Category Archives: Beitrag
Measuring water activity in oil: Correctly assessing moisture in hydraulic, lubricating and transformer oil
Water is one of the most important factors when assessing the condition of technical oils....
Recording analogue sensor signals with a data logger: Correctly using 4–20 mA, 0–10 V and scaling
Pressure transmitters, temperature transmitters, level sensors and flowmeters frequently provide their measured values as standard...
Checking power and harmonics with a clamp meter: When a simple current measurement is not enough
A clamp meter is part of the basic equipment used in maintenance, machine servicing and...
Temperature data loggers for high temperatures: What matters when using thermocouples up to 1000 °C
Temperature data loggers are used in furnace construction, heat treatment, metal and plastics processing as...
Pressure sensor for outdoor use: Correctly considering IP protection, cables, condensation and EMC
Pressure sensors are used outdoors, for example at pumping stations, water-treatment plants, mobile machinery, tanks,...
Multi-path ultrasonic measurement: When multiple measuring paths improve accuracy
Transit-time ultrasonic flowmeters determine the flow velocity along an acoustic measuring path through the pipe....
Gas detectors in hazardous areas: Correctly understanding ATEX, alarm functions and operating limitations
Gas detectors are used in chemical plants, refineries, tank farms, wastewater facilities, energy installations and...
Earth resistance measurement with an installation tester: Correctly understanding earth electrodes, probes and measuring methods
An effective earthing system is an essential part of protection against electric shock, overvoltages and...
Thermocouples in hazardous areas: Correctly designing the sensor, connection head and measuring chain
Thermocouples are frequently used in the chemical, petrochemical, power-generation and process industries at high temperatures...
Force sensor with mV/V, 4–20 mA or 0–10 V: Which output signal is suitable for the evaluation system?
Force sensors are used in test benches, presses, joining fixtures, machines and lifting equipment. The...