{"id":6850,"date":"2014-02-10T10:18:40","date_gmt":"2014-02-10T10:18:40","guid":{"rendered":"https:\/\/g1.redseafish.com\/red-sea-salts\/seawater-refractometer-salinity-test\/"},"modified":"2019-07-01T07:19:44","modified_gmt":"2019-07-01T07:19:44","slug":"seawater-refractometer-salinity-test","status":"publish","type":"page","link":"https:\/\/g1.redseafish.com\/fr\/red-sea-salts\/seawater-refractometer-salinity-test\/","title":{"rendered":"REFRACTOMETRE EAU DE MER"},"content":{"rendered":"<div class=\"title18 right\">\n<div class=\"gallery\">\n\t<div class=\"gallery_top\">\n\t\t\t\t\t\t\t\t\t<div class=\"gallery_top_item\" style='display:block'>\n\t\t\t\t<div class=\"tablecell\"><img src=\"https:\/\/g1.redseafish.com\/wp-content\/uploads\/2014\/02\/RefractometerBox.png\" \/><\/div>\n\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t<\/div>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<\/div>\n<h3 class=\"title18\">Le r\u00e9fractom\u00e8tre pour eau de mer offre une pr\u00e9cision exceptionnelle car il utilise un algorithme sp\u00e9cifique d\u00e9velopp\u00e9 pour mesurer la salinit\u00e9 absolue de l\u2019eau de mer \u00e0 une temp\u00e9rature de 25\u00b0C.<\/h3>\n<p>&nbsp;<\/p>\n<p>La plupart des r\u00e9fractom\u00e8tres utilis\u00e9s dans le hobby ne sont pas sp\u00e9cifiquement \u00e9tudi\u00e9s pour les aquariums r\u00e9cifaux et utilisent un algorithme de mesure de la saumure (NaCl plut\u00f4t que eau de mer) pour une temp\u00e9rature de 15\u00b0C plut\u00f4t que 25\u00b0C.<\/p>\n<p>&nbsp;<\/p>\n<p>Cela donne une possible d\u00e9viation du r\u00e9sultat de 1.5 ppt, ce qui peut avoir de vrais effets sur la croissance corallienne et la coloration.<\/p>\n<div class=\"title16\"><div class=\"help_bar is-single\">\n\t<div class=\"prod-links clearfix\">\n\t\t\t\t\t<div class=\"left prod-link-item help_bar_item1\"><a href=\"https:\/\/g1.redseafish.com\/wp-content\/uploads\/2014\/02\/3425_Refractometer_-Manual_For_web.pdf\" target=\"_blank\">\n\t\t\t<span class=\"prod-link-item__in\">Manuel <!-- Generator: Adobe Illustrator 23.0.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->\n<svg version=\"1.1\" id=\"Layer_1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" x=\"0px\" y=\"0px\" width=\"13\"\n\t viewBox=\"0 0 13 16\" enable-background=\"new 0 0 13 16\" xml:space=\"preserve\">\n<g>\n\t<path fill=\"currentColor\" d=\"M10.9,15.2H2.1c-0.9,0-1.7-0.8-1.7-1.7V2.5c0-0.9,0.8-1.7,1.7-1.7h8.8c0.9,0,1.7,0.8,1.7,1.7v8.8\n\t\tc0,0.9-0.8,1.7-1.7,1.7H2.1c-0.3,0-0.6,0.3-0.6,0.6s0.3,0.6,0.6,0.6h8.8c0.2,0,0.4,0,0.6-0.1l0.4,0.9\n\t\tC11.5,15.1,11.2,15.2,10.9,15.2z M2.1,1.8c-0.4,0-0.7,0.3-0.7,0.7v9.7C1.6,12,1.9,12,2.1,12h8.8c0.4,0,0.7-0.3,0.7-0.7V2.5\n\t\tc0-0.4-0.3-0.7-0.7-0.7H2.1z\"\/>\n<\/g>\n<path fill=\"#FFFFFF\" d=\"M-167,317c29.3-0.1,58.6-0.2,87.9-0.2c62.8,0,125.6,0,188.4,0c56.1,0,112.3,0,168.4,0c2.1,0,4.3,0,6.8,0\n\tc0.1-1.7,0.3-3.2,0.3-4.6c0-104.1-0.1-208.2-0.1-312.3c0-62.3,0.1-124.6,0.1-186.9c0-1,0.1-2,0.2-3c0.3,1.3,1,2.7,1,4\n\tc0.1,21.3,0,42.7,0,64c0,146.7,0,293.3,0,440c-149.5,0-299,0-448.5,0C-164,318-165.5,317.3-167,317z\"\/>\n<g>\n\t<path fill=\"currentColor\" d=\"M5.3,5.9c0.6,0,1.2,0,1.7,0c0,1.2,0,2.3,0,3.5c0.2,0,0.3,0,0.4,0c0.1,0,0.2,0,0.2,0.2c0,0.1,0,0.3,0,0.4\n\t\tc-0.1,0.1-0.3,0-0.4,0c-0.6,0-1.2,0-1.8,0c0,0-0.1,0-0.1,0c0-0.2,0-0.3,0-0.5c0,0,0.1-0.1,0.1-0.1c0.1,0,0.2,0,0.3,0\n\t\tc0.1,0,0.1,0,0.1-0.1c0-0.6,0-1.2,0-1.8c0-0.3,0-0.5,0-0.8c0-0.1,0-0.1,0-0.2c-0.2,0-0.4,0-0.6,0C5.3,6.3,5.3,6.1,5.3,5.9z\"\/>\n\t<path fill=\"currentColor\" d=\"M6.3,5.4C5.9,5.4,5.6,5,5.6,4.6c0-0.4,0.3-0.7,0.7-0.7c0.4,0,0.7,0.3,0.7,0.7C7.1,5,6.7,5.4,6.3,5.4z\"\/>\n<\/g>\n<\/svg>\n<\/span>\n\t\t\t<\/a><\/div>\n\t\t\t\t\t\t\t\t\t\t<\/div>\n<\/div>\n<\/div>\n<h4 class=\"title16\">r\u00e9fractom\u00e8tre pour eau de mer vid\u00e9o Red Sea<\/h4>\n<div class=\"youtube_sc  fluid widescreen\"><div class=\"inner block\"><noscript><style type=\"text\/css\">.youtube_sc iframe.yp{display:none;}<\/style><object width=\"560\" height=\"340\" class=\"yp\" title=\"YouTube video player\"><param name=\"movie\" value=\"http:\/\/www.youtube.com\/v\/O6j9SGMHt0Y?version=3&amp;autohide=1&amp;color=white&amp;fs=1&amp;iv_load_policy=3&amp;modestbranding=1&amp;rel=0&amp;showinfo=0&amp;theme=light&amp;hl=en_US\"><param name=\"allowfullscreen\" value=\"true\"><param name=\"allowscriptaccess\" value=\"always\"><param name=\"wmode\" value=\"transparent\"><embed src=\"http:\/\/www.youtube.com\/v\/O6j9SGMHt0Y?version=3&amp;autohide=1&amp;color=white&amp;fs=1&amp;iv_load_policy=3&amp;modestbranding=1&amp;rel=0&amp;showinfo=0&amp;theme=light&amp;hl=en_US\" width=\"560\" height=\"340\" class=\"yp\" type=\"application\/x-shockwave-flash\" wmode=\"transparent\" allowscriptaccess=\"always\" allowfullscreen=\"true\"><span style=\"display:block;margin-top:15px;\">The Adobe Flash Player is required for video playback.<br><a href=\"http:\/\/get.adobe.com\/flashplayer\/\" title=\"Install from Adobe\">Get the latest Flash Player<\/a> or <a href=\"http:\/\/www.youtube.com\/watch?v=O6j9SGMHt0Y\" target=\"_blank\" title=\"Watch on YouTube\">Watch this video on YouTube<\/a>.<\/span><\/object><\/noscript><iframe src=\"http:\/\/www.youtube.com\/embed\/O6j9SGMHt0Y?version=3&amp;autohide=1&amp;color=white&amp;fs=1&amp;iv_load_policy=3&amp;modestbranding=1&amp;rel=0&amp;showinfo=0&amp;theme=light&amp;wmode=transparent\" width=\"560\" height=\"340\" class=\"yp\" title=\"YouTube video player\" frameborder=\"0\" allowfullscreen><\/iframe><\/div><\/div>\n<p><span style=\"text-decoration: underline; font-size: 12px;\"><a href=\"https:\/\/www.youtube.com\/channel\/UCCiVaNT1ECXtH2VEVa52q4w\" title=\"Red Sea's YouTube Channel\" target=\"_blank\" rel=\"noopener noreferrer\">Visit Red Sea&rsquo;s YouTube channel &gt;&gt;<\/a><\/span><\/p>\n<hr \/>\n<h3 class=\"title16 title18\">\u00a0Principales caract\u00e9ristiques du r\u00e9fractom\u00e8tre pour eau de mer Red Sea :<\/h3>\n<ul>\n<li>Lecture directe de la salinit\u00e9 absolue de l\u2019eau de mer \u00e0 25\u00b0C (pas besoin des facteurs de compensation eau de mer ou temp\u00e9rature).<\/li>\n<li>Sp\u00e9cialement d\u00e9velopp\u00e9 pour la teneur ionique de l\u2019eau de mer pour une mesure de la salinit\u00e9 plus pr\u00e9cise (les r\u00e9fractom\u00e8tres industriels sont calibr\u00e9s pour de la saumure).<\/li>\n<li>Calibr\u00e9 pour de l\u2019eau de mer \u00e0 25\u00b0C, temp\u00e9rature normale pour un aquarium r\u00e9cifal (la plupart des r\u00e9fractom\u00e8tres standards sont calibr\u00e9s \u00e0 15\u00b0C).<\/li>\n<li>Affichage haute r\u00e9solution facile \u00e0 lire, centr\u00e9 sur les valeurs utiles en aquariophilie r\u00e9cifale jusqu\u2019\u00e0 40 ppt.<\/li>\n<li>Compensation Automatique de la Temp\u00e9rature (ATC) pour une mesure pr\u00e9cise \u00e0 temp\u00e9rature ambiante.<\/li>\n<\/ul>\n<div class=\"title16\">\n<hr \/>\n<\/div>\n<h3 class=\"title16 title18\">Affichage du r\u00e9fractom\u00e8tre Red Sea<\/h3>\n<p>&nbsp;<\/p>\n<p>L\u2019\u00e9chelle en ppt du r\u00e9fractom\u00e8tre pour eau de mer Red Sea est calcul\u00e9e suivant un algorithme pour eau de mer et vous donnera donc la <b><span style=\"text-decoration: underline;\">Salinit\u00e9 Absolue<\/span><\/b> de votre eau de mer.<\/p>\n<p>L\u2019\u00e9chelle en ppt des r\u00e9fractom\u00e8tres classiques est calcul\u00e9e suivant un algorithme pour de la saumure. L\u2019utilisation de tels r\u00e9fractom\u00e8tres vous donnera une erreur d\u2019environ 1.5 ppt.<\/p>\n<p>&nbsp;<\/p>\n<table border=\"0\">\n<tbody>\n<tr>\n<td>\n<div><img loading=\"lazy\" title=\"Red Sea\u2019s Seawater salinity refractometer\" src=\"https:\/\/g1.redseafish.com\/wp-content\/uploads\/2014\/02\/Red-Sea-Refratometer.jpg\" alt=\"Red Sea\u2019s Seawater refractometer red sea seawater refractometer. salinity test for saltwater aquariums\" width=\"373\" height=\"233\" \/><\/div>\n<\/td>\n<td>\n<div><a href=\"https:\/\/g1.redseafish.com\/wp-content\/uploads\/2014\/02\/refractometer.jpg\"><img loading=\"lazy\" src=\"https:\/\/g1.redseafish.com\/wp-content\/uploads\/2014\/02\/refractometer.jpg\" alt=\"refractometer\" width=\"373\" height=\"233\" \/><\/a><\/div>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<div style=\"text-align: center;\">Affichage du r\u00e9fractom\u00e8tre Red Sea<\/div>\n<\/td>\n<td>\n<div style=\"text-align: center;\">Affichage d\u2019un r\u00e9fractom\u00e8tre classique<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h4 class=\"title18 title16\"><b>A propos de la Salinit\u00e9<\/b><\/h4>\n<div class=\"title18\"><\/div>\n<p>La salinit\u00e9 est un terme g\u00e9n\u00e9ral qui d\u00e9crit la concentration de sel dans l\u2019eau. Cependant diff\u00e9rents types de solutions sal\u00e9es ont diff\u00e9rents index de r\u00e9fraction.<\/p>\n<p>La saumure est une solution de Chlorure de Sodium qui contient 2 \u00e9l\u00e9ments chimiques.<\/p>\n<p>L\u2019eau de mer contient approximativement 70 \u00e9l\u00e9ments chimiques dont Calcium, Magn\u00e9sium, Potassium, etc\u2026en plus du Chlorure de Sodium.<\/p>\n<p>De l\u2019eau de mer et de la saumure avec la m\u00eame salinit\u00e9 (donc le m\u00eame nombre de grammes de sel par litre d\u2019eau) ont des index de r\u00e9fraction diff\u00e9rents et donneront diff\u00e9rentes lectures de salinit\u00e9 sur le m\u00eame r\u00e9fractom\u00e8tre.<\/p>\n<hr \/>\n<h4 class=\"title18 title16\">R\u00e9fraction et indice de r\u00e9fraction<span style=\"text-decoration: underline;\"><br \/>\n<\/span><\/h4>\n<p>Tous les mat\u00e9riaux transparents comme les liquides r\u00e9fractent la lumi\u00e8re.<\/p>\n<p>Tous les mat\u00e9riaux transparents r\u00e9fractent la lumi\u00e8re diff\u00e9remment et ont ce qu\u2019on appelle un \u00ab\u00a0indice de r\u00e9fraction\u00a0\u00bb qui indique \u00e0 quel point un mat\u00e9riau donn\u00e9 r\u00e9fracte la lumi\u00e8re.<\/p>\n<p>Diff\u00e9rentes concentrations d\u2019un m\u00eame liquide ont diff\u00e9rents index de r\u00e9fraction.<\/p>\n<p>L\u2019\u00e9chelle d\u2019un r\u00e9fractom\u00e8tre est calcul\u00e9e en utilisant un algorithme math\u00e9matique qui traduit la r\u00e9fraction mesur\u00e9e \u00e0 telle concentration pour un liquide sp\u00e9cifique.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/g1.redseafish.com\/wp-content\/uploads\/2014\/02\/Refraction.jpg\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-40990\" src=\"https:\/\/g1.redseafish.com\/wp-content\/uploads\/2014\/02\/Refraction.jpg\" alt=\"Refraction\" width=\"738\" height=\"400\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<h3 class=\"title18\">Index de r\u00e9fraction et temp\u00e9rature<\/h3>\n<p>&nbsp;<\/p>\n<p>Les index de r\u00e9fraction d\u2019un liquide changent selon la temp\u00e9rature ce qui a des effets majeurs sur la mesure de la salinit\u00e9 avec un r\u00e9fractom\u00e8tre.<\/p>\n<p>&nbsp;<\/p>\n<p>L\u2019algorithme qui d\u00e9finit l\u2019\u00e9chelle en ppt d\u2019un r\u00e9fractom\u00e8tre est calcul\u00e9e \u00e0 une temp\u00e9rature sp\u00e9cifique.<\/p>\n<p>&nbsp;<\/p>\n<p>La lecture des ppt de r\u00e9fractom\u00e8tres qui ne sont pas calibr\u00e9s pour les aquariums r\u00e9cifaux (c\u2019est-\u00e0-dire \u00e0 25\u00b0C) doit \u00eatre ajust\u00e9e via une table de conversion pour donner les ppt pour la temp\u00e9rature de l\u2019aquarium. C\u2019est souvent une cause de mauvaise interpr\u00e9tation de lecture des r\u00e9fractom\u00e8tres.<\/p>\n<p>&nbsp;<\/p>\n<p>Par exemple, l\u2019utilisation d\u2019un r\u00e9fractom\u00e8tre d\u2019eau de mer calibr\u00e9 \u00e0 20\u00b0C donnera une lecture approximativement 1.5 ppt plus basse que la salinit\u00e9 absolue du m\u00eame \u00e9chantillon \u00e0 la temp\u00e9rature normale d\u2019un aquarium \u00e0 25\u00b0C.<\/p>\n<p>&nbsp;<\/p>\n<h4 class=\"title16\">C\u2019est pourquoi le r\u00e9fractom\u00e8tre pour eau de mer Red Sea calibr\u00e9 \u00e0 25\u00b0C vous permet de lire directement la Salinit\u00e9 Absolue de l\u2019eau de mer sans appliquer aucun facteur de compensation.<\/h4>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n<p><b>ATC \u2013 Compensation Automatique de la Temp\u00e9rature<\/b><\/p>\n<p>&nbsp;<\/p>\n<p>La temp\u00e9rature est probablement la premi\u00e8re cause de mauvaise lecture d\u2019un r\u00e9fractom\u00e8tre. La calibration et le test des \u00e9chantillons d\u2019eau devraient \u00eatre faits apr\u00e8s que le r\u00e9fractom\u00e8tre et l\u2019\u00e9chantillon d\u2019eau soient \u00e0 la m\u00eame temp\u00e9rature.<\/p>\n<p>&nbsp;<\/p>\n<p>L\u2019ATC compense les quelques degr\u00e9s de diff\u00e9rence entre la temp\u00e9rature ambiante et la temp\u00e9rature de calibration du r\u00e9fractom\u00e8tre. De plus gros \u00e9carts donneront une erreur d\u2019environ 1 ppt.<\/p>\n<p>&nbsp;<\/p>\n<p>L\u2019ATC n\u2019ajuste pas la lecture d\u2019un r\u00e9fractom\u00e8tre \u00e0 la temp\u00e9rature de l\u2019aquarium.<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Le r\u00e9fractom\u00e8tre pour eau de mer offre une pr\u00e9cision exceptionnelle car il utilise un algorithme sp\u00e9cifique d\u00e9velopp\u00e9 pour mesurer la salinit\u00e9 absolue de l\u2019eau de mer \u00e0 une temp\u00e9rature de 25\u00b0C. &nbsp; La plupart des r\u00e9fractom\u00e8tres utilis\u00e9s dans le hobby ne sont pas sp\u00e9cifiquement \u00e9tudi\u00e9s pour les aquariums r\u00e9cifaux [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"parent":73041,"menu_order":782,"comment_status":"open","ping_status":"open","template":"page-templates\/product.php","meta":[],"yoast_head":"<!-- This site is optimized with 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