the presence of a flame within the furnace. This sensor is a short length of a thin metallic rod that creates a small current of electricity to confirm there is a fire burning within the furnace.
The flame sensors are utilized in several hazardous environments and hydrogen stations, industrial heating and drying systems, and industrial gas turbines.
The primary purpose is to minimize the risks associated with combustion. The range of flame sensors is 760 nm to 1100 nm can be detected.
There are two sensor digital and analog outputs and sensitivity can be adjusted via the blue potentiometer. You cannot bypass the flame sensor and manually light your furnace. The lights furnace and then shut down after a few seconds. The flame is burning inside the burner assembly of your furnace. In this sensor a low current voltage to the flame sensor. This is usually 40 to 80 volt AC.
It is nothing more than a stainless steel rod partially encased in porcelain. There are no moving parts and switches. When attached to a control module then the module sends out an AC voltage to the sensor. The dirty flame sensor can be easily cleaned. Not all furnaces have a flame sensor and if the furnaces have one it will be mounted close to the burner with the metal rod positioned in the flame. The flame sensor varies in size and shape.
There are three types of android sensor support: motion sensor, position sensor, environmental sensors.