Do you have any suggestions? I have purchased a 15 gallon nickel, flash and acid copper kit along with a HY3020E power supply from Caswell. All of the solutions were mixed according to the labels. Hooked up the power supply to the acid copper tank in the constant current mode turned on the power and the read out goes to all zero's. There is no adjustability, the pH in the acid copper tank is 0.9 - 1.0 the power supply I feel detects a short. I tried to plate a piece in the nickel tank and everything worked fine (pH 4.0) the current in constant current mode was adjustable, set to 1.5 amps. and the voltage ended up at 2.5 volts. Again my problem is that the power supply does not allow me to "set" the current. Any idea as to what is happening? I have checked all the connections.