{"id":19947,"date":"2026-03-08T18:08:19","date_gmt":"2026-03-08T10:08:19","guid":{"rendered":"https:\/\/lorentzzi.com\/?p=19947"},"modified":"2026-03-17T18:02:46","modified_gmt":"2026-03-17T10:02:46","slug":"3-methods-to-identify-and-check-pnp-and-npn-sensor","status":"publish","type":"post","link":"https:\/\/lorentzzi.com\/fr\/3-methods-to-identify-and-check-pnp-and-npn-sensor\/","title":{"rendered":"3 M\u00e9thodes d'identification et de v\u00e9rification des capteurs PNP et NPN"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"19947\" class=\"elementor elementor-19947\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-aebaa6c e-flex e-con-boxed e-con e-parent\" data-id=\"aebaa6c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-308d7f6 elementor-widget elementor-widget-text-editor\" data-id=\"308d7f6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Avez-vous d\u00e9j\u00e0 rencontr\u00e9 ce probl\u00e8me ?<\/span><\/p><p><span style=\"font-weight: 400;\">Votre <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/proximity-sensors\/\"><span style=\"font-weight: 400;\">capteur de proximit\u00e9<\/span><\/a><\/span><span style=\"font-weight: 400;\"> est utilis\u00e9 depuis longtemps, son \u00e9tiquette est us\u00e9e et il ne fonctionne plus. Vous souhaitez le remplacer, mais vous ne savez pas s'il faut choisir un type de sortie NPN ou PNP.<\/span><\/p><p><span style=\"font-weight: 400;\">Comment d\u00e9terminer si votre capteur est de type NPN ou PNP ?<\/span><\/p><p><span style=\"font-weight: 400;\">Cette op\u00e9ration est simple pour les techniciens exp\u00e9riment\u00e9s, mais peut s'av\u00e9rer difficile pour les d\u00e9butants.<\/span><\/p><p><span style=\"font-weight: 400;\">C'est pourquoi, dans cet article, nous allons partager 3 m\u00e9thodes pratiques pour d\u00e9terminer le type de sortie de votre capteur :<\/span><\/p><ol><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Identifier \u00e0 partir de la plaque signal\u00e9tique,<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tester \u00e0 l'aide d'un multim\u00e8tre,<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">V\u00e9rifier \u00e0 l'aide d'un testeur de capteur d\u00e9di\u00e9.<\/span><\/li><\/ol><p><span style=\"font-weight: 400;\">Voyons les \u00e9tapes d\u00e9taill\u00e9es !<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f906f4 elementor-widget elementor-widget-heading\" data-id=\"6f906f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Comprendre le capteur PNP NPN<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8967bc2 eael-product-grid-column-4 elementor-widget elementor-widget-eicon-woocommerce\" data-id=\"8967bc2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"eicon-woocommerce.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\n        <div class=\"eael-product-grid eael-product-simple grid\" id=\"eael-product-grid\" data-widget-id=\"8967bc2\" data-page-id=\"19947\" data-nonce=\"024d9859c3\" >\n            <div class=\"woocommerce\">\n                <ul class=\"products eael-post-appender eael-post-appender-8967bc2\" data-ssi-desktop=\"no\" data-ssi-tablet=\"no\" data-ssi-mobile=\"no\" data-layout-mode=\"grid\"> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/inductive-proximity-sensor\/sn04-p-inductive-proximity-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img fetchpriority=\"high\" decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/12\/SN04-P-Inductiv-Proximity-Sensor-2-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"Capteur de proximit\u00e9 inductif SN04-P\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/12\/SN04-P-Inductiv-Proximity-Sensor-2-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/12\/SN04-P-Inductiv-Proximity-Sensor-2-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/12\/SN04-P-Inductiv-Proximity-Sensor-2-12x12.jpg 12w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/12\/SN04-P-Inductiv-Proximity-Sensor-2-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/12\/SN04-P-Inductiv-Proximity-Sensor-2-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/12\/SN04-P-Inductiv-Proximity-Sensor-2-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2025\/12\/SN04-P-Inductiv-Proximity-Sensor-2.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/inductive-proximity-sensor\/sn04-p-inductive-proximity-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">Capteur de proximit\u00e9 inductif SN04-P<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/inductive-proximity-sensor\/sn04-p-inductive-proximity-sensor\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_19569\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"19569\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cSN04-P Inductive Proximity Sensor\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_19569\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/photoelectric-sensor\/g30-photoelectric-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/04\/G30-photoeletrical-sensor-1-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"Lorentzzi M30 taille de filetage G30 capteur photo\u00e9lectrique\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/04\/G30-photoeletrical-sensor-1-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/04\/G30-photoeletrical-sensor-1-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/04\/G30-photoeletrical-sensor-1-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/04\/G30-photoeletrical-sensor-1-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/04\/G30-photoeletrical-sensor-1-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/04\/G30-photoeletrical-sensor-1.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/photoelectric-sensor\/g30-photoelectric-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">Capteur photo\u00e9lectrique G30<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/photoelectric-sensor\/g30-photoelectric-sensor\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_7707\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"7707\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cG30 Photoelectric Sensor\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_7707\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/inductive-proximity-sensor\/sn04-n-inductive-proximity-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/03\/SN04-N-Inductive-Proximity-Sensor-1-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"D\u00e9tecteur de proximit\u00e9 inductif SN04-N\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/03\/SN04-N-Inductive-Proximity-Sensor-1-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/03\/SN04-N-Inductive-Proximity-Sensor-1-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/03\/SN04-N-Inductive-Proximity-Sensor-1-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/03\/SN04-N-Inductive-Proximity-Sensor-1-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/03\/SN04-N-Inductive-Proximity-Sensor-1-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/03\/SN04-N-Inductive-Proximity-Sensor-1.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/inductive-proximity-sensor\/sn04-n-inductive-proximity-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">D\u00e9tecteur de proximit\u00e9 inductif SN04-N<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/inductive-proximity-sensor\/sn04-n-inductive-proximity-sensor\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_7211\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"7211\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cSN04-N Inductive Proximity Sensor\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_7211\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li> <li class=\"product\">\n<div class=\"eael-product-wrap\" data-src=\"\" data-src-hover=\"\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/inductive-proximity-sensor\/m30-proximity-sensor-30mm-diameter-inductive-proximity-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><img decoding=\"async\" width=\"300\" height=\"300\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LM30-2-300x300.jpg\" class=\"attachment-woocommerce_thumbnail size-woocommerce_thumbnail wvs-archive-product-image\" alt=\"Capteur de proximit\u00e9 M30 photo-1\" loading=\"eager\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LM30-2-300x300.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LM30-2-150x150.jpg 150w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LM30-2-600x600.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LM30-2-100x100.jpg 100w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LM30-2-64x64.jpg 64w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LM30-2.jpg 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><div class=\"eael-product-title\">\n    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/inductive-proximity-sensor\/m30-proximity-sensor-30mm-diameter-inductive-proximity-sensor\/\" class=\"woocommerce-LoopProduct-link woocommerce-loop-product__link\"><h3 class=\"woocommerce-loop-product__title\">D\u00e9tecteur de proximit\u00e9 M30, d\u00e9tecteur de proximit\u00e9 inductif de 30 mm de diam\u00e8tre<\/h3><\/a>\n    <\/div>    <a href=\"https:\/\/lorentzzi.com\/fr\/products\/proximity-sensor\/inductive-proximity-sensor\/m30-proximity-sensor-30mm-diameter-inductive-proximity-sensor\/\" aria-describedby=\"woocommerce_loop_add_to_cart_link_describedby_6968\" data-quantity=\"1\" class=\"button product_type_simple\" data-product_id=\"6968\" data-product_sku=\"\" aria-label=\"En savoir plus sur \u201cM30 Proximity Sensor, 30mm Diameter Inductive Proximity Sensor\u201d\" rel=\"nofollow\" data-success_message=\"\" data-no-translation=\"\" data-trp-gettext=\"\" data-no-translation-aria-label=\"\">Lire la suite<\/a>\t<span id=\"woocommerce_loop_add_to_cart_link_describedby_6968\" class=\"screen-reader-text\">\n\t\t\t<\/span>\n    \n<\/div>\n\n<\/li><\/ul>            <\/div>\n        <\/div>\n\n        <script type=\"text\/javascript\">\n            jQuery(document).ready(function($) {\n                var $scope = jQuery(\".elementor-element-8967bc2\");\n                var $products = $('.products', $scope);\n                var $layout_mode = $products.data('layout-mode');\n                \n                if ( $layout_mode === 'masonry' ) {\n                    \/\/ init isotope\n                    var $isotope_products = $products.isotope({\n                        itemSelector: \"li.product\",\n                        layoutMode: $layout_mode,\n                        percentPosition: true\n                    });\n\n                    $isotope_products.imagesLoaded().progress( function() {\n                        $isotope_products.isotope('layout');\n                    })\n                    \n                }\n            });\n        <\/script>\n        \t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-61722ac elementor-widget elementor-widget-text-editor\" data-id=\"61722ac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Avant de d\u00e9terminer si un capteur est NPN ou PNP, il est essentiel de comprendre la diff\u00e9rence fondamentale entre ces deux types de sortie.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f85ad12 elementor-widget elementor-widget-image\" data-id=\"f85ad12\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/NPN-and-PNP-sensors-common-electrode-connection.jpg\" class=\"attachment-large size-large wp-image-19943\" alt=\"Capteurs NPN et PNP connexion d&#039;\u00e9lectrode commune\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/NPN-and-PNP-sensors-common-electrode-connection.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/NPN-and-PNP-sensors-common-electrode-connection-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/NPN-and-PNP-sensors-common-electrode-connection-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/NPN-and-PNP-sensors-common-electrode-connection-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/NPN-and-PNP-sensors-common-electrode-connection-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/NPN-and-PNP-sensors-common-electrode-connection-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1fe469c elementor-widget elementor-widget-text-editor\" data-id=\"1fe469c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>Capteurs NPN<\/b><span style=\"font-weight: 400;\">: Les capteurs NPN sont largement utilis\u00e9s dans les pays asiatiques tels que la Chine et le Japon. Ils contr\u00f4lent g\u00e9n\u00e9ralement la borne n\u00e9gative (0V) de l'alimentation \u00e9lectrique. Par exemple, un capteur NPN normalement ouvert (NO) \u00e9met un signal de faible niveau lorsqu'il d\u00e9tecte un objet.<\/span><\/p><p><b>Capteurs PNP<\/b><span style=\"font-weight: 400;\">: Contrairement aux capteurs NPN, les capteurs PNP d\u00e9tiennent la majorit\u00e9 des parts de march\u00e9 en Europe et aux \u00c9tats-Unis. Ils contr\u00f4lent g\u00e9n\u00e9ralement la borne positive (VCC) de l'alimentation \u00e9lectrique. De m\u00eame, un capteur PNP normalement ouvert (NO) \u00e9met un signal de haut niveau lorsqu'il d\u00e9tecte un objet.<\/span><\/p><p><span style=\"font-weight: 400;\">Conseils : Pour en savoir plus sur les diff\u00e9rences entre les capteurs NPN et PNP, vous pouvez lire notre article : <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/pnp-vs-npn-proximity-sensors-key-differences-wiring-diagram-and-how-to-choose\/\"><span style=\"font-weight: 400;\">Capteurs de proximit\u00e9 PNP ou NPN : Diff\u00e9rences principales, sch\u00e9ma de c\u00e2blage et comment choisir<\/span><\/a><\/span><span style=\"font-weight: 400;\">.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-84b09c8 elementor-widget elementor-widget-heading\" data-id=\"84b09c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">M\u00e9thode 1 : V\u00e9rifier la plaque signal\u00e9tique et le sch\u00e9ma de c\u00e2blage<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-36239b0 elementor-widget elementor-widget-image\" data-id=\"36239b0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Distinguishing-between-PNP-and-NPN-sensors-by-their-nameplates.jpg\" class=\"attachment-large size-large wp-image-19944\" alt=\"Distinguer les capteurs PNP et NPN d&#039;apr\u00e8s leur plaque signal\u00e9tique\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Distinguishing-between-PNP-and-NPN-sensors-by-their-nameplates.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Distinguishing-between-PNP-and-NPN-sensors-by-their-nameplates-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Distinguishing-between-PNP-and-NPN-sensors-by-their-nameplates-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Distinguishing-between-PNP-and-NPN-sensors-by-their-nameplates-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Distinguishing-between-PNP-and-NPN-sensors-by-their-nameplates-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Distinguishing-between-PNP-and-NPN-sensors-by-their-nameplates-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3df7680 elementor-widget elementor-widget-text-editor\" data-id=\"3df7680\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">La mani\u00e8re la plus simple d'identifier si un capteur est de type NPN ou PNP est de v\u00e9rifier sa plaque signal\u00e9tique. Le fil marron (BN) doit \u00eatre connect\u00e9 \u00e0 la borne positive de l'alimentation, et le fil bleu (BU) doit \u00eatre connect\u00e9 \u00e0 la borne n\u00e9gative. Il n'y a pas de diff\u00e9rence entre les capteurs de type NPN et PNP \u00e0 cet \u00e9gard.<\/span><\/p><p><span style=\"font-weight: 400;\">La diff\u00e9rence r\u00e9side dans les fils de signalisation (BK, fil noir).<\/span><\/p><p><span style=\"font-weight: 400;\">Comme le montre la partie droite du diagramme ci-dessus, le fil de signal d'un capteur de type PNP doit \u00eatre connect\u00e9 \u00e0 la borne n\u00e9gative (BU, fil bleu) pour former un circuit ferm\u00e9 complet.<\/span><\/p><p><span style=\"font-weight: 400;\">Inversement, le fil de signal d'un capteur de type NPN doit \u00eatre connect\u00e9 \u00e0 la borne positive pour former un circuit ferm\u00e9 complet.<\/span><\/p><p><span style=\"font-weight: 400;\">Par cons\u00e9quent, compar\u00e9 aux sch\u00e9mas de c\u00e2blage des capteurs de type PNP et NPN sur la droite, le capteur sur le c\u00f4t\u00e9 gauche du sch\u00e9ma est un capteur de sortie de type PNP.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f4514b7 elementor-widget elementor-widget-heading\" data-id=\"f4514b7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">M\u00e9thode 2 : mesure de la tension \u00e0 l'aide d'un multim\u00e8tre (la plus recommand\u00e9e)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a4a1a7e elementor-widget elementor-widget-text-editor\" data-id=\"a4a1a7e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Pour les ing\u00e9nieurs \u00e9lectriciens ou les \u00e9lectriciens, le multim\u00e8tre est l'outil de test le plus couramment utilis\u00e9. Peut-on donc l'utiliser pour tester le type d'un capteur ? La r\u00e9ponse est oui. Vous trouverez ci-dessous un guide sur l'utilisation d'un multim\u00e8tre pour d\u00e9terminer si un capteur est de type NPN ou PNP.<\/span><\/p><p><span style=\"font-weight: 400;\">Pr\u00e9parez d'abord le mat\u00e9riel suivant : <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/cntnmcb.com\/residual-current-circuit-breaker-with-overcurrent-protection\/\" target=\"_blank\" rel=\"noopener\">un AC RCBO<\/a><\/span>, Pour cela, il faut une alimentation \u00e0 d\u00e9coupage de 24 V CC, le capteur \u00e0 tester et un multim\u00e8tre.<\/span><\/p><p><span style=\"font-weight: 400;\">Les \u00e9tapes de l'op\u00e9ration sont les suivantes :<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0786356 elementor-widget elementor-widget-image\" data-id=\"0786356\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Use-multimeter-to-identify-the-sensor-is-PNP-or-NPN-wring-diagram.jpg\" class=\"attachment-large size-large wp-image-19945\" alt=\"Utilisation d&#039;un multim\u00e8tre pour identifier si le capteur est PNP ou NPN.\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Use-multimeter-to-identify-the-sensor-is-PNP-or-NPN-wring-diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Use-multimeter-to-identify-the-sensor-is-PNP-or-NPN-wring-diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Use-multimeter-to-identify-the-sensor-is-PNP-or-NPN-wring-diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Use-multimeter-to-identify-the-sensor-is-PNP-or-NPN-wring-diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Use-multimeter-to-identify-the-sensor-is-PNP-or-NPN-wring-diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Use-multimeter-to-identify-the-sensor-is-PNP-or-NPN-wring-diagram-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5edb142 elementor-widget elementor-widget-text-editor\" data-id=\"5edb142\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ol><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Branchez l'alimentation en courant alternatif \u00e0 la borne d'entr\u00e9e de l'alimentation \u00e0 d\u00e9coupage par l'interm\u00e9diaire de l'interrupteur d'alimentation. <span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/cntnmcb.com\/residual-current-circuit-breaker-with-overcurrent-protection\/\" target=\"_blank\" rel=\"noopener\">RCBO (disjoncteur r\u00e9siduel avec protection contre les surcharges)<\/a><\/span> (Remarque : le RCBO doit \u00eatre ouvert \u00e0 ce moment-l\u00e0 ; ne pas le mettre sous tension).<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Connectez le cordon d'alimentation du capteur \u00e0 l'alimentation \u00e0 d\u00e9coupage : connectez le fil marron \u00e0 la borne positive (+24V) de l'alimentation \u00e0 d\u00e9coupage, et le fil bleu \u00e0 la borne n\u00e9gative (0V).<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">R\u00e9glez le multim\u00e8tre sur la plage de tension continue (DCV). Connectez la sonde rouge \u00e0 la borne positive (+24V) de l'alimentation \u00e0 d\u00e9coupage et la sonde noire au fil de signal noir (fil de sortie) du capteur.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fermez le RCBO pour alimenter le capteur. Approchez ensuite l'objet \u00e0 mesurer de la surface de d\u00e9tection du capteur pour l'activer et observez simultan\u00e9ment la valeur de la tension affich\u00e9e sur le multim\u00e8tre.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">M\u00e9thode de jugement :<\/span><\/li><\/ol><p><span style=\"font-weight: 400;\">Si le multim\u00e8tre affiche environ 24 V (c'est-\u00e0-dire la tension d'alimentation), le capteur est de type NPN (\u00e9tant donn\u00e9 qu'un type NPN \u00e9met un niveau bas, le fil noir est conducteur \u00e0 la terre, de sorte que la tension entre la borne positive et le fil noir est de 24 V) ;<\/span><\/p><p><span style=\"font-weight: 400;\">Si le multim\u00e8tre affiche une tension proche de 0V, le capteur est de type PNP (parce qu'un capteur de type PNP \u00e9met un niveau \u00e9lev\u00e9, le fil noir est conducteur \u00e0 la borne positive, de sorte que la tension entre la borne positive et le fil noir est de 0V).<\/span><\/p><p><span style=\"font-weight: 400;\">Note : Veillez \u00e0 ce que le c\u00e2blage soit correct pendant l'op\u00e9ration afin d'\u00e9viter les courts-circuits. Le capteur doit \u00eatre en \u00e9tat de marche pendant la mesure et des pr\u00e9cautions de s\u00e9curit\u00e9 doivent \u00eatre prises.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9f6ed7b elementor-widget elementor-widget-heading\" data-id=\"9f6ed7b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">M\u00e9thode 3 : Utilisation d'un testeur de capteurs PNP\/NPN<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b70e30a elementor-widget elementor-widget-image\" data-id=\"b70e30a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Using-sensor-tester-to-confirm-the-PNP-or-NPN-sensor.jpg\" class=\"attachment-large size-large wp-image-19942\" alt=\"Utilisation d&#039;un testeur de capteurs pour confirmer la pr\u00e9sence d&#039;un capteur PNP ou NPN\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Using-sensor-tester-to-confirm-the-PNP-or-NPN-sensor.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Using-sensor-tester-to-confirm-the-PNP-or-NPN-sensor-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Using-sensor-tester-to-confirm-the-PNP-or-NPN-sensor-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Using-sensor-tester-to-confirm-the-PNP-or-NPN-sensor-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Using-sensor-tester-to-confirm-the-PNP-or-NPN-sensor-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/03\/Using-sensor-tester-to-confirm-the-PNP-or-NPN-sensor-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a597db5 elementor-widget elementor-widget-text-editor\" data-id=\"a597db5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Si vous disposez d'un budget suffisant et que vous devez souvent distinguer des types de capteurs, le testeur de capteurs pr\u00e9sent\u00e9 dans l'image ci-dessus est un meilleur choix. Il est plus rapide et plus simple que l'utilisation d'un multim\u00e8tre.<\/span><\/p><p><span style=\"font-weight: 400;\">Nous vous expliquons ci-dessous comment utiliser ce testeur de capteurs.<\/span><\/p><p><span style=\"font-weight: 400;\">Il est tr\u00e8s simple \u00e0 utiliser. Il suffit de connecter le fil marron du capteur \u00e0 la borne positive du testeur, le fil bleu \u00e0 la borne n\u00e9gative et le fil de signal du capteur \u00e0 la borne de sortie. Apr\u00e8s le c\u00e2blage, mettez le testeur sous tension et il identifiera automatiquement le type de capteur : s'il s'agit d'un capteur PNP, le voyant jaune PNP s'allumera ; s'il s'agit d'un capteur NPN, le voyant NPN s'allumera.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a8fa3d1 elementor-widget elementor-widget-heading\" data-id=\"a8fa3d1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a93e961 elementor-widget elementor-widget-text-editor\" data-id=\"a93e961\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">En r\u00e9sum\u00e9, vous pouvez d\u00e9terminer si votre capteur est de type NPN ou PNP en lisant la plaque signal\u00e9tique du capteur et le sch\u00e9ma de c\u00e2blage, et en utilisant un multim\u00e8tre ou un testeur de capteur PNP\/NPN.<\/span><\/p><p><span style=\"font-weight: 400;\">Si vous avez encore des questions sur la diff\u00e9renciation des capteurs ou si vous avez besoin d'une assistance technique, <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/fr\/\"><span style=\"font-weight: 400;\">Lorentzzi Electric<\/span><\/a><\/span><span style=\"font-weight: 400;\"> offre une consultation gratuite. Vous pouvez nous contacter en envoyant un courriel \u00e0 <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"mailto:shonxu@lorentzzi.com\"><span style=\"font-weight: 400;\">shonxu@lorentzzi.com<\/span><\/a><\/span><span style=\"font-weight: 400;\">, et notre personnel vous r\u00e9pondra dans les 24 heures.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Have you ever encountered this problem? Your proximity sensor has been in use for a long time, its label has worn off, and it has stopped working. You want to replace it, but you\u2019re not sure whether to choose an NPN or PNP output type. So how can you identify whether your sensor is NPN [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":19946,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","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":"","adv-header-id-meta":"","stick-header-meta":"","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":"","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[110],"tags":[],"class_list":["post-19947","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sensor","desktop-align-center","tablet-align-left","mobile-align-left"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.0 (Yoast SEO v27.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>3 Methods to Identify and Check PNP and NPN Sensor<\/title>\n<meta name=\"description\" content=\"In this blog post, we will provide you 3 methods to identify and check PNP and NPN sensor, click to learn more now!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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