EngineeringUnits specifies the units for the DataItems value (e.g. DEGC, hertz, seconds). The 0:EUInformation type is specified in OPC 10000-8. If the DataType is a WeightItemType or a PrintableWeightItemType it is the unit of net, gross and tare.
EURange is specified like the EURange of the 0:AnalogItemType in OPC 10000-8. If the DataType is a WeightItemType or a PrintableWeightItemType it is the range of net, gross and tare.
InstrumentRange is specified like the EURange of the 0:AnalogItemType in OPC 10000-8.