We purchased a U3606A for use in a test setup. The data taken contained spurious signals, which was tracked down to be coming from the U3606A. A cross-check confirmed that our E3646A is not emitting anything like this, and the E3620As we have are some of the quietest supplies we have.
I've included a scope trace taken at the force output on the front panel, unloaded. A lot of this is also on the measurement input. Is this normal, or is the unit defective?
If you need technical support for your highlighted U3606A unit issue below, please contact your nearest Agilent Service Center or submit your technical support request via Agilent Technical Support link below. I hope this is help.