Intrinsically-safe multi-functional controller
An intrinsically safe and multi-functional technology, applied in the direction of comprehensive factory control, electrical program control, etc., can solve problems such as inability to control in multiple directions, difficulty in safe production, and no signal reflection indication, etc., to achieve strong anti-interference ability and easy maintenance , multi-function effect
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[0040] The implementation of the utility model will be described in detail below in conjunction with the accompanying drawings.
[0041] The utility model is an intrinsically safe multifunctional controller, which includes a plexiglass shell, a 16-pin lead-out plug and a socket, a T-shaped metal plate fixed to the lower mounting plate and fixing screws on the upper end of the shell, and a piece of electronic component installation inside the shell. Metal double-layer circuit board, the front of the circuit board is equipped with a 36V / 15V intrinsically safe distribution transformer KB, a 0.2A fuse FU, two DC12V small solid state relays J1, J2, and two NPN transistors V1, V2, an integrated rectifier bridge ZL, a current-limiting metal resistor RI for short-circuit current limiting protection. 2 light-emitting diodes D1, light-emitting diode D1 as power supply indication, light-emitting diode D2 as work indication of solid state relay J1, 4 protection diodes D3, D4, D5, D6, prot...
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