Hi,
on Keithley's website is explained :
"The Model 263 offers a more economical, more precise alternative to the Model 6430 or the Model 236 when used as a low-current source. It is used almost exclusively as a current calibrator."
This leads to Model 236.... A LabVIEW-driver is available @: http://search.ni.com/query.html?lk=1&col=alldocs&nh=500&rf=3&ql=&pw=595&qp=%2BContentType%3AInstrumentDriver+%2BIDNetManufacturer%3A%22Keithley%22&qt=&layout=IDNet
Maybe you have to "reconstruct" some parts - but it will help.
regards
wha
