Category Archives: Beitrag
Cos φ and True Power Factor: Correctly Evaluate Power Factor with Variable Frequency Drives
A variable frequency drive may, for example, show a cos φ of 0.98 on the...
Connect a Pressure Gauge Radially or Axially: Choose the Right Installation Position
A pressure gauge with a measuring range of 0 … 10 bar can be perfectly...
Connect a Temperature Switch to a PLC: Understanding PNP and Switching Logic
An electronic temperature switch may, for example, correctly show 72 °C on its display while...
Convert Level to Liters: Correctly Linearize a Horizontal Cylindrical Tank
A fill level of 50 % in a horizontal cylindrical tank actually corresponds to 50...
Laboratory Power Supply in CV/CC Operation: Understanding Current Limiting and the Transition Between Constant Voltage and Constant Current
The laboratory power supply is set to 24 V with a current limit of 1.0...
Testing PRCD-S and Portable Personal Protection Switches: Correctly Testing Protective Conductor Monitoring and Tripping Function
A portable personal protection switch can be switched on. The status indicator shows: Ready for...
Überfüllsicherung im Tank: Grenzschalter unabhängig von der kontinuierlichen Füllstandmessung planen
Ein Tank besitzt bereits eine kontinuierliche Füllstandmessung. Der Messumformer liefert: 4 … 20 mA an...
OPC UA or MQTT for Measurement Data: Comparing Data Models, Communication Direction and IT/OT Integration
A pressure sensor provides: 6.42 bar A temperature sensor reports: 78.3 °C and a vibration...
Voltage Drop in DC Laboratory Power Supplies: Correctly Size Cable Cross-Section, Load Current and Voltage Regulation
The laboratory power supply is set to: 24,0 V DC. The connected device under test...
Selecting a Battery Backup Charger for 24 V Systems: Battery Type, Charging Characteristic and Temperature Compensation
A 24 V control system needs to continue operating for another hour in the event...