Temperature is by far the most common measurand in the industry. However, there are no general solutions for temperature measurement. Even when designing measuring points on pipelines, many different factors for selecting thermometers must be taken into account. The …
Thermometer
Ex protection for dial thermometers: New standard = new marking
Jürgen Reiser | Know-howMechanical measuring instruments for use in explosive atmospheres can now be evaluated in accordance with a new standard: DIN EN ISO 80079-36/37 will replace EN 13463-1/5, with the transition period ending on 31 October 2019. For the first instruments, WIKA has …
Mineral-insulated cables – a core component for the construction of electrical thermometers
Jochen Gries | Know-howMineral-insulated cable, often also abbreviated to MI cable, consists of a metal sheath and ceramic-insulated internal conductors. The ceramic is a metal oxide powder (standard material is MgO) with a purity of > 99.0%, which ensures the insulation of the internal …
Selection criteria for dial thermometers (2): process temperature
Christoph Strebel | Know-howWhich dial thermometer is suitable for which process? Whether a bimetal or a gas-actuated thermometer is used depends on several factors - for example, on the process temperature. Bimetal thermometers are generally designed for scale ranges of -70 °C to +600 …
EAC approval for pressure gauges and thermometers: What must be considered?
Jürgen Reiser | Know-howWhoever exports measuring instruments or other technical goods to Russia and many of its neighbouring countries, has to go through the certification process of the “Eurasian Conformity” (EAC). An EAC approval is comparable with CE conformity. It is issued for each …