The 8502A Digital Multimeter is a 6 .5 digit instrument employing microprocessor control and a bus structure. Memory programming either from the front panel or through a remote interface permits a number of operations to be performed on the measured input before it is displayed. The standard configuration allows for measurement of dc volts in five ranges. Four ranges are available for ac volts when either optional ac converter is installed. Resistance can be measured in eight ranges. Current can be measured in five ranges.