[MCMIG85]

I'm new to MIG welding. I have a 20 cubic foot tank that I just got filled with 75% Argon % 25% CO2. My question is about the gauges in the photo below. My first gauge is CFH (cubic feet of gas per hour) which I understand. I'm not sure what the second gauge is measuring though. It's measuring 700 PSI. Is it just measuring the pressure in the tank? Also, should I be paying attention to the second gauge? What is it telling me? Thanks

welding gauges.jpg (2.47 MiB) Viewed 2337 times

[cj737]

The gauge nearest the tank valve reads pressure of the inside the tank. You do need to pay action to it because as it approaches/reaches 0psi, you have no more gas. It’s analogous to your fuel gauge on your vehicle.

[MCMIG85]

The gauge nearest the tank valve reads pressure of the inside the tank. You do need to pay action to it because as it approaches/reaches 0psi, you have no more gas. It’s analogous to your fuel gauge on your vehicle.

Thanks!