How much current does a typical flame sensor produce?

A typical flame sensor produces a current in the range of 1-30 microamps. This range is significant because flame sensors operate by detecting the presence of a flame through the emission of ultraviolet or infrared radiation, which induces a small current.

The low current is indicative of the sensor's sensitivity; it is designed to respond to the slight signals generated by the flame, allowing it to detect even minute changes in flame intensity. When a flame is present, the sensor generates this current, which then can trigger a safety mechanism or control system to ensure proper operation of the heating system or prevent hazardous conditions.

This ensures effective monitoring and safety for heating applications by allowing timely response to the presence or absence of flame.