IFC 4.3.0.1 (IFC4X3) development

7.2.4.29 Pset_SensorTypeGasSensor

7.2.4.29.1 Semantic definition

A device that senses or detects gas. HISTORY: Changed in IFC4. Gas detected made into enumeration, set point concentration and coverage area added. Range, accuracy and time constant deleted.

7.2.4.29.2 Applicable entities

7.2.4.29.3 Properties

Name Property Type Data Type Description
GasDetected IfcPropertySingleValue IfcLabel

Identification of the gas that is being detected, according to chemical formula. For example, carbon monoxide is 'CO', carbon dioxide is 'CO2', oxygen is 'O2'.

SetPointConcentration IfcPropertyBoundedValue IfcPositiveRatioMeasure

The concentration to be sensed. Use IfcPropertyBoundedValue.SetPointValue to set the set point value.

CoverageArea IfcPropertySingleValue IfcAreaMeasure

The area that is covered by the object.

Floor area (typically measured as a circle whose center is at the location of the sensor).

Table 7.2.4.29.A

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7.2.4.29.4 Changelog

  • applicability, IfcSensor/GASSENSOR
  • property, CoverageArea
  • property, SetPointConcentration
  • applicability, IfcSensorType
  • property, AccuracyOfGasSensor
  • property, GasSensorRange
  • property, GasSensorSetPoint
  • property, TimeConstant