{"id":1349,"date":"2021-03-23T17:23:07","date_gmt":"2021-03-23T17:23:07","guid":{"rendered":"https:\/\/kcsensor.com\/?post_type=product&p=1349"},"modified":"2025-02-24T08:49:43","modified_gmt":"2025-02-24T08:49:43","slug":"online-cod-water-quality-analyzer-kcd600","status":"publish","type":"product","link":"https:\/\/www.kcsensor.com\/fr\/product\/online-cod-water-quality-analyzer-kcd600\/","title":{"rendered":"Analyseur en ligne de la qualit\u00e9 de l'eau (COD) KCD600"},"content":{"rendered":"

<\/a>Caract\u00e9ristiques techniques<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Mod\u00e8le<\/td>\nKCD600<\/td>\n<\/tr>\n
Param\u00e8tre de surveillance<\/td>\nPaiement \u00e0 la livraison<\/td>\n<\/tr>\n
M\u00e9thode<\/td>\nOxydation au dichromate de potassium, spectrophotom\u00e9trie<\/td>\n<\/tr>\n
Gamme<\/td>\nLes plages (0-1 000) mg\/L et (10-40 000) mg\/L sont extensibles<\/td>\n<\/tr>\n
Unit\u00e9 d'affichage<\/td>\n\u00c9cran matriciel 12232, double affichage avec \u00e9cran tactile LCD de 7 pouces<\/td>\n<\/tr>\n
Mode de mesure<\/td>\nMesure manuelle, mesure en continu, mesure p\u00e9riodique, mesure \u00e0 point fixe et mesure automatique<\/p>\n

mesure d'\u00e9talonnage<\/td>\n<\/tr>\n

P\u00e9riode de mesure<\/td>\nEntre 30 minutes et 24 heures<\/td>\n<\/tr>\n
D\u00e9rive nulle<\/td>\n\u2264 \u00b1 1 mg\/L<\/td>\n<\/tr>\n
D\u00e9rive de la gamme<\/td>\n\u2264\u00b11%<\/td>\n<\/tr>\n
R\u00e9p\u00e9tabilit\u00e9<\/td>\n\u22643%<\/td>\n<\/tr>\n
Erreur d'indication<\/td>\n\u2264\u00b13<\/td>\n<\/tr>\n
MBTF<\/td>\n> 14 h 40<\/td>\n<\/tr>\n
Donn\u00e9es enregistr\u00e9es<\/td>\nCinq ans de stockage de donn\u00e9es<\/td>\n<\/tr>\n
Interface de communication<\/td>\nRoute 24-20 mA, Route 1 RS232, Route 1 RS485<\/td>\n<\/tr>\n
Temp\u00e9rature ambiante<\/td>\n5 \u00e0 40 \u00b0C<\/td>\n<\/tr>\n
Humidit\u00e9 ambiante<\/td>\n(65 \u00b1 20) %RH<\/td>\n<\/tr>\n
Alimentation \u00e9lectrique<\/td>\nTension nominale (220 \u00b1 22) V CA, fr\u00e9quence (50 \u00b1 1) % Hz<\/td>\n<\/tr>\n
Dimension du contour<\/td>\n551 * 403 * 651 (longueur * largeur * hauteur, en mm)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/a>Principe et utilisation d'un analyseur de DCO<\/h2>\n

Le COD est un indice global couramment utilis\u00e9 pour \u00e9valuer le degr\u00e9 de pollution de l'eau. Les substances r\u00e9ductrices pr\u00e9sentes dans l'eau sont diverses mati\u00e8res organiques, des nitrites, des sulfures, des sels ferreux, etc., mais la principale est la mati\u00e8re organique. C'est pourquoi la demande chimique en oxyg\u00e8ne (DCO) est souvent utilis\u00e9e pour mesurer la quantit\u00e9 de mati\u00e8re organique pr\u00e9sente dans l'eau. Plus la DCO est \u00e9lev\u00e9e, plus l'eau est pollu\u00e9e par la mati\u00e8re organique.<\/p>\n

Principe : m\u00e9lange d'un \u00e9chantillon d'eau, de dichromate de potassium, d'une solution de sulfate d'argent et d'acide sulfurique concentr\u00e9, suivi d'une digestion \u00e0 haute temp\u00e9rature, digestion \u00e0 haute temp\u00e9rature, d\u00e9termination de l'absorbance du chrome trivalent r\u00e9sultant de la r\u00e9duction du dichromate de potassium par l'\u00e9chantillon ; l'augmentation de la valeur d'absorbance du chrome trivalent est proportionnelle \u00e0 la valeur de la DCO, et l'absorbance du chrome trivalent est convertie en valeur de DCO.<\/p>\n

Les principaux cas d'utilisation comprennent la surveillance des eaux pluviales et des eaux us\u00e9es des entreprises, ainsi que la surveillance de la DCO dans le r\u00e9seau de canalisations municipal, les stations de pompage, les eaux souterraines, les eaux fluviales, les eaux lacustres et les eaux marines.<\/p>","protected":false},"excerpt":{"rendered":"

Le COD est un indice global couramment utilis\u00e9 pour \u00e9valuer le degr\u00e9 de pollution de l'eau. Les substances r\u00e9ductrices pr\u00e9sentes dans l'eau sont diverses mati\u00e8res organiques, des nitrites, des sulfures, des sels ferreux, etc., mais la principale est la mati\u00e8re organique. C'est pourquoi la demande chimique en oxyg\u00e8ne (DCO) est souvent utilis\u00e9e pour mesurer la quantit\u00e9 de mati\u00e8re organique pr\u00e9sente dans l'eau. Plus la DCO est \u00e9lev\u00e9e, plus l'eau est pollu\u00e9e par la mati\u00e8re organique.<\/p>","protected":false},"featured_media":1350,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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