The 6010 Resistance Bridge is used in most cases to determine the value of an unknown resistor Rx from the ratio Rx/Rs (or Rs/Rx) where Rs is a reference resistor with a known value and uncertainty. The program (software) has a resistor menu where the values and uncertainties of up to 40 resistors can be entered by the user and stored by the program.The number 40 corresponds to the number of the available channels of 2 scanners that can be connected to the bridge and chosen automatically by the running program in any possible way to use one resistor as Rx and any other one as Rs. If required, the running measurement program can update the resistor menu by changing the value and uncertainty of the actual Rx in accordance to measurement results.