9. Multifunction testers
9.1 Purpose of multifunction testers
These devices are designed to provide a qualitative, on/off indication of the essential characteristics of the electrical quantities to be known when operating or maintaining electrical installations, in particular :
polarity of DC voltages or diodes ;
presence and order of magnitude of alternating voltages ;
order of phases in a three-phase network ;
insulation quality ;
continuity of ground connections.
They are indicated by light and/or sound, notably when predetermined voltage or resistance thresholds are crossed or not....
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Multifunction testers
Bibliography
References
Standardization
French standards (NF) AFNOR (Association française de normalisation)
- Installations électriques à basse tension. - NF C 15-100 - déc. 2002
- Travaux sous tension. Détecteurs de tension. Partie 5 : systèmes détecteurs de tension (VDS). Indice de classement C 18-310. - NF EN 61243-5 - juin 2002
- Degrés de protection...
Manufacturers
Chauvin-Arnoux http://www.chauvin-arnoux.com
French instrumentation http://www.distrame.fr
LEM (Experts in Measuring Electricity) http://www.lem.com
...
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