02-25-2009 06:03 AM
Hello,
I am having some problems configuring the Keithley 2420 to sweep a range of volts and measure the amps across a cell.
The attached vi checks the voltage polarity, then measures the short circuit current and then conducts a sweep.
The program executes but the sweep seems to measure resistance and not current.
Any help would be greatly appreciated!
Solved! Go to Solution.
02-26-2009 09:22 AM
Incase anyone reads this, the problem was with the Keithley 2400 drivers not switching off measurement concurrent mode when configuring the measurement type. Even though I set the measurement type to amps it was still measuring ohms.
I still don't know why it defaults to ohms.
Anyway, I solved this by using the :SENS:FUNC:CONC OFF command with the Instrument I/O assistant after using the relevant Keithley driver VI to set all the other parameters.