Fundamental power couplers are crucial com-ponents for feeding radio frequency power to accelerating cavities. Couplers must be tested and conditioned on a room-temperature test stand to evaluate and potentially improve their performance before being installed in an accelerating cavity. A new test system has been designed and is under construction at the institute of mode physics. For this test system, multiple conditioning modes, includ-ing the pulse mode, CW mode, and amplitude-sweeping mode, have been embedded in the low-level radio fre-quency system of the test stand. All of these conditioning modes can be run manually or automatically. In addition, a novel test cavity is proposed and has been designed, which facilitates non-contact conditioning and a multi-purpose test stand.