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  <xs:element id="itri_LineofCreditFacilityRemainingcapacitytosupportlettersofcredit" abstract="false" name="LineofCreditFacilityRemainingcapacitytosupportlettersofcredit" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="itri_OperatingLeaseRightOfUseAssetsAmortization" abstract="false" name="OperatingLeaseRightOfUseAssetsAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="itri_ComputersAndSoftwareGross" abstract="false" name="ComputersAndSoftwareGross" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="itri_BuildingsFurnitureAndImprovements" abstract="false" name="BuildingsFurnitureAndImprovements" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="itri_DeviceSolutionsMember" abstract="true" name="DeviceSolutionsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
  <xs:element id="itri_FiniteLivedIntangibleAssetsDisposedInSaleOfBusiness" abstract="false" name="FiniteLivedIntangibleAssetsDisposedInSaleOfBusiness" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="itri_DisposalGroupIncludingDiscontinuedOperationLegalFees" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationLegalFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="itri_AssetImpairmentAndNetGainLossOnSaleOrDisposalMember" abstract="true" name="AssetImpairmentAndNetGainLossOnSaleOrDisposalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
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  <xs:element id="itri_FiniteLivedIntangibleLiabilitiesForeignCurrencyTranslationGainLoss" abstract="false" name="FiniteLivedIntangibleLiabilitiesForeignCurrencyTranslationGainLoss" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="itri_DisposalGroupIncludingDiscontinuedPaymentsReceived" abstract="false" name="DisposalGroupIncludingDiscontinuedPaymentsReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
