The pressure tank gas pressure exception alarm

Published:2011/8/3 22:59:00 Author:qqtang | Keyword: pressure tank, gas pressure, exception alarm | From:SeekIC

The working principle of the circuit　The pressure tank gas pressure exception alarm circuit consists of the pressure detection control circuit, LED indicating circuit and audio alarm circuit, see as figure 8-145. The gas pressure detection control circuit consists of the power supply switch S, battery GB and the electric connector air meter Q.The LED indicating circuit consists of the green LED VL1, red LED VL2 and the resistors of R1 and R2.The audio alarm circuit consists of the audio integrated circuit IC, transistor V, resistor R3, capacitors of C1 and C2, diodes of VD1 and VD2, loudspeaker BL.



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