Mashgas, coal gas detection and alarm circuit

Published:2011/4/28 22:56:00 Author:Ecco | Keyword: Mashgas, coal gas, detection , alarm , monolithic, integrated circuit | From:SeekIC

Mashgas, coal gas detection and alarm circuit composed of CH217 monolithic gas detection alarm integrated circuit. R1 in the figure is the gas sensing probe, the resistance reduces linearly with gas concentration arbitrarily increasing, RP3 is used to adjust the amplifier output, R6, R7 extract both forecasting and risk reference signal voltage.



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