{"id":19256,"date":"2026-10-17T11:12:50","date_gmt":"2026-10-17T03:12:50","guid":{"rendered":"https:\/\/www.wehopower.com\/news\/weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning\/"},"modified":"2026-10-19T12:09:02","modified_gmt":"2026-10-19T04:09:02","slug":"weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/fr\/news\/weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning\/","title":{"rendered":"C3Z Washdown Procurement: Verify the IP Claim and Cleaning Duty Separately"},"content":{"rendered":"<article>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table des mati\u00e8res<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Basculer<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.wehopower.com\/fr\/news\/weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning\/#C3Z_Washdown_Procurement_Verify_the_IP_Claim_and_Cleaning_Duty_Separately\" >C3Z Washdown Procurement: Verify the IP Claim and Cleaning Duty Separately<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.wehopower.com\/fr\/news\/weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning\/#Divide_the_machine_into_real_exposure_zones\" >Divide the machine into real exposure zones<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.wehopower.com\/fr\/news\/weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning\/#Write_a_cleaning-duty_specification\" >Write a cleaning-duty specification<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.wehopower.com\/fr\/news\/weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning\/#Separate_ingress_testing_from_chemical_durability\" >Separate ingress testing from chemical durability<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.wehopower.com\/fr\/news\/weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning\/#Make_missing_evidence_a_purchasing_hold_point\" >Make missing evidence a purchasing hold point<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.wehopower.com\/fr\/news\/weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning\/#Define_the_acceptance_test_for_the_assembled_machine\" >Define the acceptance test for the assembled machine<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/fr\/news\/weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning\/#Prepare_the_environmental_RFQ\" >Prepare the environmental RFQ<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.wehopower.com\/fr\/news\/weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning\/#Buyer_questions\" >Buyer questions<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.wehopower.com\/fr\/news\/weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning\/#Is_the_C3Z-D100N_confirmed_as_IP67_by_the_supplied_material\" >Is the C3Z-D100N confirmed as IP67 by the supplied material?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.wehopower.com\/fr\/news\/weho-b2b-362-c3z-photoelectric-sensor-ip-rating-and-washdown-cleaning\/#Does_a_protected_cabinet_automatically_solve_the_problem\" >Does a protected cabinet automatically solve the problem?<\/a><\/li><\/ul><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"C3Z_Washdown_Procurement_Verify_the_IP_Claim_and_Cleaning_Duty_Separately\"><\/span>C3Z Washdown Procurement: Verify the IP Claim and Cleaning Duty Separately<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<figure data-image-role=\"application_a\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/01-application-a-89.png?quality=85&#038;strip=all\" alt=\"C3Z Washdown Procurement: Verify the IP Claim and Cleaning Duty Separately  title=\" width=\"1536\" height=\"1024\" c3z washdown procurement: verify the ip claim and cleaning duty separately title=\"\"><figcaption>An illustrative protected dry location contrasts exposure zones; it does not certify the sensor or hood for washdown or add an IP67 rating.<\/figcaption><\/figure>\n<p>For a washdown machine, procure against the actual cleaning process, not a loosely stated IP rating. Confirm the exact sensor&#8217;s declared ingress protection, water temperature and pressure, detergent exposure, connector\/cable arrangement and post-cleaning conditions. An IP67 claim must not be treated as automatic approval for high-pressure, hot-water or chemical cleaning.<\/p>\n<p>For the pictured C3Z-D100N, the matched specification and <a href=\"https:\/\/www.wehopower.com\/fr\/product\/c3z-d100-square-shaped-one-touch-setting-of-photoelectric-switches-sensor\/\">WEHO product page<\/a> do not state IP67. They specify non-condensing conditions and a PC sensing surface. Therefore this article does not qualify that sample for direct washdown; it explains the evidence an OEM needs before selecting a wet-zone sensor.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Divide_the_machine_into_real_exposure_zones\"><\/span>Divide the machine into real exposure zones<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Identify sensors directly struck by cleaning jets, sensors exposed to splash, and sensors in genuinely protected dry areas. Include the cleaning state, not only normal production. A sensor behind a guard can still be exposed when the guard is opened for cleaning or when water collects around the cable entry.<\/p>\n<p>A protected location may change the exposure, but a cover by itself is not a qualified environmental enclosure. Record the cover\/enclosure arrangement, drainage, optical opening and cleaning access in the machine drawings and validate the completed arrangement. Do not silently assign the enclosure&#8217;s rating to the sensor inside it.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Write_a_cleaning-duty_specification\"><\/span>Write a cleaning-duty specification<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<table>\n<thead>\n<tr>\n<th>Condition to specify<\/th>\n<th>Evidence to request<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Water pressure, temperature, distance and duration<\/td>\n<td>Applicable sensor\/enclosure tests covering the proposed exposure<\/td>\n<\/tr>\n<tr>\n<td>Detergent, disinfectant and concentration<\/td>\n<td>Material and seal compatibility for the actual cleaning agents<\/td>\n<\/tr>\n<tr>\n<td>Hot cleaning followed by cool operation<\/td>\n<td>Condensation and thermal-cycling assessment<\/td>\n<\/tr>\n<tr>\n<td>Cable entry, connectors and service replacement<\/td>\n<td>Ratings and installation instructions for the complete interface<\/td>\n<\/tr>\n<tr>\n<td>Cleaning frequency and maintenance practice<\/td>\n<td>A defined sample endurance\/inspection plan, not a lifetime promise<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure data-image-role=\"product_detail\"><img decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/03-product-detail-85.png?quality=85&#038;strip=all\" alt=\"C3Z Washdown Procurement: Verify the IP Claim and Cleaning Duty Separately  title=\" width=\"1536\" height=\"1024\" c3z washdown procurement: verify the ip claim and cleaning duty separately title=\"\"><figcaption>Original product photographs retain their markings and casing. These views support the illustrated sample identity, not an application test.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Separate_ingress_testing_from_chemical_durability\"><\/span>Separate ingress testing from chemical durability<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Water-test ratings do not identify which detergent can contact a sensing lens or which cleaning temperatures the material tolerates. The original C3Z sheet identifies PC at the sensing surface and operating humidity of 35\u201385% without condensation. It supplies no chemical-compatibility or direct-washdown acceptance record.<\/p>\n<p>Separate an IP67 enclosure claim from a claim for high-pressure cleaning or suitability for food applications. Request the supporting rating, cleaning-duty description and test evidence for the actual sensor. A general specification category or another product&#8217;s test result does not qualify a WEHO sensor.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Make_missing_evidence_a_purchasing_hold_point\"><\/span>Make missing evidence a purchasing hold point<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>If direct cleaning is required, request a model-specific declaration and supporting test conditions before approving the sensor. If the supplier cannot substantiate the exposure, select a qualified alternative or redesign the protected location with the machine integrator. A photograph of a dry installed component is not environmental-test evidence.<\/p>\n<p>Keep the supplier&#8217;s written model\/revision confirmation with the approved sample and machine BOM. For repeat orders, inspect the full model, cable-entry form and source documentation. A visually similar product or an added generic \u201cwaterproof\u201d sticker is not a controlled substitution.<\/p>\n<figure data-image-role=\"application_b\"><img decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/02-application-b-86.png?quality=85&#038;strip=all\" alt=\"C3Z Washdown Procurement: Verify the IP Claim and Cleaning Duty Separately  title=\" width=\"1536\" height=\"1024\" c3z washdown procurement: verify the ip claim and cleaning duty separately title=\"\"><figcaption>A separate dry optical-pocket arrangement illustrates exposure planning; completed-machine environmental acceptance and exact-model ingress evidence remain separate.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Define_the_acceptance_test_for_the_assembled_machine\"><\/span>Define the acceptance test for the assembled machine<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Agree on cleaning exposure and electrical\/optical inspections before the test. Check the sensor and its interface for moisture damage, material change, loose mounting and changed detection behavior using the actual target set. Repeat the relevant present\/absent checks after the specified cleaning cycles and service procedure.<\/p>\n<p>The applicable test plan and pass criteria should be established by the project team. Do not infer a universal cycle count, lifetime or hygienic certification from an ingress code. Keep washdown suitability separate from food-contact or machinery-safety requirements.<\/p>\n<figure data-image-role=\"engineering_context\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/04-engineering-context-89.png?quality=85&#038;strip=all\" alt=\"C3Z Washdown Procurement: Verify the IP Claim and Cleaning Duty Separately  title=\" width=\"1536\" height=\"1024\" c3z washdown procurement: verify the ip claim and cleaning duty separately title=\"\"><figcaption>A source-grounded procurement checklist separates documented component facts from the completed equipment acceptance requirements.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Prepare_the_environmental_RFQ\"><\/span>Prepare the environmental RFQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Send a cleaning-process sheet, sensor position photographs, optical target details, enclosure\/guard drawings, cable arrangement, target market and expected order quantity. <a href=\"https:\/\/www.wehopower.com\/fr\/contact\/\">Ask WEHO for exact-model environmental evidence<\/a> and suitable alternatives. The current C3Z-D100N documents can support its stated dry, non-condensing conditions; additional claims require additional evidence.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Buyer_questions\"><\/span>Buyer questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Is_the_C3Z-D100N_confirmed_as_IP67_by_the_supplied_material\"><\/span>Is the C3Z-D100N confirmed as IP67 by the supplied material?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. That rating is not established by the matched sheet or the verified product page used here. Obtain a model-specific statement before putting IP67 into the purchase specification.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Does_a_protected_cabinet_automatically_solve_the_problem\"><\/span>Does a protected cabinet automatically solve the problem?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. The optical opening, cable entry, drainage, heat and maintenance state still have to be evaluated as a completed installation.<\/p>\n<\/article>","protected":false},"excerpt":{"rendered":"<p>The matched C3Z-D100N material does not establish IP67; define the real exposure and request exact-model evidence before approving a wet zone.<\/p>","protected":false},"author":2,"featured_media":19253,"parent":0,"menu_order":38,"comment_status":"closed","ping_status":"","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,284],"class_list":["post-19256","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-blog","news_category-product-articles","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/fr\/wp-json\/wp\/v2\/news\/19256","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/fr\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/fr\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/fr\/wp-json\/wp\/v2\/comments?post=19256"}],"version-history":[{"count":1,"href":"https:\/\/www.wehopower.com\/fr\/wp-json\/wp\/v2\/news\/19256\/revisions"}],"predecessor-version":[{"id":19629,"href":"https:\/\/www.wehopower.com\/fr\/wp-json\/wp\/v2\/news\/19256\/revisions\/19629"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/fr\/wp-json\/wp\/v2\/media\/19253"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/fr\/wp-json\/wp\/v2\/media?parent=19256"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/fr\/wp-json\/wp\/v2\/news_category?post=19256"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}