| 摘要 |
PROBLEM TO BE SOLVED: To provide an electropneumatic regulator capable of effecting easy and rapid vision of an operation state and operation abnormality as miniaturiza tion is practicable and provide the electropneumatic regulator capable of preventing of worsening of a state coping with operation abnormality. SOLUTION: A flexible substrate 62 is disposed between a case 60 of the electropneumatic regulator and a flow passage block 61 and a luminous element 69 provided with green LED 69a to be emitted in a green color and a red LED 69b to be emitted in a red color is mounted on a flexible substrate 62. A prism 49 situated in the front of a flow passage block 3 is situated oppose to the emission element 69 and light emitted by the green LED 69a or the red LED 69b of the luminous element 69 is guided to the front of the electropneumatic regulator 1. The operation state of the electropneumatic regulator 1 is decided by a pressure sensor 68, and according to its decision result, the green LED 69a and the red LED 69b are caused to emit light, and a prescribed display color is displayed on the prism 49.
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