Venturi valve (MCalcVal - subsystem-specific extension)
The Multi-state Calculated Value (MCalcVal) object supports following properties of the subsystem-specific extension Venturi valve.
✳ Indicates a Siemens proprietary property.
Inactive air flow ✳ |
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"Inactive air flow" characterizes the air flow data sets of the inactive calibration data table. | ||
Inactive valve position ✳ |
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"Inactive valve position" characterizes the valve position data sets of the inactive calibration data table. | ||
Search attempts ✳ |
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"Search attempts" allows limiting the number of attempts for searching valve position corresponding to minimum air flow. | ||
Holding time ✳ |
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"Holding time" defines the time for air flow settling after valve position change. | ||
Measuring period ✳ |
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"Measuring period" defines the time for measuring the air flow. | ||
Number of valid calibration points ✳ |
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"Number of valid calibration points" indicates the number of valid pairs in the active table. | ||
Remaining calibration time ✳ |
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"Remaining calibration time" indicates the estimated calculated time left until the calibration process is expected to be completed. | ||
Calibration error ✳ |
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"Calibration error" indicates additional information for the valve in case of error. | ||
Air volume flow units (SI) ✳ |
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"Air volume flow units (SI)" defines the SI units used when displaying airflow values. This field is not active if US units are selected for the overall device (ActiveUnitSet). | |||
m3/h | cubic meters per hour | ||
l/s | liters per second | ||
Active air flow ✳ |
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"Active air flow" characterizes the air flow data sets of the active calibration data table. | ||
Active valve position ✳ |
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"Active valve position" characterizes the valve position data sets of the active calibration data table. | ||