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9. Functionality – Measured values
9.3 Measured values
The DEHNrecord SD records power quality data for both continuous measured variables and event-related measured variables.
It also provides energy and performance data as well as the current status of the digital inputs and outputs.
The following list provides an overview of the measured variables.
A detailed list with names and descriptions of the individual measured variables can be found in the Modbus manual
Power Quality:
• Voltage magnitude
• Frequency
• Flicker
• Voltage unbalance
• Voltage harmonics
• Voltage interharmonics
• Mains signalling voltages
• Voltage dip/swell/interruption
• Rapid voltage changes
Power frequency overvoltages:
• Events according to EN 50550
• Individual setting: e.g. undervoltage
Energy:
• Voltage
• Current
• Active power
• Apparent power
• Reactive power
• Active power
• Power factor
Digital IO:
• Digital inputs
• Digital outputs
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