GAS INTERRUPTION INDICATOR

摘要

PURPOSE:To confirm indication through gas interruption system while to take out an indication signal at remote position, by receiving an indication light through a phototransistor then converting into an electrical signal to employ the converted signal as an indication light and transmitting to remote position. CONSTITUTION:Upon lighting of LED in gas interruption system, the indication light is received by a phototransistor 10 to convert the indication signal into an electrical signal at the converting section 11. Here, a transistor 14 is turned on to bring the output of an inverter 16 high through a resistor 15 and the converted signal is transmitted through a buffer 17 to the transmitting section 18 to be taken out at remote position through a cable line 23 while simultaneously the converted signal is transmitted to the indicating section 19. The output from inverter 20 will be brought lower than the high output from the inverter 16 to light LED through a resistor 21 and LED 22.