Author Archives: Lukas Achtelik
Hydraulic Oil Sampling with MINIMESS: Detecting Oil Condition and Wear
The condition of the hydraulic oil directly affects the reliability of pumps, valves, cylinders and...
Hydrogen Temperature Measurement: Sensors for H₂ Compression and Cryogenic Applications
Temperature is a key process and safety variable in hydrogen systems. It influences gas density,...
Electromagnetic Flowmeter Output Signals: Selecting 4–20 mA, Pulse, Modbus and PROFINET Correctly
Electromagnetic flowmeters can provide considerably more information than the current volume flow alone. Depending on...
Selecting the Diaphragm Size of a Diaphragm Seal: Small Diaphragm, Measuring Range and Accuracy
For diaphragm seals, the smallest possible process connection is often requested. It requires little installation...
Selecting a Pressure Switch Output: PNP, NPN, Relay and PLC Connection
When selecting a pressure switch, attention is often focused first on the measuring range, process...
Measuring Current with a Multimeter: Using mA, µA, Fuses and Input Sockets Correctly
Operating errors occur particularly frequently when measuring current with a multimeter. Unlike a voltage measurement,...
Ultrasonic Flowmeters for Gas: Using Transit-Time Measurement Correctly
Ultrasonic flowmeters can measure gas flow without moving parts and, in the case of clamp-on...
Selecting an Ex Voltage Tester: Safely Carrying Out Voltage Tests in ATEX Areas
Electrical voltages must also be tested in potentially explosive atmospheres—for example, when troubleshooting pumps, valves,...
Using Coriolis Output Signals Correctly: Evaluating 4–20 mA, Pulse, Modbus and Diagnostic Values
A Coriolis flowmeter often provides considerably more information than a single flow value. In addition...
Gas Detector Sensor Life: When CO, H₂S and O₂ Sensors Must Be Replaced
A gas detector may appear fully functional externally even though the sensitivity of one of...