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The fishponds hot days hypoxia automatic oxygen control circ

2015-02-28 02:21  
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The fishponds hot days hypoxia automatic oxygen control circuit
In the hot days, fishponds water temperature also will increase, there is a sharp decline about the oxygen content in water. It is extremely detrimental to the growth of hypoxia on fish, and the added oxygen control circuit will automatically start when the water temperature is higher ( 28 ℃), the water plus oxygen machine is driven by the motor for agitation. The control circuit is composed of thermostat voltage comparing circuit, multivibrator circuit, thyristor motor control circuit, audio sounding circuit and AC buck rectifier circuit and other components, and it is shown in figure.