Potentiostat power problem

About 2 a in theory, but considering the protected metal structures of the influence of external anticorrosive coating strength and other factors, some may be higher than 2 a, considering the characteristics of the potentiostat, when the potentiostat are in a constant potential file (0.85 V ~ 1.2 V (CSE)), the output current will be within a certain band fluctuations, less volatile in normal circumstances, If there is a large fluctuation, it is necessary to consider checking the polarization power supply, auxiliary anode, the potential of the protected structure and the anticorrosive layer of the protected structure. It is necessary to ask whether a general range can be given. The main distribution must know the power of this instrument.

Please give me the protection area you need to protect and the type and grade of anticorrossed layer, and I will calculate it for you. I ask this question mainly for the electrical professional. Because someone else is wired to you, you have to tell him what the power of this instrument is. During normal operation