The IPhCalibrationType provides the interface to pH measurement specific calibration variables of the sensor resp. signal and is formally defined in Table 23.
Table 23 – IPhCalibrationType definition
|
Attribute |
Value |
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|
BrowseName |
IPhCalibrationType |
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|
IsAbstract |
True |
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|
References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Other |
|
Subtype of 0:BaseInterfaceType defined in OPC 10000-5, i.e. inheriting the InstanceDeclarations of that Node |
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|
0:HasComponent |
Variable |
SensorSlope |
0:Float |
0:AnalogUnitType |
O |
|
0:HasComponent |
Variable |
SensorAsymmetryPotential |
0:Float |
0:AnalogUnitType |
O |
|
0:HasProperty |
Variable |
SensorT90 |
0:Float |
0:PropertyType |
O |
|
Conformance Units |
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|
PA-DIM PhSignalType |
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|
PA-DIM IPhCalibration SensorT90 |
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SensorSlope is defined by IRDI as ABP567#001 which states “slope of a pH sensing element characteristic, expressed as the voltage change of the pH sensor per pH value, determined by the last calibration”.
SensorAsymmetryPotential is defined by IRDI as ABP568#001 which states “asymmetry potential of a pH sensing element characteristic determined by the last calibration”.
SensorT90is defined by IRDI as ABP569#001 which states “t90 settling time determined by the last calibration”.
The components of IPhCalibrationType have additional references which are defined in Table 24.
Table 24 – IPhCalibrationType additional References
|
SourceBrowsePath |
Reference Type |
Is Forward |
TargetBrowsePath |
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|
SensorSlope |
0:HasDictionaryEntry |
True |
3:0112/2///61987#ABP567#001 |
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|
0:HasDictionaryEntry |
True |
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|
SensorAsymmetryPotential |
0:HasDictionaryEntry |
True |
3:0112/2///61987#ABP568#001 |
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|
0:HasDictionaryEntry |
True |
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|
SensorT90 |
0:HasDictionaryEntry |
True |
3:0112/2///61987#ABP569#001 |
The child Nodes of the IPhCalibrationType have additional Attribute values defined in Table 25.
Table 25 – IPhCalibrationType Attribute values for child Nodes
|
BrowsePath |
Value Attribute |
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|
SensorSlope |
0.0 |
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NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefactUnitId: 12890DisplayName: mVDescription: millivolt |
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|
SensorAsymmetryPotential |
0.0 |
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NamespaceUri: http://www.opcfoundation.org/UA/units/un/cefactUnitId: 12890DisplayName: mVDescription: millivolt |
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|
SensorT90 |
0.0 |