Author Archives: Lukas Achtelik
Ceramic, piezoresistive or thin-film pressure sensors: Which technology fits?
A pressure sensor is not just a pressure sensor. Even if two devices look similar...
Calibrating a digital pressure gauge or just checking it? What users should know
Digital pressure gauges are frequently used as reference or control instruments in industry, maintenance, service,...
Measuring loop impedance: How to check whether protective devices disconnect safely
If a fault occurs between a phase conductor and the protective conductor in an electrical...
Measuring inrush current: Why fuses trip during start-up
If a fuse or miniature circuit breaker trips exactly when a machine, motor, compressor or...
Avoiding moisture damage in storage areas: Where sensors should really measure
Moisture damage in storage areas rarely occurs evenly throughout the entire warehouse. It often first...
Operating current transformers safely: Why the secondary circuit must never be open
Current transformers are used in electrical installations to convert high currents into a smaller, measurable...
Motor running in the wrong direction: Correctly checking phase rotation with a voltage tester
If a three-phase motor suddenly runs in the wrong direction after installation, the cause is...
Heat and energy measurement with ultrasound: Correctly recording flow, temperature and energy
If you want to reliably record heat or cooling energy, you have to measure more...
Digital multimeters for hazardous areas: When an intrinsically safe multimeter is required
In hazardous areas, electrical measurements must not be carried out with just any measuring instrument....
4–20 mA, 0–10 V or HART: Which output signal makes sense for a pressure transmitter?
When selecting a pressure transmitter, it is not only the measuring range, accuracy, process connection...