Published:2011/8/6 9:29:00 Author:Robert | Keyword: Kangbao, Disinfection, Cabinet, Repairing | From:SeekIC
1.The circuit.
The 220V commercial power phase wire L is connected to the power button TQ through the temperature fuse RD. By pressing QA, the commercial power would be added into the relay J's coil through the dual-metal type temperature controller WR's normally closed contactor. And then the relay J would be conected, its normally open contactor J1 is also conducted and self-keeping to supply power for the relay coil. At the same time the contactor J2 is conducted to supply power for the electrical heater tube EH1, EH2. And the heating indication lamp LED is lighting which shows the disinfection cabinet is heating. The resistor R in the circuit is in series with the heating indication lamp which has the function of current limiting. The adjustable temperature controller WK make the temperature in disinfection cabinet meet the disinfection requirements. Its weakness is the operating temperature's error is some bigger. The electrical heater tube EH1, EH2's power is about 300W which is separately installed in the bottom and back in the cabinet.
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