Aiming at the power consumption variances. It is aiming when the pressure rises, the power consumption will increase.
The oilless air compressor being used now is UN-180P, then we use pressure gauge to indicate the increased pressure which goes through valve control to achieve this physical phenomenon.
The Initial pressure as you can see is under no load. Power consumption is 2.2 Ampere, 450W. We gradually increased the pressure. As you can see clearly when the pressure is higher, the power consumption and ampere will rise accordingly. This proves the theory when the pressure is higher, the power consumption and current will increase accordingly. The above is what we aim at when the pump pressure rises the power consumption and current will increase, either.