ifc:IfcFlowInstrumentTypeEnum

<xs:simpleType name="IfcFlowInstrumentTypeEnum">
  <xs:restriction base="xs:string">
    <xs:enumeration value="pressuregauge"/>
    <xs:enumeration value="thermometer"/>
    <xs:enumeration value="ammeter"/>
    <xs:enumeration value="frequencymeter"/>
    <xs:enumeration value="powerfactormeter"/>
    <xs:enumeration value="phaseanglemeter"/>
    <xs:enumeration value="voltmeter_peak"/>
    <xs:enumeration value="voltmeter_rms"/>
    <xs:enumeration value="userdefined"/>
    <xs:enumeration value="notdefined"/>
  </xs:restriction>
</xs:simpleType>