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Liquid-Level Alarm

Liquid-Level Alarm

+74362158IC1NE555O/PGNDVccRGNDIC2UM6621O/P3Vcc++C1100μ25VR21.5KR1150KC20.01μC30.01μC60.01μPROBESR622KR54.7KR4120ΩT1BC557R3100KT2BC547R7680ΩR8220ΩC825VD13.3V0.5WZENER+C72.2μ25VC9100μ25VVR11KPRESETT3SL100R9470ΩLS10.5WSPEAKER+12VGNDC40.1μC50.1μLiquid-Level Alarm
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publish time: 2020-10-23
Circuit Everyday

In the water level controller of the tank, direct current passes through a metal probe mounted in the tank to detect the water level.This leads to electrolysis and corrosion of the probe, which inhibits current conduction and reduces its performance.As a result, the probe must be replaced regularly to maintain the appropriate current.

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