Nicholas Semmens

I've checked and trust the current measured is quite accurate. I can easily use software processing to adjust the offset by changing my applied voltage parameters, it is slightly annoying but usable. Any chance I could be pointed towards what might need repair within the unit?

Booting up as you mentioned, no flashing digits on the panel. Connecting directly to voltmeter I am reading 0.734V. Offset is certainly constant. I have left the machine on for over 24hours to see the final value that it drifts to and it appears to be the value I mentioned. For what its worth, if I measure the voltage on the Keithley simultaneously, it reads 7mV with Vsrc at 0V and external voltmeter at ~0.73V.

I am using a Keithley 2400 to perform I-V curve measurements and I have come across an apparent voltage offset that is causing the voltage source setting of 0V (on the screen) is actually sourcing around 0.7V. I am working on generating a curve to account for this offset but I was wondering if there was a way to remedy this without needing to send the unit in/pay a bunch of money. I am allowing it to sit on for a long period of time as it does drift. Using an external multimeter to measure the actual voltage being applied to a resistor.