1. Importance of level measurement
Comparative tables of level measurement and detection methods can be found in the article
A comprehensive list of manufacturers and builders is given in the Find out more section.
Generally speaking, manufacturing processes do not require a high degree of accuracy when measuring levels. Exceptions are level (and capacity) measurements relating to operating balances, commercial transactions or taxed products.
Approved level gauges on large refinery tanks are manually recalibrated on a monthly basis.
Sometimes, the level represents an important system...
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Importance of level measurement
Liquid level definition
Bibliography
Websites
Online course on level measurement using radar technology :
https://academy-online.krohne.com/elearning/fr/cours/mesure-de-niveau-radar/
Engineer's Garage: level sensors :
...Standards and norms
- Radiation protection – Sealed radioactive sources – General requirements and classification - ISO 2919 - 2012
- Tanks for transporting hazardous materials – Tank service equipment – Fill limiters for liquid petroleum fuels - NF EN 13922 - 2011
The catalog of Iso and Afnor standards can be consulted online on the Afnor website: http://www.afnor.fr
...Regulations
Arrêté du 8 juillet 2003 relatif au contrôle métrologique des récipients-mesures. NOR: INDI0301736A
Decree no. 2002-460 of April 4, 2002 on the general protection of individuals against the dangers of ionizing radiation.
Decree no. 98-1186 of December 24, 1998 amending decree no. 86-1103 of October 2, 1986, as amended, on the protection of workers against the dangers of ionizing...
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
Table 1 lists the main manufacturers, classified by measuring system.
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