the circuit of the temperature and humidity automatic controller (1)

Published:2011/6/21 7:04:00 Author:Ariel Wang | Keyword: temperature , humidity, automatic controller | From:SeekIC

When the value of temperature and humidity in monitor room is beyond the set value,the voltage of IC2's pin-6 is lower than the voltage of pin-5. The in-circuit of IC2 overturns.Pin-3 outputs high level.K is pulled over.The normally open contacts K1-1 and Kl-2 are connected.The discharge fan and the ventilator get to work until the value of temperature and humidity in monitor room is within the set value.RP1 is used to set the value of temperature in monitor room.RP2 is used to set the value of humidity in monitor room.When you adjust it,you should put S at the position of adjusting .Then you should adjust the resistence of RP1 and RP2.When you use it,you should put S at the position of automatic .



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