Oval Gear Meters for Viscous Media: Correctly Sizing Viscosity, Pressure Loss and Pulsation
Oval gear meters are particularly well suited for measuring and dosing the volumetric flow of...
Setting Personal Dosimeter Alarms Correctly: Distinguishing Between Dose, Dose Rate and Warning Thresholds
An electronic personal dosimeter can warn of two different hazards at the same time: an...
Bringing Modbus Sensors into IIoT: Clearly Document Register Mapping, Scaling and Units
Modbus sensors can be connected comparatively easily to a PLC, data logger or edge gateway....
Dimensioning a 24 V DC Power Supply: Correctly Calculating Inrush Currents, Reserve Capacity and Voltage Drop
In machines and control cabinets, a 24 V DC power supply often supplies PLCs, HMIs,...
Measuring Dissolved Oxygen: Correctly Considering Air Calibration, Zero Point and Flow Dependence
The concentration of dissolved oxygen is a key measured variable in wastewater treatment plants, aquaculture...
Guardbanding in Calibrations: Correctly Defining Tolerance, Measurement Uncertainty and Pass/Fail Decisions
A calibration result lies within the specified tolerance. Does this automatically mean that the measuring...
Using MINIMESS® Test Hoses Safely: Consider Pressure Rating, Ageing and Hose Whip
MINIMESS® test hoses enable rapid pressure measurements on hydraulic systems, mobile machinery and test benches....
Radar Level Measurement Interference Echoes: Eliminating Phantom Levels Caused by Nozzles and Internal Fittings
A radar level sensor can operate perfectly from an electrical perspective and still indicate an...
Operating a Piston Gauge Correctly: Avoiding Errors Caused by Piston Rotation, Contamination and Temperature
Piston gauges – also known as pressure balances or deadweight testers – are among the...
Pressure Measurement During Hydrogen Refuelling: Correctly Assessing Rapid Pressure Rises and Sensor Response Time
During hydrogen refuelling, the pressure does not rise slowly and uniformly to a static final...