Thermometer in cryogenic design - Innovative design for low-temperature measurements
Applications
- Extremely-low temperature measurements
- Applications with liquid hydrogen (LH2)
- Cryogenic tanks
- Cryogenic pipelines
- Hydrogen liquefaction plants
Special features
- Innovative design with high accuracy
- Usable with all relevant thermometers
- Approved for applications in hazardous areas
Description
Due to the global use of hydrogen, extremely low-temperature measurement during transport and storage is gaining an ever-greater relevance. With the cryo design, WIKA provides a suitable option for all relevant temperature measuring instruments for this demanding application.
In laboratory trials, resistance thermometers (Pt1000) and thermocouples (type E) were tested for their suitability in cryogenic applications. The special design of the cryogenic thermometer features a high accuracy of ±3 Kelvin at -253 °C [-423 °F] as well as high reproducibility.
The test data from laboratory investigations served as the basis for calculating new polynomials for Pt1000 resistance thermometers in the range of -258 ... -200 °C [-432 ... -328 °F] which are used in the configuration of WIKA transmitters.
How long is the WIKA Build ID valid?
The WIKA Build ID is valid for at least three months.
What do the designations of Temperature Class mean?
The ignition temperature is the lowest temperature at which an inflammable mixture of gases can ignite at a flame, a hot surface or otherwise generated spark. Gases and vapours are divided into Classes in which the temperature of the surface must a ...
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What can I do if the medium temperature with filled-gauges is over 100 °C [212 °F]?
You can use a pressure gauge syphon, a diaphragm seal or a capillary line as an additional cooling element in order to lower the medium temperature.
