Method for regulating the gas supply in a gas-fired forced air burner has an ionization electrode providing a signal which is compared to a reference value, gives improved control

摘要

The earthed gas burner (1) has a speed controlled blower (2) and gas supply (3) valve (4) controlled by an electronic unit (5) having an input from a potential divider unit (10) receiving signals from ionization electrodes (6,7) in the flame (F). The base calibrated value (UK) is defined, then stored and a first (Ui1) and second (Ui2) ionization signal are compared.