The extension of a flanged diaphragm seal system using a flushing ring brings significant advantages. Among other things, it enables easy cleaning and, in addition, on-site calibration of the measuring location. Diaphragm seal systems are used in processes with …
Accuracy
High-accuracy moisture measurement in SF6 switchgear
| Andre Dahlheimer | ProductsMoisture measurement in SF 6 -insulated switchgear is essential. That's why WIKA has improved the performance of the GDHT-20 sensor for this industry. The transmitter, which also provides values for gas density, pressure and temperature, now measures the dew/frost …
Why the calibration of (force) measuring instruments is important
| Markus Heidl | Calibration, ProductsEveryone involved in measurement technology knows the somewhat flippant – but very catchy – statement: “If you measure a lot, you measure nothing!” What is meant by this is: You can measure a lot. But the values are only useful if you can validate them. In …
Reed level sensor: Defining the measuring range flexibly
| Oleg Greber | Know-howA float-based level sensor with a reed chain is a widely used and comparatively economical solution for continuous level measurement in vessels. Users can define its measuring range flexibly within a given range. This article describes what needs to be taken into …
Temperature calibration: Thermocouples vs. resistance thermometers
| Katja Strecke | Know-howIn temperature calibration, high demands are placed on reference thermometers in terms of accuracy and reproducibility and thus long-term stability. Therefore, RTDs (“resistance temperature detectors”) – here specifically platinum resistance thermometers – and …