The gas flow will not start until you press the Gas button at the top of the display. This sets the chamber pressure. The chamber pressure will not be regulated until you press the Pressure button at the top of the display. You must have at least one gas on before you can turn the pressure on. This controls the power.
Set sets the power in watts.
If Time is set to zero, the power will run indefinitely once it is turned on. If Time is set to anything else, the system will run for the time set and then shut off the power, gas, and pressure. Run indicates how long the power has been on. The power will not come on until you press the RF button at the top of the display. Troubleshooting The menu option I want to select is grayed out.