| 摘要 |
PURPOSE: An air tank capable of checking an exchange period is provided to minimize the contamination of the air tank according to poor maintenance. CONSTITUTION: An air tank is constituted as follows. A sensor unit is installed in order to measure the pressure or humidity at the inner diameter of an inlet port(100) of the air tank. The sensor unit is connected to a control block(200) installed at one side of the inlet port. The control block includes a timer, a sensor unit and a MICOM(210) connected thereto, and an output unit(230) displaying an output signal to the outside by the MICOM.
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