tender for purchase and installation of u-v source meter , i-v measurement unit with software and computer , both i-v source meter and i-v software should be compatible with existing enlitech ssx50 class a+ solar simulator branded source meter for iv measurement •precision source/measure unit, 1ch, 10fa resolution, 210v, 1.5a •integrated 4-quadrant sourcing and measuring capabilities •source and measurement resolution down to 10 fa and 100 nv •user-friendly front panel gui with 4.3 inch color lcd display supports both graphical and numerical view modes •10 microsecond digitizing capability •pc-based control software •supports both conventional and default scpi commands •small form factor with usb2.0, lan, gpib and digital installation of interfaces iv measurements software with pc solar cell measuring & analysis software suitable with enlitech ssx50 class a+ solar simulator should be capable to measure all kind of solar cells. software should measure below measurements: measurements: isc, voc, jsc, jmax, pmax, vmax, imax, ?, ff, rs, rsh, automatic iv measurement under steady-state conditions. (the best solution for measuring perovskite solar cells), iv curve overlay display., forward scan/ reverse scan/ automatic forward and reverse scanning measurement, automatic polarity reversal test., 2 segment iv measurement., quick note., semi-log display., jsc display., voltage and current monitoring measurement., iv configuration recipe., light soaking & mppt measurement., multi-channel automatic measurement. (integrated function), light-intensity-dependent measurement. (integrated function), real-time correction function according to iec., nrel asymptotic measurement., backup measurement data automatically., file export format: csv/txt file., latest i5 desktop computer with windows os., product and service warranty 3 years