{"id":50919,"date":"2020-07-07T07:25:44","date_gmt":"2020-07-07T07:25:44","guid":{"rendered":"https:\/\/\/capteur-de-tension-compact-a-monter-en-chassis\/"},"modified":"2020-07-07T07:25:44","modified_gmt":"2020-07-07T07:25:44","slug":"capteur-de-tension-compact-a-monter-en-chassis","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/capteur-de-tension-compact-a-monter-en-chassis\/","title":{"rendered":"Capteur de tension compact \u00e0 monter en ch\u00e2ssis"},"content":{"rendered":"

En plus d’\u00eatre tr\u00e8s robuste et compacte, la s\u00e9rie DVC 1000 pr\u00e9sente aussi une excellente pr\u00e9cision et une tr\u00e8s bonne stabilit\u00e9 en temp\u00e9rature. Un adaptateur en option permet le montage sur un rail DIN pour faciliter leur int\u00e9gration au sein d\u2019applications sp\u00e9cifiques.<\/p>\n

LEM a d\u00e9velopp\u00e9 le DVC 1000 en conformit\u00e9 avec les normes internationales de l’industrie ferroviaire (IRIS). Les ing\u00e9nieurs de l’industrie ferroviaire travaillant avec le mat\u00e9riel roulant et les sous-stations peuvent utiliser ces nouveaux capteurs polyvalents pour mesurer lestensions des DC links, les tensions de sortie d\u2019onduleurs, la tension d’entr\u00e9e des convertisseurs 4 quadrants, ou la tension de batteries des v\u00e9hicules ferroviaires l\u00e9gers. Les caract\u00e9ristiques des capteurs de tension DVC 1000 en font des candidats id\u00e9aux pour un large \u00e9ventail de mesures de tensions faibles \u00e0 moyennes dans l\u2019industrie, par exemple pour la surveillance d\u2019alimentations \u00e0 courant continu, de chargeurs de VE (v\u00e9hicule \u00e9lectrique) ou de syst\u00e8mes de stockage (batteries).<\/p>\n

Les capteurs DVC 1000 mesurent des tensions via une connexion directe sur le c\u00f4t\u00e9 primaire, \u00e0 travers un r\u00e9seau interne compos\u00e9 de r\u00e9sistances et de quelques composants, permettant au signal d\u2019alimenter un amplificateur d\u2019isolation. Le signal isol\u00e9 est r\u00e9cup\u00e9r\u00e9 puis conditionn\u00e9 afin de fournir une tension ou un courant aux connexions de sortie du capteur, qui est l\u2019exacte repr\u00e9sentation de la tension primaire. Aucun composant suppl\u00e9mentaire n\u2019est n\u00e9cessaire pour l\u2019utiliser, il suffit de le connecter \u00e0 la tension \u00e0 mesurer.<\/p>\n

La famille DVC 1000 peut fournir une sortie instantan\u00e9e soit en courant +\/- 30 mA (DVC 1000) soit en tension +\/- 10 V \u00e0 +\/- 1500 V cr\u00eate (DVC 1000-B). Le mod\u00e8le DVC 1000-UI fournit une sortie courant unipolaire instantan\u00e9e 4 \u00e0 20 mA \u00e0 0…+1000 V DC (mesure de tension DC unipolaire uniquement). Tous les mod\u00e8les offrent une excellente pr\u00e9cision globale, de +\/- 1% \u00e0 +25\u00b0C avec une grande stabilit\u00e9 en temp\u00e9rature, permettantune pr\u00e9cision globale de +\/- 1,7% sur la plage de temp\u00e9rature op\u00e9rationnelle de -40\u00b0C \u00e0 +85\u00b0C.<\/p>\n

La bande passante (-3 dB) de mesure est de 35 kHz et les DVC 1000 ne consomment que 12 \u00e0 22 mA en l\u2019absence de tension au primaire, selon le mod\u00e8le et l’alimentation utilis\u00e9e: alimentation +\/- 15 V \u00e0 +\/- 24 V pour les DVC 1000 et DVC 1000-B, ou alimentation unipolaire +15 V \u00e0 +24 V pour le DVC 1000-UI.<\/p>\n

Avec leur taille compacte et leur poids de 57 g seulement, les DVC 1000 sont uniques sur le march\u00e9. Parmi leurs autres caract\u00e9ristiques essentielles, citons leur conformit\u00e9 \u00e0 de nombreuses normes de s\u00e9curit\u00e9 reconnues au niveau international, en plus de leur conformit\u00e9 aux sp\u00e9cifications IRIS. Ces capteurs pr\u00e9sentent un temps de r\u00e9ponse rapide de 12 \u00e0 17 \u00b5s \u00e0 90% de la tension nominale.<\/p>\n

Con\u00e7us par LEM conform\u00e9ment aux derni\u00e8res normes ferroviaires et industrielles, les DVC 1000 utilisent des mat\u00e9riaux conformes \u00e0 toutes les exigences en mati\u00e8re de feux\/fum\u00e9es (EN 45545), obligatoires pour les applications ferroviaires. Ils sont marqu\u00e9s CE et b\u00e9n\u00e9ficient d\u2019une garantie de cinq ans, comme tous les capteurs LEM.<\/p>\n

www.lem.com<\/a> <\/p>\n

LEM d\u00e9voile sa nouvelle identit\u00e9 de marque<\/a><\/h3>\n

LEM \u00e9tend sa gamme de capteurs de haute pr\u00e9cision<\/a><\/h3>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Con\u00e7ue pour mesurer une tension nominale de 1000 Veff, la s\u00e9rie DVC 1000 de LEM utilise un amplificateur d\u2019isolation, qui garantit un tr\u00e8s haut niveau d’isolation avec une tension d’isolation de s\u00e9curit\u00e9 de 4,2 kV. L’utilisation d’un amplificateur d\u2019isolation permet un gain de place important, par rapport aux capteurs concurrents qui font appel \u00e0 une isolation galvanique encombrante.<\/p>\n","protected":false},"author":9,"featured_media":50920,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1141],"class_list":["post-50919","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"Capteur de tension compact \u00e0 monter en ch\u00e2ssis ...<\/title>\n<meta name=\"description\" content=\"Con\u00e7ue pour mesurer une tension nominale de 1000 Veff, la s\u00e9rie DVC 1000 de LEM utilise un amplificateur d\u2019isolation, qui garantit un tr\u00e8s haut niveau...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/50919\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Capteur de tension compact \u00e0 monter en ch\u00e2ssis\" \/>\n<meta property=\"og:description\" content=\"Con\u00e7ue pour mesurer une tension nominale de 1000 Veff, la s\u00e9rie DVC 1000 de LEM utilise un amplificateur d\u2019isolation, qui garantit un tr\u00e8s haut niveau d'isolation avec une tension d'isolation de s\u00e9curit\u00e9 de 4,2 kV. 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