Core Ontology for Petroleum Installations · INF-UFRGS-Ontologies · CNPq INF-UFRGS-ENERGIA inf.ufrgs.br/ontologies/copi dee69df
ISA 5.1 symbol for temperature transmitter
exported equivalent
temperature transmitter
IRI: http://www.inf.ufrgs.br/ontologies/copi#Temperaturetransmitter
Generated on 2026-04-13
Natural Language Definition
EN
A temperature transmitter is a transmitter that measures temperature and produces a standardized output signal dependent on the received input signal from a temperature element.
PT-BR
Um transmissor de temperatura é um transmissor que mede temperatura e produz um sinal de saída padronizado dependente do sinal de entrada recebido de um elemento de temperatura.
Formal Axioms
Semi-formal (Aristotelian)
Every temperature transmitter is a transmitter that has the function to measure temperature and transmit standardized signals based on temperature input.
First-Order Logic Theory
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▸ Stored override ∀x(TemperatureTransmitter(x) ↔ Transmitter(x) ∧ ∃f(TemperatureMeasurementAndTransmissionFunction(f) ∧ bearerOf(x,f)))
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix : <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . @prefix bfo: <http://purl.obolibrary.org/obo/> . @prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> . @prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> . @prefix skos: <http://www.w3.org/2004/02/skos/core#> . @prefix qudt: <http://qudt.org/schema/qudt/> . @prefix dcterms: <http://purl.org/dc/terms/> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix apv: <http://inf.ufrgs.br/ontologies/apv#> . ### COPI — Core Ontology for Petroleum Installations ### Class module: TemperatureTransmitter <https://www.inf.ufrgs.br/ontologies/copi> rdf:type owl:Ontology ; dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ; dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ; dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ; skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ; skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ; skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ; skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ; owl:versionInfo "1.1.0" ; owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ; owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ; dcterms:creator "Nicolau Oyhenard dos Santos"@en ; dcterms:contributor "Cauã Antunes" ; dcterms:contributor "Haroldo Rojas" ; dcterms:contributor "Rafael Petry" ; dcterms:contributor "Régis Romeu" ; dcterms:contributor "Mara Abel" ; dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ; dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ; dcterms:license <https://creativecommons.org/licenses/by/4.0/> ; dcterms:created "2026-04-08"^^xsd:date ; dcterms:modified "2026-10-08"^^xsd:date ; apv:GlobalMinLanguageCoverage "en pt-br" ; apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ; apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" . iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ; apv:MinAnnotationLength 20 . ### Identity-giving function :COPI_0000188 rdf:type owl:Class ; # TemperatureMeasurementAndTransmissionFunction rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :COPI_0000663 # TemperatureMeasurementAndTransmissionProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :COPI_0000663 # TemperatureMeasurementAndTransmissionProcess ] ; rdfs:label "temperature measurement and transmission function"@en ; rdfs:label "função de medição e transmissão de temperatura"@pt-br . ### Process type :COPI_0000663 rdf:type owl:Class ; # TemperatureMeasurementAndTransmissionProcess rdfs:subClassOf iof-core:MeasurementProcess ; rdfs:label "temperature measurement and transmission process"@en ; rdfs:label "processo de medição e transmissão de temperatura"@pt-br . iof-core:MeasurementProcess rdf:type owl:Class . :COPI_0000663 # TemperatureMeasurementAndTransmissionProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :COPI_0000047 # TemperatureMeasurementResult ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom iof-core:InformationContentEntity ] . ### Equipment universal: TemperatureTransmitter :COPI_0000155 rdf:type owl:Class ; # TemperatureTransmitter owl:equivalentClass [ rdf:type owl:Class ; owl:intersectionOf ( :COPI_0000157 # Transmitter [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :COPI_0000188 # TemperatureMeasurementAndTransmissionFunction ] ) ] ; rdfs:label "temperature transmitter"@en ; rdfs:label "transmissor de temperatura"@pt-br ; iof-av:naturalLanguageDefinition "A temperature transmitter is a transmitter that measures temperature and produces a standardized output signal dependent on the received input signal from a temperature element."@en ; skos:definition "A temperature transmitter is a transmitter that measures temperature and produces a standardized output signal dependent on the received input signal from a temperature element."@en ; iof-av:naturalLanguageDefinition "Um transmissor de temperatura é um transmissor que mede temperatura e produz um sinal de saída padronizado dependente do sinal de entrada recebido de um elemento de temperatura."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every temperature transmitter is a transmitter that has the function to measure temperature and transmit standardized signals based on temperature input."@en ; iof-av:firstOrderLogicAxiom "∀x(TemperatureTransmitter(x) ↔ Transmitter(x) ∧ ∃f(TemperatureMeasurementAndTransmissionFunction(f) ∧ bearerOf(x,f)))"@en ; skos:definition "[ISO 15926-4] A <TEMPERATURE TRANSMITTER>is a <PROCESS VARIABLE TRANSMITTER> and a <TEMPERATURE MEASURING INSTRUMENT>"@en ; skos:definition "[CFIHOS] A transmitter that is producing a standardized output signal dependent of a received input signal from a temperature element."@en ; skos:definition "[ISA 5.1] ISA 5.1 tag abbreviation 'TT'. First letter 'T': Temperature. Succeeding letters: 'T' = Transmit."@en ; skos:definition "[POSC Caesar] A 'transmitter' that is producing a standardized output signal dependent of a received input signal from a 'temperature element'."@en . # Disjointness: TemperatureTransmitter and PressureTransmitter [] rdf:type owl:AllDisjointClasses ; owl:members ( :COPI_0000155 :COPI_0000144 ) . # TemperatureTransmitter, PressureTransmitter # Disjointness: TemperatureTransmitter and FlowTransmitter [] rdf:type owl:AllDisjointClasses ; owl:members ( :COPI_0000155 :COPI_0000118 ) . # TemperatureTransmitter, FlowTransmitter # Disjointness: TemperatureTransmitter and LevelTransmitter [] rdf:type owl:AllDisjointClasses ; owl:members ( :COPI_0000155 :COPI_0000131 ) . # TemperatureTransmitter, LevelTransmitter
Axiomatization Decision Log
1 Identity-Giving Function
Function class
TemperatureMeasurementAndTransmissionFunction ⊑ DesignedFunction
Realized in
TemperatureMeasurementAndTransmissionProcess ⊑ MeasurementProcess
The identity-giving function combines temperature measurement with signal transmission. While SignalTransmissionFunction already exists in the ontology for generic transmitters, temperature transmitters have a more specific function that includes the temperature sensing capability - they don't just transmit arbitrary signals but specifically measure and transmit temperature data.
✓
Expert review — Accepted
2 Genus Determination
Transmitter
The parent_candidates include 'transmitter' which is already enriched in our ontology with function SignalTransmissionFunction. ISO 15926 shows temperature transmitter as both a PROCESS VARIABLE TRANSMITTER and TEMPERATURE MEASURING INSTRUMENT, but 'transmitter' is the most specific appropriate superclass that exists in our system. Temperature transmitters inherit signal transmission capability and add temperature measurement specificity.
✓
Expert review — Accepted
3 Necessary Parts

No necessary parts recorded (concept may be primitive at this level).

All temperature transmitters require these core components: a temperature sensor to measure temperature and signal conversion electronics to produce the standardized output signal. These are universal requirements regardless of specific temperature sensing technology used.
✓
Expert review — Accepted
4 Process Participation Signature ⟨I, O, T⟩
Inputs (I)
TemperatureMeasurementResult — from temperature element
Outputs (O)
InformationContentEntity — 4-20mA, digital, or other standard format
Transformation (T)
temperature measurement converted to standardized signal
Temperature transmitters receive temperature input signals from temperature elements (thermocouples, RTDs, etc.) and output standardized signals for process control systems. This signature distinguishes them from other transmitter types.
✓
Expert review — Accepted
5 Axiom Mode Decision

Necessary + Sufficient — modelled as a defined class (≡, EquivalentClass). Automatic classification is appropriate for this concept.

✓
Expert review — Accepted
Disjointness Axioms
PressureTransmitter FlowTransmitter LevelTransmitter
C2: PressureTransmitter, FlowTransmitter, LevelTransmitter. These transmitter types have incompatible process signatures - each measures a different process variable and cannot simultaneously be temperature transmitters
Cross-Standard Observations
All sources consistently define temperature transmitters as devices that convert temperature measurements to standardized signals. ISO 15926 provides the most structured classification showing dual inheritance from both transmitters and temperature measuring instruments. CFIHOS and POSC Caesar emphasize the signal conversion aspect.

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