{"id":4944,"date":"2024-08-23T13:37:20","date_gmt":"2024-08-23T05:37:20","guid":{"rendered":"https:\/\/ots-testequipment.net\/?p=4944"},"modified":"2024-09-02T16:33:40","modified_gmt":"2024-09-02T08:33:40","slug":"como-testar-um-rele-para-automoveis","status":"publish","type":"post","link":"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/","title":{"rendered":"Como testar um rel\u00e9 autom\u00f3vel?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 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\">\u00cdndice<\/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=\"Alternar o \u00edndice\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/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-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/#Overview_of_Automotive_Relay\" >Vis\u00e3o geral do rel\u00e9 para autom\u00f3veis<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/#Understanding_of_Pins_for_Relay_Testing\" >Compreens\u00e3o dos pinos para teste de rel\u00e9s<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/#How_Do_You_Test_an_Automotive_or_Car_Relay\" >Como \u00e9 que se testa um rel\u00e9 para autom\u00f3veis?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/#1-_Gather_Equipment\" >1- Reunir o equipamento<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/#2-_Setup_Multimeter\" >2- Configura\u00e7\u00e3o do mult\u00edmetro<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/#3-_Test_the_Coil_Pins_85_and_86\" >3- Teste da bobina (pinos 85 e 86)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/#4-_Connect_Coil_to_Battery_Source\" >4- Ligar a bobina \u00e0 fonte da bateria<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/#5-_Check_Continuity_Between_Pins_30_and_87\" >5- Verificar a continuidade entre os pinos 30 e 87<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/#6-_Test_the_Normally_Closed_Pin_Pin_87a\" >6- Teste o Pino Normalmente Fechado (Pino 87a)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/#What_Should_You_Do_if_the_Automotive_Relay_is_Faulty\" >O que deve fazer se o rel\u00e9 autom\u00f3vel estiver avariado?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/#Frequently_Asked_Questions\" >perguntas frequentes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/ots-testequipment.net\/pt\/blog\/how-to-test-an-automotive-relay\/#Conclusion\" >Conclus\u00e3o<\/a><\/li><\/ul><\/nav><\/div>\n<p><span style=\"font-weight: 400;\">Trabalha como eletricista? Ou \u00e9 um entusiasta de autom\u00f3veis que quer verificar o estado do rel\u00e9 do seu ve\u00edculo? Independentemente de quem seja, saber como testar um rel\u00e9 autom\u00f3vel \u00e9 crucial. Ajuda a manter os componentes do autom\u00f3vel a funcionar corretamente.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Os fabricantes utilizam rel\u00e9s de autom\u00f3veis para controlar v\u00e1rios componentes, incluindo luzes, buzinas e limpa para-brisas. No entanto, se os rel\u00e9s funcionarem mal, esses componentes tamb\u00e9m deixar\u00e3o de funcionar. Est\u00e1 a ter problemas com o elemento associado ao rel\u00e9? Est\u00e1 na altura de verificar o estado do rel\u00e9.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">No entanto, sei que verificar e testar esses rel\u00e9s autom\u00f3veis \u00e9 muito complexo e entediante. Mas n\u00e3o precisa de entrar em p\u00e2nico - estou aqui para o ajudar. Este guia ir\u00e1 fornecer-lhe um processo passo a passo para testar rel\u00e9s autom\u00f3veis. Por isso, vamos l\u00e1 p\u00f4r as coisas a mexer!<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Overview_of_Automotive_Relay\"><\/span><b>Vis\u00e3o geral do rel\u00e9 para autom\u00f3veis<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"alignnone  wp-image-4955\" src=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/Overview-of-Automotive-Relay-300x225.webp\" alt=\"Vis\u00e3o geral do rel\u00e9 automotivo\" width=\"500\" height=\"375\" srcset=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/Overview-of-Automotive-Relay-300x225.webp 300w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/Overview-of-Automotive-Relay-768x576.webp 768w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/Overview-of-Automotive-Relay-16x12.webp 16w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/Overview-of-Automotive-Relay.webp 1000w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/p>\n<p><b>Os rel\u00e9s s\u00e3o pequenos interruptores acionados por sinais el\u00e9ctricos. Utilizam pouca eletricidade e funcionam como interruptores para controlar dispositivos com elevado consumo de eletricidade. Estes rel\u00e9s s\u00e3o muito comuns nos autom\u00f3veis e noutros ve\u00edculos. Podem ser \u00fateis para acionar as luzes, as buzinas, os limpa para-brisas e os indicadores de mudan\u00e7a de dire\u00e7\u00e3o dos autom\u00f3veis.<\/b><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">N\u00e3o se esque\u00e7a que os rel\u00e9s n\u00e3o se limitam \u00e0 ind\u00fastria autom\u00f3vel. A sua utiliza\u00e7\u00e3o \u00e9 comum em muitas ind\u00fastrias. Muitos compressores, sistemas de refrigera\u00e7\u00e3o e aparelhos de ar condicionado utilizam-nos. No entanto, vamos concentrar-nos apenas nos rel\u00e9s para autom\u00f3veis. Estes rel\u00e9s s\u00e3o constitu\u00eddos por 4 ou 5 pinos; cinco s\u00e3o os mais comuns.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Estes pinos t\u00eam fun\u00e7\u00f5es diferentes e est\u00e3o assinalados com n\u00fameros. Esses n\u00fameros incluem 30, 85, 86, 87 e 87a. Nunca poder\u00e1 verificar o estado do rel\u00e9 se n\u00e3o compreender estes pinos. Curiosamente, cada rel\u00e9 \u00e9 composto por um pequeno diagrama no seu corpo. Este pequeno diagrama mostra a posi\u00e7\u00e3o destes pinos.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Mesmo que n\u00e3o tenha informa\u00e7\u00f5es, pode compreender vendo o diagrama. Estes rel\u00e9s fazem ou desfazem a liga\u00e7\u00e3o e ligam ou desligam as coisas. Para funcionar, necessitam de uma pequena bateria. Existem rel\u00e9s AC e DC. No entanto, os autom\u00f3veis e outros ve\u00edculos utilizam rel\u00e9s de corrente cont\u00ednua de 12 volts. O seu funcionamento \u00e9 muito suave e n\u00e3o necessita de muita eletricidade.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Understanding_of_Pins_for_Relay_Testing\"><\/span><b>Compreens\u00e3o dos pinos para teste de rel\u00e9s<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"alignnone  wp-image-4956\" src=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/Understanding-of-Pins-for-Relay-Testing-300x225.webp\" alt=\"Compreens\u00e3o dos pinos para ensaios de retransmiss\u00e3o\" width=\"500\" height=\"375\" srcset=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/Understanding-of-Pins-for-Relay-Testing-300x225.webp 300w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/Understanding-of-Pins-for-Relay-Testing-768x576.webp 768w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/Understanding-of-Pins-for-Relay-Testing-16x12.webp 16w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/Understanding-of-Pins-for-Relay-Testing.webp 1000w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Como disse anteriormente, os rel\u00e9s para autom\u00f3veis t\u00eam cinco pinos. Estes pinos s\u00e3o cruciais para fornecer um caminho para a eletricidade fluir de um ponto para outro. Desta forma, desempenham um papel na ativa\u00e7\u00e3o e desativa\u00e7\u00e3o de dispositivos. Compreend\u00ea-los \u00e9 fundamental para testar com sucesso estes rel\u00e9s. Aqui est\u00e1 a lista dos nomes desses pinos:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pino 30 (conhecido como um pino comum)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pino 87 (Pino normalmente aberto)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pino 87a (Pino normalmente fechado)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pinos 85 e 86 (Pinos da bobina devido \u00e0 sua liga\u00e7\u00e3o \u00e0 bobina)<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Se estiver confuso, n\u00e3o se preocupe. Ver\u00e1 um n\u00famero escrito no rel\u00e9 correspondente a cada pino. Por exemplo, ver\u00e1 o n\u00famero 30 com um pino comum. Da mesma forma, os n\u00fameros 85 e 86 est\u00e3o escritos perto dos pinos da bobina. Os pinos mais cr\u00edticos, 85 e 86, est\u00e3o ligados aos terminais positivo e negativo da bateria.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Estes dois pinos s\u00e3o tamb\u00e9m conhecidos como pinos de bobina. Porqu\u00ea? Porque estes pinos est\u00e3o ligados a bobinas que produzem campos magn\u00e9ticos. Quando os pinos 85 e 86 se ligam \u00e0 bateria, o magnetismo \u00e9 produzido devido \u00e0 bobina. Assim, o pino 30 passa a corrente e ativa o rel\u00e9. Quando o rel\u00e9 \u00e9 ativado, a corrente flui para o pino normalmente aberto (87).\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Qualquer coisa (buzina, luz, limpa para-brisas) ligada ao pino 87 come\u00e7ar\u00e1 a funcionar. Quando se desliga a bateria, a bobina deixa de produzir magn\u00e9sio. Consequentemente, o pino 30 deixar\u00e1 de passar a corrente. Assim, o pino 87 desliga-se e parte-se, assim como o dispositivo ligado. O rel\u00e9 fica inativo. A corrente pode fluir para o Pino Normalmente Fechado (87a).\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_Do_You_Test_an_Automotive_or_Car_Relay\"><\/span><b>Como \u00e9 que se testa um rel\u00e9 para autom\u00f3veis?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img decoding=\"async\" class=\"alignnone  wp-image-4954\" src=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/How-Do-You-Test-an-Automotive-or-Car-Relay-300x225.webp\" alt=\"Como \u00e9 que se testa um autom\u00f3vel ou um autorr\u00e1dio\" width=\"500\" height=\"375\" srcset=\"https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/How-Do-You-Test-an-Automotive-or-Car-Relay-300x225.webp 300w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/How-Do-You-Test-an-Automotive-or-Car-Relay-768x576.webp 768w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/How-Do-You-Test-an-Automotive-or-Car-Relay-16x12.webp 16w, https:\/\/ots-testequipment.net\/wp-content\/uploads\/2024\/08\/How-Do-You-Test-an-Automotive-or-Car-Relay.webp 1000w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Compreende o objetivo da funcionalidade destes pinos? Deixe-me fazer um breve resumo do seu funcionamento antes de entrar no processo de teste. Compreender os pinos de funcionamento \u00e9 essencial para os testes.<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Pino 30: <\/b><span style=\"font-weight: 400;\">Actuam como ponto de partida e passam a corrente para outros pinos.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Pinos 85 e 86: <\/b><span style=\"font-weight: 400;\">Liga-se aos terminais positivo e negativo da bateria.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Pino 87 (Pino normalmente aberto): <\/b><span style=\"font-weight: 400;\">Fica ativo quando a bateria \u00e9 ligada aos pinos da bobina.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Pino 87a (Pino normalmente fechado):\u00a0 <\/b><span style=\"font-weight: 400;\">A sua liga\u00e7\u00e3o \u00e9 interrompida quando a bateria \u00e9 ligada. Torna-se inativo com a liga\u00e7\u00e3o da bateria e vice-versa.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">J\u00e1 tem as no\u00e7\u00f5es b\u00e1sicas e n\u00e3o deixou nenhuma confus\u00e3o em mente? Vamos mergulhar fundo e discutir o processo passo a passo de verifica\u00e7\u00e3o dos rel\u00e9s para autom\u00f3veis.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1-_Gather_Equipment\"><\/span><b>1- Reunir o equipamento<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">A verifica\u00e7\u00e3o do rel\u00e9 do autom\u00f3vel requer algumas ferramentas e equipamento. Se n\u00e3o tiver esse equipamento, n\u00e3o conseguir\u00e1 concluir o processo de teste. O aspeto positivo \u00e9 que todos estes<\/span><a href=\"https:\/\/ots-testequipment.net\/pt\/automotive-test-equipment\/\"> <b>equipamento de teste automotivo<\/b><\/a><span style=\"font-weight: 400;\"> s\u00e3o acess\u00edveis. Pode compr\u00e1-los facilmente na loja mais pr\u00f3xima sem ficar sem dinheiro. Eis a sua lista:<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Fonte da bateria<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Mult\u00edmetro<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Clipes de crocodilo<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Diagrama do rel\u00e9<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2-_Setup_Multimeter\"><\/span><b>2- Configura\u00e7\u00e3o do mult\u00edmetro<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">No processo de teste, a defini\u00e7\u00e3o correta do mult\u00edmetro \u00e9 fundamental. Como sabe, este \u00e9 um dispositivo que lhe mostra diferentes par\u00e2metros. Estes incluem tens\u00f5es, corrente, continuidade e resist\u00eancia. Durante este teste, rode o bot\u00e3o para a defini\u00e7\u00e3o de resist\u00eancia, indicada pelo s\u00edmbolo \"\u03a9\".<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Sabe o que \u00e9 a resist\u00eancia? \u00c9 um par\u00e2metro que indica o fluxo de corrente ou eletricidade. Uma resist\u00eancia mais elevada significa que o fluxo de corrente \u00e9 baixo e vice-versa.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3-_Test_the_Coil_Pins_85_and_86\"><\/span><b>3- Teste da bobina (pinos 85 e 86)<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Este passo inicia tecnicamente o processo de teste do rel\u00e9. O mult\u00edmetro \u00e9 composto por duas sondas. Ligue uma sonda ao pino 85 e a segunda ao pino 86. Estes dois pinos est\u00e3o ligados \u00e0 bobina. Agora, veja a leitura da resist\u00eancia no mult\u00edmetro. Isto dir-nos-\u00e1 se os pinos da bobina e a pr\u00f3pria bobina est\u00e3o a funcionar bem.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Suponhamos que o mult\u00edmetro mostra uma resist\u00eancia entre 50 e 200 ohms. A corrente flui, pelo que a bobina e os pinos est\u00e3o bem. Imagine um caso em que o mult\u00edmetro mostra uma resist\u00eancia infinita. Isto indica simplesmente que n\u00e3o h\u00e1 fluxo de corrente. Portanto, deve compreender que existe um problema com a bobina ou com os seus pinos.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4-_Connect_Coil_to_Battery_Source\"><\/span><b>4- Ligar a bobina \u00e0 fonte da bateria<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Uma vez verificada a bobina, \u00e9 altura de verificar os outros pinos e ver se est\u00e3o a funcionar. \u00c9 necess\u00e1rio ligar a pilha \u00e0 bobina para acender o magnetismo. Mas a quest\u00e3o \u00e9 como? Os pinos 85 e 86 ligam-se aos terminais positivo e negativo da bateria. A bobina permanece ligada a estes dois pinos.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Depois de ligar os pinos ao terminal da bateria, a bobina produzir\u00e1 magnetismo. Ap\u00f3s a liga\u00e7\u00e3o, ouvir\u00e1 um som de \"clique\". Isto significa que o sistema est\u00e1 ligado e que a corrente passa pelo pino 30. Este pino 30 passa ainda a corrente pelo pino 87 (pino normalmente aberto). Se n\u00e3o ouvir o \"clique\", isso significa que existe algum problema com o sistema.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5-_Check_Continuity_Between_Pins_30_and_87\"><\/span><b>5- Verificar a continuidade entre os pinos 30 e 87<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Mantenha a bateria ligada com os pinos 85 e 86. Durante este processo, a corrente continuar\u00e1 a fluir para o pino 30. \u00c9 altura de verificar a continuidade entre os pinos 30 e 87. Sabe o que \u00e9 a continuidade? Este par\u00e2metro mostra o caminho da eletricidade ou do fluxo de corrente.  Se a eletricidade puder passar entre dois pontos, existe continuidade, e vice-versa.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Durante a verifica\u00e7\u00e3o da continuidade, mude a defini\u00e7\u00e3o dos mult\u00edmetros de resist\u00eancia para continuidade. Todos os mult\u00edmetros t\u00eam pequenos \u00edcones em forma de sino para indica\u00e7\u00e3o de continuidade. Corrija uma sonda para o pino 30 e a segunda para o pino 87. Assim que ligar as sondas, ouvir\u00e1 um sinal sonoro.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Os mult\u00edmetros mostrar\u00e3o uma leitura de zero. Isto indica que a eletricidade tem o seu caminho para fluir entre dois pontos ou pinos, pelo que n\u00e3o h\u00e1 nada de errado com o rel\u00e9. Por outro lado, se o mult\u00edmetro n\u00e3o emitir um sinal sonoro, isso indica que n\u00e3o h\u00e1 caminho para o fluxo de eletricidade. O mult\u00edmetro apresentar\u00e1 uma leitura de infinito, o que mostra alguns problemas no rel\u00e9.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6-_Test_the_Normally_Closed_Pin_Pin_87a\"><\/span><b>6- Teste o Pino Normalmente Fechado (Pino 87a)<\/b><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Se os pinos 30 e 87 funcionarem bem em termos de fluxo de eletricidade, verifique o pino 87a. \u00c9 necess\u00e1rio desligar a bateria dos pinos 85 e 86 para verificar o pino 87a. Uma vez desligada a bateria, ligar a sonda ao pino 30 e ao pino 87a.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Os mult\u00edmetros emitem um sinal sonoro e mostram leituras zero? Se sim, este pinho tamb\u00e9m est\u00e1 a funcionar bem. Pelo contr\u00e1rio, se n\u00e3o ouvir um sinal sonoro, isso indica que n\u00e3o h\u00e1 caminho para o fluxo de eletricidade. Por outras palavras, h\u00e1 um problema com o pino 87a. N\u00e3o se esque\u00e7a de manter a bateria desligada durante este passo.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><b>Destaque r\u00e1pido:<\/b><span style=\"font-weight: 400;\"> Siga o processo mencionado acima para verificar o estado do rel\u00e9 para autom\u00f3veis. Este processo tamb\u00e9m pode ajudar a verificar todos os rel\u00e9s CC. Se encontrar algum problema em qualquer parte, isso indica que deve substituir o rel\u00e9 por um novo.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Should_You_Do_if_the_Automotive_Relay_is_Faulty\"><\/span><b>O que deve fazer se o rel\u00e9 autom\u00f3vel estiver avariado?<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Durante o teste, pode encontrar problemas em qualquer componente do rel\u00e9. Se n\u00e3o ouvir o clique na bateria de liga\u00e7\u00e3o com o pino 85 ou 86, haver\u00e1 um problema com a bobina. Se a corrente n\u00e3o passar do pino 30 para o 87, o percurso da eletricidade est\u00e1 perturbado. Tudo isto indica que os pinos est\u00e3o defeituosos ou danificados.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Nesse caso, h\u00e1 duas solu\u00e7\u00f5es: reparar a pe\u00e7a defeituosa ou comprar um rel\u00e9 novo. Tenha em aten\u00e7\u00e3o que os rel\u00e9s s\u00e3o geralmente baratos. No entanto, reparar a pe\u00e7a danificada demora muito tempo e a sa\u00edda desejada tamb\u00e9m n\u00e3o \u00e9 garantida. Sugiro que compre um rel\u00e9 novo em caso de problemas. A utiliza\u00e7\u00e3o de rel\u00e9s reparados tamb\u00e9m pode causar problemas no futuro.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span><b>perguntas frequentes<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><b>Como \u00e9 que o rel\u00e9 funciona nos autom\u00f3veis e noutros ve\u00edculos?<\/b><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">O rel\u00e9 funciona atrav\u00e9s de sinais el\u00e9ctricos. Por exemplo, quando se carrega na buzina, o rel\u00e9 recebe um sinal. Como resultado, estabelece ou interrompe liga\u00e7\u00f5es de acordo com o seu sistema.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><b>Como \u00e9 que <\/b><b>ensaio de mec\u00e2nica <\/b><b>rel\u00e9s no sector autom\u00f3vel?<\/b><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">O teste do rel\u00e9 baseia-se na passagem de corrente. Os mec\u00e2nicos verificam o fluxo de corrente em cada fase utilizando mult\u00edmetros. Se o fluxo for \u00f3timo, o rel\u00e9 tamb\u00e9m est\u00e1 em boas condi\u00e7\u00f5es, e vice-versa.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><b>Quais s\u00e3o as utiliza\u00e7\u00f5es dos rel\u00e9s nos autom\u00f3veis?<\/b><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">O rel\u00e9 permite que muitos componentes e dispositivos funcionem sem problemas de acordo com os sinais. Esses componentes incluem buzinas, limpa para-brisas, luzes, sinais de mudan\u00e7a de dire\u00e7\u00e3o, etc... O condutor apenas carrega no bot\u00e3o espec\u00edfico do componente espec\u00edfico e o rel\u00e9 faz o resto.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><b>Conclus\u00e3o<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Os rel\u00e9s para autom\u00f3veis cumprem melhor a sua fun\u00e7\u00e3o em autom\u00f3veis e ve\u00edculos. A sua utiliza\u00e7\u00e3o fez com que diferentes componentes do autom\u00f3vel funcionassem sem problemas. No entanto, quando este rel\u00e9 fica defeituoso, afecta o funcionamento desses componentes.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Imagine que um rel\u00e9 ligado a uma buzina em funcionamento fica avariado. A buzina deixa de funcionar. \u00c9 poss\u00edvel conduzir um autom\u00f3vel sem buzinas a funcionar? Por isso, \u00e9 necess\u00e1rio conhecer o processo de teste para determinar o problema. Expliquei os passos deste processo neste guia para que possa verificar o problema imediatamente sem ter de esperar por um mec\u00e2nico.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Trabalha como eletricista? Ou \u00e9 um entusiasta de autom\u00f3veis que quer verificar o estado do rel\u00e9 do seu ve\u00edculo? Independentemente de quem seja, saber como testar um rel\u00e9 autom\u00f3vel \u00e9 crucial. Ajuda a manter os componentes do autom\u00f3vel a funcionar corretamente.   Os fabricantes utilizam rel\u00e9s autom\u00f3veis para controlar v\u00e1rios componentes, incluindo luzes,...<\/p>","protected":false},"author":13,"featured_media":4945,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4944","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Test an Automotive Relay?<\/title>\n<meta name=\"description\" content=\"How to test an automotive relay and find the fault? Don&#039;t get tangled up. 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N\u00e3o se enrole. Leia este guia e compreenda o processo em passos simples.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/ots-testequipment.net\/pt\/blog\/como-testar-um-rele-para-automoveis\/","og_locale":"pt_PT","og_type":"article","og_title":"How to Test an Automotive Relay?","og_description":"How to test an automotive relay and find the fault? Don't get tangled up. 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