Not all calibrations are the same. This is illustrated by the example of “Thermometer calibration” - which test method is used depends on various factors such as process conditions, quality standards and safety requirements. Depending on the method, the calibration …
Thermometer
Selection criteria for dial thermometers (3): Capillary
Christoph Strebel | Know-howBimetal or gas-actuated – the question of the suitable dial thermometer for the respective process can only be answered in a case without comparison: Only gas-actuated thermometers can be combined with a capillary. In In the reaction to a temperature …
Strap-on thermometer or screw-in thermometer? Temperature measurement of pipelines
Roland Sachs | Know-howTemperature 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 …
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 …