exported
equivalent
pressure indicating transmitter
IRI:
http://www.inf.ufrgs.br/ontologies/copi#Pressureindicatingtransmitter
Generated on 2026-04-13
Natural Language Definition
EN
A pressure indicating transmitter is a transmitter that measures pressure and provides both local visual indication and electrical signal transmission of the pressure value.
PT-BR
Um transmissor indicador de pressão é um transmissor que mede pressão e fornece tanto indicação visual local quanto transmissão de sinal elétrico do valor da pressão.
Formal Axioms
Semi-formal (Aristotelian)
Every pressure indicating transmitter is a transmitter that bears a pressure indicating and transmission function, has pressure signal as input, and has both electrical signal output and local pressure display.
First-Order Logic Theory
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▸ Stored override
∀x (PressureIndicatingTransmitter(x) ↔ Transmitter(x) ∧ ∃f(PressureIndicatingAndTransmissionFunction(f) ∧ bearerOf(x,f)) ∧ ∃i(PressureMeasurementResult(i) ∧ hasInput(x,i)) ∧ ∃o1(InformationContentEntity(o1) ∧ hasOutput(x,o1)) ∧ ∃o2(PressureMeasurementResult(o2) ∧ hasOutput(x,o2)))
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: PressureIndicatingTransmitter
<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_0000606 rdf:type owl:Class ; # PressureIndicatingAndTransmissionFunction
rdfs:subClassOf iof-core:DesignedFunction ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:allValuesFrom :COPI_0000607 # PressureIndicatingAndTransmissionProcess
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty bfo:BFO_0000054 ; # realizedIn
owl:someValuesFrom :COPI_0000607 # PressureIndicatingAndTransmissionProcess
] ;
rdfs:label "pressure indicating and transmission function"@en ;
rdfs:label "função de indicação e transmissão de pressão"@pt-br .
### Process type
:COPI_0000607 rdf:type owl:Class ; # PressureIndicatingAndTransmissionProcess
rdfs:subClassOf iof-core:MeasurementProcess ;
rdfs:label "pressure indicating and transmission process"@en ;
rdfs:label "processo de indicação e transmissão de pressão"@pt-br .
iof-core:MeasurementProcess rdf:type owl:Class .
:COPI_0000607 # PressureIndicatingAndTransmissionProcess
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasInput ;
owl:someValuesFrom :COPI_0000048 # PressureMeasurementResult
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom iof-core:InformationContentEntity
] ;
rdfs:subClassOf [
rdf:type owl:Restriction ;
owl:onProperty iof-core:hasSpecifiedOutput ;
owl:someValuesFrom :COPI_0000048 # PressureMeasurementResult
] .
### Equipment universal: PressureIndicatingTransmitter
:COPI_0000334 rdf:type owl:Class ; # PressureIndicatingTransmitter
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_0000606 # PressureIndicatingAndTransmissionFunction
]
)
] ;
rdfs:label "pressure indicating transmitter"@en ;
rdfs:label "transmissor indicador de pressão"@pt-br ;
iof-av:naturalLanguageDefinition "A pressure indicating transmitter is a transmitter that measures pressure and provides both local visual indication and electrical signal transmission of the pressure value."@en ;
skos:definition "A pressure indicating transmitter is a transmitter that measures pressure and provides both local visual indication and electrical signal transmission of the pressure value."@en ;
iof-av:naturalLanguageDefinition "Um transmissor indicador de pressão é um transmissor que mede pressão e fornece tanto indicação visual local quanto transmissão de sinal elétrico do valor da pressão."@pt-br ;
iof-av:semiFormalNaturalLanguageAxiom "Every pressure indicating transmitter is a transmitter that bears a pressure indicating and transmission function, has pressure signal as input, and has both electrical signal output and local pressure display."@en ;
iof-av:firstOrderLogicAxiom "∀x (PressureIndicatingTransmitter(x) ↔ Transmitter(x) ∧ ∃f(PressureIndicatingAndTransmissionFunction(f) ∧ bearerOf(x,f)) ∧ ∃i(PressureMeasurementResult(i) ∧ hasInput(x,i)) ∧ ∃o1(InformationContentEntity(o1) ∧ hasOutput(x,o1)) ∧ ∃o2(PressureMeasurementResult(o2) ∧ hasOutput(x,o2)))"@en ;
skos:definition "[ISA 5.1] ISA 5.1 tag abbreviation 'PIT'. First letter 'P': Pressure. Succeeding letters: 'I' = Indicate, 'T' = Transmit."@en .
# Disjointness: PressureIndicatingTransmitter and TemperatureTransmitter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000334 :COPI_0000155 ) . # PressureIndicatingTransmitter, TemperatureTransmitter
# Disjointness: PressureIndicatingTransmitter and FlowTransmitter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000334 :COPI_0000118 ) . # PressureIndicatingTransmitter, FlowTransmitter
# Disjointness: PressureIndicatingTransmitter and LevelTransmitter
[] rdf:type owl:AllDisjointClasses ;
owl:members ( :COPI_0000334 :COPI_0000131 ) . # PressureIndicatingTransmitter, LevelTransmitter
Axiomatization Decision Log
1
Identity-Giving Function
Function class
PressureIndicatingAndTransmissionFunction
⊑ DesignedFunction
Realized in
PressureIndicatingAndTransmissionProcess
⊑ MeasurementProcess
This device has dual identity-giving functions: pressure indication (local display) and pressure transmission (signal output). This distinguishes it from pure pressure transmitters that only transmit or pure pressure indicators that only display locally.
2
Genus Determination
Transmitter
The ISA tag structure places this as a specialized type of transmitter ('T' suffix). The already-enriched 'transmitter' class with SignalTransmissionFunction is the appropriate genus, as this device extends basic transmission capability with local indication.
3
Necessary Parts
No necessary parts recorded (concept may be primitive at this level).
All parts are necessary for the dual function of pressure measurement, local indication, and signal transmission.
4
Process Participation Signature ⟨I, O, T⟩
Inputs (I)
PressureMeasurementResult
— physical pressure from process
Outputs (O)
InformationContentEntity
— proportional to input pressure
PressureMeasurementResult
— visual indication of pressure value
Transformation (T)
pressure transduction to electrical signal plus local visual indication
Single pressure input is converted to both electrical output signal and local visual display, enabling both remote monitoring and local observation.
5
Axiom Mode Decision
Necessary + Sufficient
— modelled as a defined class
(≡, EquivalentClass). Automatic classification is
appropriate for this concept.
Disjointness Axioms
temperature transmitter
flow transmitter
level transmitter
C2: temperature transmitter, flow transmitter, level transmitter. Different measured variables (pressure vs temperature vs flow vs level) represent incompatible process signatures - a single device cannot simultaneously measure fundamentally different physical quantities.
Cross-Standard Observations
Only ISA 5.1 definition available. The tag abbreviation clearly indicates dual function (I+T), but more detailed technical specifications from other standards would be valuable for completeness.