| 摘要 |
A method and apparatus for plasma cutting is disclosed. A regulated flow of gas is provided to the torch. Power is also provides to the torch. A controller controls the system and includes a delay circuit. A gas pressure sensor is connected to the torch and/or the gas flow control, and/or the controller. A user indicator is connected to the delay circuit, and the user indicator is activated upon low pressure being detected, and maintained even if the pressure rises.
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