Keysight E36731A Manuel D'instructions page 32

CR mode
In this mode, the load unit will sink current proportional to the input voltage in accordance with the programmed
resistance.
The heavy solid line illustrates the locus of possible operating points as a function of the resistance. Resistance may
be programmed in one of three overlapping ranges - a Low, Medium, and a High resistance range. The lower ranges
provide better programming and measurement resolution at lower resistance settings. The load unit automatically
selects the resistance range that best corresponds to the resistance value that you program. If the resistance value
falls in a region where ranges overlap, the load selects the range with the highest resolution for the resistance value.
32 Keysight E36731A User's Guide