To import units into the Units table, cBaseUnit is required. This field accommodates units without a prefix, like volts (V) or ampere (A). To import units that do have a prefix, like µA, the cPrefix field should be included in the Import Definition. To reference a unit when importing calibration data, prefix and base unit must be specified in one column, separated by a double-colon (::). For example, to import UUT measurements into the Points table, the number of the measurement goes into the nUUT column, the unit into nUUTUnitUID.