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I am using the 6221 via RS-232 and sending commands line by line. I do not get error messages from the 6221 back when sending commants copied from user/reference manual. The settings are not at all challenging. Let say 0.1 Hz, 10 mA, no phase marker, auto range mode, sin mode wave form.
The load are two regular antiparallel red LED I wanted to lid up smoothley alternating. What I see is pure rectangular mode with correct frequency but incorrect amps. With an ampmeter I measure +2.1 as well as -2.1 mA. The compliance voltage is reasonble at +1.7 volt as well as -1.7 volt. I am using the banana output at the bckside. Thanks a lot for your help. Duration is ok too. Let me put it together: amps and waveform are incorrect.
I found out that the banana jack is just supporting 2 mA max. (I was expecting that banana jack works like 2600-series.) With the regular triax-output is works fine.
--> Hardly you do it right, it works!
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