{"id":1875,"date":"2026-04-13T09:02:36","date_gmt":"2026-04-13T09:02:36","guid":{"rendered":"https:\/\/industrialsafetysensor.com\/?p=1875"},"modified":"2026-09-11T02:31:11","modified_gmt":"2026-09-11T02:31:11","slug":"elevator-light-curtain","status":"publish","type":"post","link":"https:\/\/industrialsafetysensor.com\/pt\/blog\/elevator-light-curtain\/","title":{"rendered":"Cortina de luz do elevador: o que todo engenheiro de eleva\u00e7\u00e3o e operador de constru\u00e7\u00e3o precisa saber"},"content":{"rendered":"\n<style>\r\n.cch-elevator-hero {\r\n  box-sizing: border-box;\r\n  background: #f5f7f8;\r\n  padding: 82px 28px 74px;\r\n  border-bottom: 1px solid #dde5e9;\r\n}\r\n\r\n.cch-elevator-hero * {\r\n  box-sizing: border-box;\r\n}\r\n\r\n.cch-elevator-hero-inner {\r\n  max-width: 1020px;\r\n  margin: 0 auto;\r\n}\r\n\r\n\/* Article metadata *\/\r\n.cch-elevator-meta {\r\n  display: flex;\r\n  flex-wrap: wrap;\r\n  align-items: center;\r\n  gap: 9px 14px;\r\n  margin-bottom: 29px;\r\n  color: #6d808b;\r\n  font-size: 12px;\r\n  line-height: 1.5;\r\n}\r\n\r\n.cch-elevator-meta-primary {\r\n  color: #128fc9;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-meta-dot {\r\n  width: 3px;\r\n  height: 3px;\r\n  border-radius: 50%;\r\n  background: #9daeb7;\r\n}\r\n\r\n\/* Hero layout *\/\r\n.cch-elevator-hero-grid {\r\n  display: grid;\r\n  grid-template-columns: minmax(0, 1.65fr) minmax(250px, .65fr);\r\n  gap: 56px;\r\n  align-items: start;\r\n}\r\n\r\n.cch-elevator-hero-main h1 {\r\n  max-width: 760px;\r\n  margin: 0;\r\n  color: #102431;\r\n  font-size: clamp(43px, 5.2vw, 66px);\r\n  line-height: 1.06;\r\n  font-weight: 820;\r\n  letter-spacing: -.04em;\r\n}\r\n\r\n.cch-elevator-standfirst {\r\n  max-width: 760px;\r\n  margin: 29px 0 0;\r\n  color: #445e6b;\r\n  font-size: 20px;\r\n  line-height: 1.72;\r\n}\r\n\r\n.cch-elevator-intro {\r\n  max-width: 760px;\r\n  margin-top: 30px;\r\n  color: #586d78;\r\n  font-size: 15px;\r\n  line-height: 1.88;\r\n}\r\n\r\n.cch-elevator-intro p {\r\n  margin: 0 0 18px;\r\n}\r\n\r\n.cch-elevator-intro p:last-child {\r\n  margin-bottom: 0;\r\n}\r\n\r\n.cch-elevator-intro strong {\r\n  color: #173041;\r\n}\r\n\r\n\/* Scope sidebar *\/\r\n.cch-elevator-scope {\r\n  padding-top: 7px;\r\n}\r\n\r\n.cch-elevator-scope-title {\r\n  padding-bottom: 12px;\r\n  border-bottom: 2px solid #173746;\r\n  color: #173041;\r\n  font-size: 11px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .09em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-scope-list {\r\n  margin: 0;\r\n  padding: 0;\r\n  list-style: none;\r\n}\r\n\r\n.cch-elevator-scope-item {\r\n  padding: 15px 0;\r\n  border-bottom: 1px solid #d8e2e7;\r\n}\r\n\r\n.cch-elevator-scope-label {\r\n  display: block;\r\n  margin-bottom: 4px;\r\n  color: #758791;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n  letter-spacing: .07em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-scope-value {\r\n  color: #173041;\r\n  font-size: 14px;\r\n  line-height: 1.6;\r\n  font-weight: 700;\r\n}\r\n\r\n\/* Key distinction *\/\r\n.cch-elevator-distinction {\r\n  margin-top: 46px;\r\n  padding: 25px 0 0 23px;\r\n  border-top: 1px solid #d7e1e6;\r\n  border-left: 3px solid #129fe9;\r\n}\r\n\r\n.cch-elevator-distinction-label {\r\n  margin-bottom: 7px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-distinction p {\r\n  max-width: 850px;\r\n  margin: 0;\r\n  color: #506875;\r\n  font-size: 14px;\r\n  line-height: 1.82;\r\n}\r\n\r\n.cch-elevator-distinction strong {\r\n  color: #173041;\r\n}\r\n\r\n\/* Reading map *\/\r\n.cch-elevator-map {\r\n  margin-top: 40px;\r\n  padding-top: 25px;\r\n  border-top: 1px solid #d7e1e6;\r\n}\r\n\r\n.cch-elevator-map-label {\r\n  margin-bottom: 14px;\r\n  color: #173041;\r\n  font-size: 11px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .08em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-map-list {\r\n  display: grid;\r\n  grid-template-columns: repeat(4, minmax(0,1fr));\r\n  gap: 0;\r\n  border-top: 1px solid #dbe4e8;\r\n  border-bottom: 1px solid #dbe4e8;\r\n}\r\n\r\n.cch-elevator-map-item {\r\n  padding: 17px 18px 18px 0;\r\n  border-right: 1px solid #dbe4e8;\r\n}\r\n\r\n.cch-elevator-map-item:not(:first-child) {\r\n  padding-left: 18px;\r\n}\r\n\r\n.cch-elevator-map-item:last-child {\r\n  border-right: 0;\r\n}\r\n\r\n.cch-elevator-map-num {\r\n  display: block;\r\n  margin-bottom: 5px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n}\r\n\r\n.cch-elevator-map-text {\r\n  color: #566c78;\r\n  font-size: 13px;\r\n  line-height: 1.65;\r\n}\r\n\r\n.cch-elevator-map-text strong {\r\n  color: #173041;\r\n}\r\n\r\n@media (max-width: 820px) {\r\n  .cch-elevator-hero {\r\n    padding: 60px 20px 58px;\r\n  }\r\n\r\n  .cch-elevator-hero-grid {\r\n    grid-template-columns: 1fr;\r\n    gap: 38px;\r\n  }\r\n\r\n  .cch-elevator-hero-main h1 {\r\n    font-size: 40px;\r\n  }\r\n\r\n  .cch-elevator-standfirst {\r\n    font-size: 18px;\r\n  }\r\n\r\n  .cch-elevator-scope {\r\n    padding-top: 0;\r\n  }\r\n\r\n  .cch-elevator-map-list {\r\n    grid-template-columns: 1fr;\r\n  }\r\n\r\n  .cch-elevator-map-item {\r\n    padding: 15px 0;\r\n    border-right: 0;\r\n    border-bottom: 1px solid #dbe4e8;\r\n  }\r\n\r\n  .cch-elevator-map-item:not(:first-child) {\r\n    padding-left: 0;\r\n  }\r\n\r\n  .cch-elevator-map-item:last-child {\r\n    border-bottom: 0;\r\n  }\r\n\r\n  .cch-elevator-distinction {\r\n    padding-left: 18px;\r\n  }\r\n}\r\n<\/style>\r\n\r\n<section class=\"cch-elevator-hero\">\r\n\r\n  <div class=\"cch-elevator-hero-inner\">\r\n\r\n    <div class=\"cch-elevator-meta\">\r\n\r\n      <span class=\"cch-elevator-meta-primary\">\r\n        Lift Engineering Guide\r\n      <\/span>\r\n\r\n      <span class=\"cch-elevator-meta-dot\"><\/span>\r\n\r\n      <span>\r\n        Door Reopening Devices\r\n      <\/span>\r\n\r\n      <span class=\"cch-elevator-meta-dot\"><\/span>\r\n\r\n      <span>\r\n        Codes &amp; Selection\r\n      <\/span>\r\n\r\n      <span class=\"cch-elevator-meta-dot\"><\/span>\r\n\r\n      <span>\r\n        Updated September 2026\r\n      <\/span>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-hero-grid\">\r\n\r\n      <div class=\"cch-elevator-hero-main\">\r\n\r\n        <h1>\r\n          Elevator Door Light Curtains:\r\n          How They Work, Codes &amp; Selection\r\n        <\/h1>\r\n\r\n        <p class=\"cch-elevator-standfirst\">\r\n          Elevator door light curtains create a non-contact optical detection\r\n          field across the doorway so that the door system can detect a person\r\n          or object and respond according to the lift&#8217;s door-reopening logic.\r\n        <\/p>\r\n\r\n        <div class=\"cch-elevator-intro\">\r\n\r\n          <p>\r\n            They are widely used as part of passenger and goods-passenger lift\r\n            door systems, especially where wider obstruction detection is\r\n            preferred over a single photocell beam or contact-based door edge.\r\n          <\/p>\r\n\r\n          <p>\r\n            Selecting or replacing one, however, requires more than matching\r\n            the physical length of the sensor. The\r\n            <strong>door operator, detection coverage, electrical interface,\r\n            applicable lift code and commissioning requirements<\/strong>\r\n            all need to be considered together.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <aside class=\"cch-elevator-scope\">\r\n\r\n        <div class=\"cch-elevator-scope-title\">\r\n          Guide Scope\r\n        <\/div>\r\n\r\n        <ul class=\"cch-elevator-scope-list\">\r\n\r\n          <li class=\"cch-elevator-scope-item\">\r\n            <span class=\"cch-elevator-scope-label\">\r\n              Device\r\n            <\/span>\r\n            <span class=\"cch-elevator-scope-value\">\r\n              Elevator door obstruction detection\r\n            <\/span>\r\n          <\/li>\r\n\r\n          <li class=\"cch-elevator-scope-item\">\r\n            <span class=\"cch-elevator-scope-label\">\r\n              Applications\r\n            <\/span>\r\n            <span class=\"cch-elevator-scope-value\">\r\n              Passenger and goods-passenger lift doors\r\n            <\/span>\r\n          <\/li>\r\n\r\n          <li class=\"cch-elevator-scope-item\">\r\n            <span class=\"cch-elevator-scope-label\">\r\n              Topics\r\n            <\/span>\r\n            <span class=\"cch-elevator-scope-value\">\r\n              Operation, codes, replacement and troubleshooting\r\n            <\/span>\r\n          <\/li>\r\n\r\n          <li class=\"cch-elevator-scope-item\">\r\n            <span class=\"cch-elevator-scope-label\">\r\n              Region Context\r\n            <\/span>\r\n            <span class=\"cch-elevator-scope-value\">\r\n              Europe and North America\r\n            <\/span>\r\n          <\/li>\r\n\r\n        <\/ul>\r\n\r\n      <\/aside>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-distinction\">\r\n\r\n      <div class=\"cch-elevator-distinction-label\">\r\n        Important Distinction\r\n      <\/div>\r\n\r\n      <p>\r\n        <strong>An elevator door light curtain should not automatically be\r\n        treated as the same product category as an IEC 61496 machinery safety\r\n        light curtain.<\/strong>\r\n        Elevator door reopening devices operate within lift-specific door\r\n        systems and code requirements. Machinery safety light curtains used on\r\n        presses, robot cells or industrial production equipment are selected\r\n        under a different safeguarding framework.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-map\">\r\n\r\n      <div class=\"cch-elevator-map-label\">\r\n        What This Guide Covers\r\n      <\/div>\r\n\r\n      <div class=\"cch-elevator-map-list\">\r\n\r\n        <div class=\"cch-elevator-map-item\">\r\n          <span class=\"cch-elevator-map-num\">01<\/span>\r\n          <div class=\"cch-elevator-map-text\">\r\n            <strong>How the optical detection field works<\/strong>\r\n            with the elevator door system.\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-map-item\">\r\n          <span class=\"cch-elevator-map-num\">02<\/span>\r\n          <div class=\"cch-elevator-map-text\">\r\n            <strong>Light curtain vs photocell vs safety edge<\/strong>\r\n            and the role of each technology.\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-map-item\">\r\n          <span class=\"cch-elevator-map-num\">03<\/span>\r\n          <div class=\"cch-elevator-map-text\">\r\n            <strong>2026 lift-code context<\/strong>\r\n            in Europe and North America.\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-map-item\">\r\n          <span class=\"cch-elevator-map-num\">04<\/span>\r\n          <div class=\"cch-elevator-map-text\">\r\n            <strong>What to verify before replacement or retrofit<\/strong>\r\n            rather than relying on physical size alone.\r\n          <\/div>\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n  <\/div>\r\n\r\n<\/section>\n\n\n\n<style>\r\n.cch-elevator-hero {\r\n  box-sizing: border-box;\r\n  background: #f5f7f8;\r\n  padding: 82px 28px 74px;\r\n  border-bottom: 1px solid #dde5e9;\r\n}\r\n\r\n.cch-elevator-hero * {\r\n  box-sizing: border-box;\r\n}\r\n\r\n.cch-elevator-hero-inner {\r\n  max-width: 1020px;\r\n  margin: 0 auto;\r\n}\r\n\r\n\/* Article metadata *\/\r\n.cch-elevator-meta {\r\n  display: flex;\r\n  flex-wrap: wrap;\r\n  align-items: center;\r\n  gap: 9px 14px;\r\n  margin-bottom: 29px;\r\n  color: #6d808b;\r\n  font-size: 12px;\r\n  line-height: 1.5;\r\n}\r\n\r\n.cch-elevator-meta-primary {\r\n  color: #128fc9;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-meta-dot {\r\n  width: 3px;\r\n  height: 3px;\r\n  border-radius: 50%;\r\n  background: #9daeb7;\r\n}\r\n\r\n\/* Hero layout *\/\r\n.cch-elevator-hero-grid {\r\n  display: grid;\r\n  grid-template-columns: minmax(0, 1.65fr) minmax(250px, .65fr);\r\n  gap: 56px;\r\n  align-items: start;\r\n}\r\n\r\n.cch-elevator-hero-main h1 {\r\n  max-width: 760px;\r\n  margin: 0;\r\n  color: #102431;\r\n  font-size: clamp(43px, 5.2vw, 66px);\r\n  line-height: 1.06;\r\n  font-weight: 820;\r\n  letter-spacing: -.04em;\r\n}\r\n\r\n.cch-elevator-standfirst {\r\n  max-width: 760px;\r\n  margin: 29px 0 0;\r\n  color: #445e6b;\r\n  font-size: 20px;\r\n  line-height: 1.72;\r\n}\r\n\r\n.cch-elevator-intro {\r\n  max-width: 760px;\r\n  margin-top: 30px;\r\n  color: #586d78;\r\n  font-size: 15px;\r\n  line-height: 1.88;\r\n}\r\n\r\n.cch-elevator-intro p {\r\n  margin: 0 0 18px;\r\n}\r\n\r\n.cch-elevator-intro p:last-child {\r\n  margin-bottom: 0;\r\n}\r\n\r\n.cch-elevator-intro strong {\r\n  color: #173041;\r\n}\r\n\r\n\/* Scope sidebar *\/\r\n.cch-elevator-scope {\r\n  padding-top: 7px;\r\n}\r\n\r\n.cch-elevator-scope-title {\r\n  padding-bottom: 12px;\r\n  border-bottom: 2px solid #173746;\r\n  color: #173041;\r\n  font-size: 11px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .09em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-scope-list {\r\n  margin: 0;\r\n  padding: 0;\r\n  list-style: none;\r\n}\r\n\r\n.cch-elevator-scope-item {\r\n  padding: 15px 0;\r\n  border-bottom: 1px solid #d8e2e7;\r\n}\r\n\r\n.cch-elevator-scope-label {\r\n  display: block;\r\n  margin-bottom: 4px;\r\n  color: #758791;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n  letter-spacing: .07em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-scope-value {\r\n  color: #173041;\r\n  font-size: 14px;\r\n  line-height: 1.6;\r\n  font-weight: 700;\r\n}\r\n\r\n\/* Key distinction *\/\r\n.cch-elevator-distinction {\r\n  margin-top: 46px;\r\n  padding: 25px 0 0 23px;\r\n  border-top: 1px solid #d7e1e6;\r\n  border-left: 3px solid #129fe9;\r\n}\r\n\r\n.cch-elevator-distinction-label {\r\n  margin-bottom: 7px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-distinction p {\r\n  max-width: 850px;\r\n  margin: 0;\r\n  color: #506875;\r\n  font-size: 14px;\r\n  line-height: 1.82;\r\n}\r\n\r\n.cch-elevator-distinction strong {\r\n  color: #173041;\r\n}\r\n\r\n\/* Reading map *\/\r\n.cch-elevator-map {\r\n  margin-top: 40px;\r\n  padding-top: 25px;\r\n  border-top: 1px solid #d7e1e6;\r\n}\r\n\r\n.cch-elevator-map-label {\r\n  margin-bottom: 14px;\r\n  color: #173041;\r\n  font-size: 11px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .08em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-map-list {\r\n  display: grid;\r\n  grid-template-columns: repeat(4, minmax(0,1fr));\r\n  gap: 0;\r\n  border-top: 1px solid #dbe4e8;\r\n  border-bottom: 1px solid #dbe4e8;\r\n}\r\n\r\n.cch-elevator-map-item {\r\n  padding: 17px 18px 18px 0;\r\n  border-right: 1px solid #dbe4e8;\r\n}\r\n\r\n.cch-elevator-map-item:not(:first-child) {\r\n  padding-left: 18px;\r\n}\r\n\r\n.cch-elevator-map-item:last-child {\r\n  border-right: 0;\r\n}\r\n\r\n.cch-elevator-map-num {\r\n  display: block;\r\n  margin-bottom: 5px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n}\r\n\r\n.cch-elevator-map-text {\r\n  color: #566c78;\r\n  font-size: 13px;\r\n  line-height: 1.65;\r\n}\r\n\r\n.cch-elevator-map-text strong {\r\n  color: #173041;\r\n}\r\n\r\n@media (max-width: 820px) {\r\n  .cch-elevator-hero {\r\n    padding: 60px 20px 58px;\r\n  }\r\n\r\n  .cch-elevator-hero-grid {\r\n    grid-template-columns: 1fr;\r\n    gap: 38px;\r\n  }\r\n\r\n  .cch-elevator-hero-main h1 {\r\n    font-size: 40px;\r\n  }\r\n\r\n  .cch-elevator-standfirst {\r\n    font-size: 18px;\r\n  }\r\n\r\n  .cch-elevator-scope {\r\n    padding-top: 0;\r\n  }\r\n\r\n  .cch-elevator-map-list {\r\n    grid-template-columns: 1fr;\r\n  }\r\n\r\n  .cch-elevator-map-item {\r\n    padding: 15px 0;\r\n    border-right: 0;\r\n    border-bottom: 1px solid #dbe4e8;\r\n  }\r\n\r\n  .cch-elevator-map-item:not(:first-child) {\r\n    padding-left: 0;\r\n  }\r\n\r\n  .cch-elevator-map-item:last-child {\r\n    border-bottom: 0;\r\n  }\r\n\r\n  .cch-elevator-distinction {\r\n    padding-left: 18px;\r\n  }\r\n}\r\n<\/style>\r\n\r\n<section class=\"cch-elevator-hero\">\r\n\r\n  <div class=\"cch-elevator-hero-inner\">\r\n\r\n    <div class=\"cch-elevator-meta\">\r\n\r\n      <span class=\"cch-elevator-meta-primary\">\r\n        Lift Engineering Guide\r\n      <\/span>\r\n\r\n      <span class=\"cch-elevator-meta-dot\"><\/span>\r\n\r\n      <span>\r\n        Door Reopening Devices\r\n      <\/span>\r\n\r\n      <span class=\"cch-elevator-meta-dot\"><\/span>\r\n\r\n      <span>\r\n        Codes &amp; Selection\r\n      <\/span>\r\n\r\n      <span class=\"cch-elevator-meta-dot\"><\/span>\r\n\r\n      <span>\r\n        Updated September 2026\r\n      <\/span>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-hero-grid\">\r\n\r\n      <div class=\"cch-elevator-hero-main\">\r\n\r\n        <h1>\r\n          Elevator Door Light Curtains:\r\n          How They Work, Codes &amp; Selection\r\n        <\/h1>\r\n\r\n        <p class=\"cch-elevator-standfirst\">\r\n          Elevator door light curtains create a non-contact optical detection\r\n          field across the doorway so that the door system can detect a person\r\n          or object and respond according to the lift&#8217;s door-reopening logic.\r\n        <\/p>\r\n\r\n        <div class=\"cch-elevator-intro\">\r\n\r\n          <p>\r\n            They are widely used as part of passenger and goods-passenger lift\r\n            door systems, especially where wider obstruction detection is\r\n            preferred over a single photocell beam or contact-based door edge.\r\n          <\/p>\r\n\r\n          <p>\r\n            Selecting or replacing one, however, requires more than matching\r\n            the physical length of the sensor. The\r\n            <strong>door operator, detection coverage, electrical interface,\r\n            applicable lift code and commissioning requirements<\/strong>\r\n            all need to be considered together.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <aside class=\"cch-elevator-scope\">\r\n\r\n        <div class=\"cch-elevator-scope-title\">\r\n          Guide Scope\r\n        <\/div>\r\n\r\n        <ul class=\"cch-elevator-scope-list\">\r\n\r\n          <li class=\"cch-elevator-scope-item\">\r\n            <span class=\"cch-elevator-scope-label\">\r\n              Device\r\n            <\/span>\r\n            <span class=\"cch-elevator-scope-value\">\r\n              Elevator door obstruction detection\r\n            <\/span>\r\n          <\/li>\r\n\r\n          <li class=\"cch-elevator-scope-item\">\r\n            <span class=\"cch-elevator-scope-label\">\r\n              Applications\r\n            <\/span>\r\n            <span class=\"cch-elevator-scope-value\">\r\n              Passenger and goods-passenger lift doors\r\n            <\/span>\r\n          <\/li>\r\n\r\n          <li class=\"cch-elevator-scope-item\">\r\n            <span class=\"cch-elevator-scope-label\">\r\n              Topics\r\n            <\/span>\r\n            <span class=\"cch-elevator-scope-value\">\r\n              Operation, codes, replacement and troubleshooting\r\n            <\/span>\r\n          <\/li>\r\n\r\n          <li class=\"cch-elevator-scope-item\">\r\n            <span class=\"cch-elevator-scope-label\">\r\n              Region Context\r\n            <\/span>\r\n            <span class=\"cch-elevator-scope-value\">\r\n              Europe and North America\r\n            <\/span>\r\n          <\/li>\r\n\r\n        <\/ul>\r\n\r\n      <\/aside>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-distinction\">\r\n\r\n      <div class=\"cch-elevator-distinction-label\">\r\n        Important Distinction\r\n      <\/div>\r\n\r\n      <p>\r\n        <strong>An elevator door light curtain should not automatically be\r\n        treated as the same product category as an IEC 61496 machinery safety\r\n        light curtain.<\/strong>\r\n        Elevator door reopening devices operate within lift-specific door\r\n        systems and code requirements. Machinery safety light curtains used on\r\n        presses, robot cells or industrial production equipment are selected\r\n        under a different safeguarding framework.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-map\">\r\n\r\n      <div class=\"cch-elevator-map-label\">\r\n        What This Guide Covers\r\n      <\/div>\r\n\r\n      <div class=\"cch-elevator-map-list\">\r\n\r\n        <div class=\"cch-elevator-map-item\">\r\n          <span class=\"cch-elevator-map-num\">01<\/span>\r\n          <div class=\"cch-elevator-map-text\">\r\n            <strong>How the optical detection field works<\/strong>\r\n            with the elevator door system.\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-map-item\">\r\n          <span class=\"cch-elevator-map-num\">02<\/span>\r\n          <div class=\"cch-elevator-map-text\">\r\n            <strong>Light curtain vs photocell vs safety edge<\/strong>\r\n            and the role of each technology.\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-map-item\">\r\n          <span class=\"cch-elevator-map-num\">03<\/span>\r\n          <div class=\"cch-elevator-map-text\">\r\n            <strong>2026 lift-code context<\/strong>\r\n            in Europe and North America.\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-map-item\">\r\n          <span class=\"cch-elevator-map-num\">04<\/span>\r\n          <div class=\"cch-elevator-map-text\">\r\n            <strong>What to verify before replacement or retrofit<\/strong>\r\n            rather than relying on physical size alone.\r\n          <\/div>\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n  <\/div>\r\n\r\n<\/section>\n\n\n\n<style>\r\n.cch-elevator-compare {\r\n  box-sizing: border-box;\r\n  background: #f7f9fa;\r\n  padding: 76px 28px 82px;\r\n  border-top: 1px solid #e2e9ed;\r\n  border-bottom: 1px solid #e2e9ed;\r\n}\r\n\r\n.cch-elevator-compare * {\r\n  box-sizing: border-box;\r\n}\r\n\r\n.cch-elevator-compare-inner {\r\n  max-width: 920px;\r\n  margin: 0 auto;\r\n}\r\n\r\n.cch-elevator-compare-number {\r\n  margin-bottom: 14px;\r\n  color: #129fe9;\r\n  font-size: 11px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .11em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-compare h2 {\r\n  margin: 0;\r\n  color: #102431;\r\n  font-size: clamp(30px, 4vw, 44px);\r\n  line-height: 1.18;\r\n  font-weight: 800;\r\n  letter-spacing: -.025em;\r\n}\r\n\r\n.cch-elevator-compare-lead {\r\n  margin: 22px 0 0;\r\n  color: #4f6572;\r\n  font-size: 18px;\r\n  line-height: 1.8;\r\n}\r\n\r\n.cch-elevator-compare-prose {\r\n  margin-top: 32px;\r\n  color: #526875;\r\n  font-size: 16px;\r\n  line-height: 1.88;\r\n}\r\n\r\n.cch-elevator-compare-prose p {\r\n  margin: 0 0 22px;\r\n}\r\n\r\n.cch-elevator-compare-prose p:last-child {\r\n  margin-bottom: 0;\r\n}\r\n\r\n.cch-elevator-compare-prose strong {\r\n  color: #173041;\r\n}\r\n\r\n.cch-elevator-compare-prose h3 {\r\n  margin: 40px 0 14px;\r\n  color: #173041;\r\n  font-size: 22px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n}\r\n\r\n\/* Comparison table *\/\r\n.cch-elevator-compare-table-wrap {\r\n  overflow-x: auto;\r\n  margin-top: 38px;\r\n  background: #ffffff;\r\n  border-top: 2px solid #173746;\r\n  border-bottom: 1px solid #d7e1e6;\r\n}\r\n\r\n.cch-elevator-compare-table {\r\n  width: 100%;\r\n  min-width: 760px;\r\n  border-collapse: collapse;\r\n}\r\n\r\n.cch-elevator-compare-table th,\r\n.cch-elevator-compare-table td {\r\n  padding: 18px 15px;\r\n  border-bottom: 1px solid #e0e7eb;\r\n  text-align: left;\r\n  vertical-align: top;\r\n}\r\n\r\n.cch-elevator-compare-table tr:last-child td {\r\n  border-bottom: 0;\r\n}\r\n\r\n.cch-elevator-compare-table th {\r\n  color: #173041;\r\n  background: #ffffff;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .06em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-compare-table td {\r\n  color: #566c78;\r\n  font-size: 14px;\r\n  line-height: 1.72;\r\n}\r\n\r\n.cch-elevator-compare-table td:first-child {\r\n  width: 185px;\r\n  color: #173041;\r\n  font-weight: 800;\r\n}\r\n\r\n\/* Technology explanations *\/\r\n.cch-elevator-compare-list {\r\n  margin-top: 42px;\r\n  border-top: 1px solid #d8e2e7;\r\n}\r\n\r\n.cch-elevator-compare-item {\r\n  display: grid;\r\n  grid-template-columns: 180px 1fr;\r\n  gap: 28px;\r\n  padding: 25px 0;\r\n  border-bottom: 1px solid #dfe7eb;\r\n}\r\n\r\n.cch-elevator-compare-item-title {\r\n  color: #173041;\r\n  font-size: 15px;\r\n  line-height: 1.5;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-compare-item-text {\r\n  color: #586e7a;\r\n  font-size: 14px;\r\n  line-height: 1.8;\r\n}\r\n\r\n.cch-elevator-compare-item-text strong {\r\n  color: #173041;\r\n}\r\n\r\n\/* Selection note *\/\r\n.cch-elevator-compare-selection {\r\n  margin-top: 42px;\r\n  padding-top: 29px;\r\n  border-top: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-compare-selection-label {\r\n  margin-bottom: 9px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-compare-selection h3 {\r\n  margin: 0;\r\n  color: #173041;\r\n  font-size: 22px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-compare-selection p {\r\n  margin: 12px 0 0;\r\n  color: #526875;\r\n  font-size: 15px;\r\n  line-height: 1.82;\r\n}\r\n\r\n\/* Pull quote *\/\r\n.cch-elevator-compare-quote {\r\n  margin: 40px 0 0;\r\n  padding-left: 23px;\r\n  border-left: 3px solid #129fe9;\r\n}\r\n\r\n.cch-elevator-compare-quote p {\r\n  margin: 0;\r\n  color: #173041;\r\n  font-size: 20px;\r\n  line-height: 1.62;\r\n  font-weight: 700;\r\n}\r\n\r\n\/* Caution note *\/\r\n.cch-elevator-compare-note {\r\n  margin-top: 34px;\r\n  padding: 23px 25px;\r\n  background: #ffffff;\r\n  border: 1px solid #dfe7eb;\r\n}\r\n\r\n.cch-elevator-compare-note-label {\r\n  margin-bottom: 8px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-compare-note strong {\r\n  display: block;\r\n  margin-bottom: 7px;\r\n  color: #173041;\r\n  font-size: 16px;\r\n  line-height: 1.5;\r\n}\r\n\r\n.cch-elevator-compare-note p {\r\n  margin: 0;\r\n  color: #526875;\r\n  font-size: 14px;\r\n  line-height: 1.78;\r\n}\r\n\r\n@media (max-width: 767px) {\r\n  .cch-elevator-compare {\r\n    padding: 58px 20px 66px;\r\n  }\r\n\r\n  .cch-elevator-compare h2 {\r\n    font-size: 32px;\r\n  }\r\n\r\n  .cch-elevator-compare-lead {\r\n    font-size: 17px;\r\n  }\r\n\r\n  .cch-elevator-compare-prose {\r\n    font-size: 15px;\r\n    line-height: 1.82;\r\n  }\r\n\r\n  .cch-elevator-compare-item {\r\n    grid-template-columns: 1fr;\r\n    gap: 6px;\r\n  }\r\n\r\n  .cch-elevator-compare-quote {\r\n    padding-left: 18px;\r\n  }\r\n\r\n  .cch-elevator-compare-quote p {\r\n    font-size: 18px;\r\n  }\r\n\r\n  .cch-elevator-compare-note {\r\n    padding: 20px 19px;\r\n  }\r\n}\r\n<\/style>\r\n\r\n<section class=\"cch-elevator-compare\">\r\n\r\n  <div class=\"cch-elevator-compare-inner\">\r\n\r\n    <div class=\"cch-elevator-compare-number\">\r\n      03 \u00b7 Door Reopening Technologies\r\n    <\/div>\r\n\r\n    <h2>\r\n      Elevator Light Curtain vs Photocell vs Mechanical Safety Edge\r\n    <\/h2>\r\n\r\n    <p class=\"cch-elevator-compare-lead\">\r\n      Elevator door systems have used several different methods to detect\r\n      passengers or objects in the doorway. The main difference is how much of\r\n      the opening is monitored and whether physical contact is required before\r\n      the device reacts.\r\n    <\/p>\r\n\r\n    <div class=\"cch-elevator-compare-prose\">\r\n\r\n      <p>\r\n        A single photocell, a mechanical safety edge and a multi-beam light\r\n        curtain can all be part of a door-reopening strategy, but they detect\r\n        obstructions in different ways.\r\n      <\/p>\r\n\r\n      <p>\r\n        None of these technologies should be judged only by whether it is\r\n        \u201colder\u201d or \u201cnewer.\u201d Suitability depends on the\r\n        <strong>lift design, applicable code, existing door system, required\r\n        detection coverage and authority having jurisdiction<\/strong>.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-compare-table-wrap\">\r\n\r\n      <table class=\"cch-elevator-compare-table\">\r\n\r\n        <thead>\r\n          <tr>\r\n            <th>Technology<\/th>\r\n            <th>Detection Method<\/th>\r\n            <th>Contact Required?<\/th>\r\n            <th>Typical Characteristic<\/th>\r\n          <\/tr>\r\n        <\/thead>\r\n\r\n        <tbody>\r\n\r\n          <tr>\r\n            <td>Photocell<\/td>\r\n            <td>\r\n              One or a limited number of optical beams monitor specific points\r\n              across the doorway.\r\n            <\/td>\r\n            <td>No<\/td>\r\n            <td>\r\n              Simple non-contact obstruction detection, but coverage is limited\r\n              to the monitored beam positions.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n          <tr>\r\n            <td>Mechanical Safety Edge<\/td>\r\n            <td>\r\n              A pressure-sensitive or mechanically actuated edge reacts when\r\n              the closing door contacts an obstruction.\r\n            <\/td>\r\n            <td>Yes<\/td>\r\n            <td>\r\n              Contact-based detection at the door edge rather than optical\r\n              monitoring across the full opening.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n          <tr>\r\n            <td>Elevator Door Light Curtain<\/td>\r\n            <td>\r\n              Multiple optical paths create a wider non-contact detection field\r\n              across the doorway.\r\n            <\/td>\r\n            <td>No<\/td>\r\n            <td>\r\n              Broader optical coverage at multiple heights and positions within\r\n              the monitored opening.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n        <\/tbody>\r\n\r\n      <\/table>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-compare-list\">\r\n\r\n      <div class=\"cch-elevator-compare-item\">\r\n\r\n        <div class=\"cch-elevator-compare-item-title\">\r\n          Photocell\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-compare-item-text\">\r\n          A photocell monitors a specific optical line across the doorway.\r\n          Breaking that beam can trigger the door-reopening logic. It is a\r\n          simple approach, but an object located above or below the beam may\r\n          not interrupt it.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-compare-item\">\r\n\r\n        <div class=\"cch-elevator-compare-item-title\">\r\n          Mechanical Safety Edge\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-compare-item-text\">\r\n          A mechanical edge responds after physical contact with the door edge.\r\n          This is fundamentally different from optical presence detection,\r\n          because the object must first interact with the closing door or edge\r\n          mechanism before the device can respond.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-compare-item\">\r\n\r\n        <div class=\"cch-elevator-compare-item-title\">\r\n          Elevator Door Light Curtain\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-compare-item-text\">\r\n          A light curtain monitors a larger portion of the doorway using\r\n          multiple optical paths. This can detect people and objects at several\r\n          heights before physical contact occurs, subject to the actual\r\n          detection geometry and device design.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-compare-selection\">\r\n\r\n      <div class=\"cch-elevator-compare-selection-label\">\r\n        Replacement &amp; Modernization\r\n      <\/div>\r\n\r\n      <h3>\r\n        Do Not Assume One Technology Can Be Replaced by Another Without Review\r\n      <\/h3>\r\n\r\n      <p>\r\n        Replacing a photocell or mechanical edge with a light curtain can\r\n        change detection coverage, wiring, door-control behavior and\r\n        commissioning requirements. A retrofit therefore needs to be reviewed\r\n        as part of the actual elevator door system rather than treated as a\r\n        simple sensor swap.\r\n      <\/p>\r\n\r\n      <p>\r\n        The same principle applies when replacing one light curtain with\r\n        another. Similar housing length or beam count does not establish\r\n        compatibility with the existing door operator or lift controller.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n\r\n    <blockquote class=\"cch-elevator-compare-quote\">\r\n      <p>\r\n        The important question is not which sensing technology sounds more\r\n        advanced, but whether the complete door-reopening system meets the\r\n        requirements of the actual lift.\r\n      <\/p>\r\n    <\/blockquote>\r\n\r\n\r\n    <div class=\"cch-elevator-compare-note\">\r\n\r\n      <div class=\"cch-elevator-compare-note-label\">\r\n        Code Note\r\n      <\/div>\r\n\r\n      <strong>\r\n        Do not use this comparison table as a compliance decision.\r\n      <\/strong>\r\n\r\n      <p>\r\n        The acceptable door-reopening arrangement depends on the applicable\r\n        lift code, the installation or modernization scope, the lift\r\n        configuration and local enforcement requirements. Older installations\r\n        may also be governed by different provisions from a new installation.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n  <\/div>\r\n\r\n<\/section>\n\n\n\n<style>\r\n.cch-elevator-codes {\r\n  box-sizing: border-box;\r\n  background: #ffffff;\r\n  padding: 78px 28px 84px;\r\n}\r\n\r\n.cch-elevator-codes * {\r\n  box-sizing: border-box;\r\n}\r\n\r\n.cch-elevator-codes-inner {\r\n  max-width: 920px;\r\n  margin: 0 auto;\r\n}\r\n\r\n.cch-elevator-codes-number {\r\n  margin-bottom: 14px;\r\n  color: #129fe9;\r\n  font-size: 11px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .11em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-codes h2 {\r\n  margin: 0;\r\n  color: #102431;\r\n  font-size: clamp(30px, 4vw, 44px);\r\n  line-height: 1.18;\r\n  font-weight: 800;\r\n  letter-spacing: -.025em;\r\n}\r\n\r\n.cch-elevator-codes-lead {\r\n  margin: 22px 0 0;\r\n  color: #4f6572;\r\n  font-size: 18px;\r\n  line-height: 1.8;\r\n}\r\n\r\n.cch-elevator-codes-prose {\r\n  margin-top: 32px;\r\n  color: #526875;\r\n  font-size: 16px;\r\n  line-height: 1.88;\r\n}\r\n\r\n.cch-elevator-codes-prose p {\r\n  margin: 0 0 22px;\r\n}\r\n\r\n.cch-elevator-codes-prose p:last-child {\r\n  margin-bottom: 0;\r\n}\r\n\r\n.cch-elevator-codes-prose strong {\r\n  color: #173041;\r\n}\r\n\r\n.cch-elevator-codes-prose h3 {\r\n  margin: 40px 0 14px;\r\n  color: #173041;\r\n  font-size: 22px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n}\r\n\r\n\/* Region blocks *\/\r\n.cch-elevator-code-region {\r\n  margin-top: 42px;\r\n  padding-top: 30px;\r\n  border-top: 2px solid #173746;\r\n}\r\n\r\n.cch-elevator-code-region-head {\r\n  display: grid;\r\n  grid-template-columns: 145px 1fr;\r\n  gap: 26px;\r\n  align-items: start;\r\n}\r\n\r\n.cch-elevator-code-region-label {\r\n  padding-top: 3px;\r\n  color: #129fe9;\r\n  font-size: 11px;\r\n  line-height: 1.5;\r\n  font-weight: 850;\r\n  letter-spacing: .08em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-code-region-title {\r\n  margin: 0;\r\n  color: #173041;\r\n  font-size: 23px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-code-region-body {\r\n  margin: 19px 0 0 171px;\r\n}\r\n\r\n.cch-elevator-code-region-body p {\r\n  margin: 0 0 18px;\r\n  color: #526875;\r\n  font-size: 15px;\r\n  line-height: 1.84;\r\n}\r\n\r\n.cch-elevator-code-region-body p:last-child {\r\n  margin-bottom: 0;\r\n}\r\n\r\n.cch-elevator-code-region-body strong {\r\n  color: #173041;\r\n}\r\n\r\n\/* Standards table *\/\r\n.cch-elevator-code-table-wrap {\r\n  overflow-x: auto;\r\n  margin-top: 28px;\r\n  border-top: 1px solid #dce5ea;\r\n  border-bottom: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-code-table {\r\n  width: 100%;\r\n  min-width: 700px;\r\n  border-collapse: collapse;\r\n}\r\n\r\n.cch-elevator-code-table th,\r\n.cch-elevator-code-table td {\r\n  padding: 17px 14px;\r\n  border-bottom: 1px solid #e1e8ec;\r\n  text-align: left;\r\n  vertical-align: top;\r\n}\r\n\r\n.cch-elevator-code-table tr:last-child td {\r\n  border-bottom: 0;\r\n}\r\n\r\n.cch-elevator-code-table th {\r\n  color: #173041;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .06em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-code-table td {\r\n  color: #566c78;\r\n  font-size: 14px;\r\n  line-height: 1.72;\r\n}\r\n\r\n.cch-elevator-code-table td:first-child {\r\n  width: 215px;\r\n  color: #173041;\r\n  font-weight: 800;\r\n}\r\n\r\n\/* Practical code logic *\/\r\n.cch-elevator-code-check {\r\n  margin-top: 45px;\r\n  padding-top: 30px;\r\n  border-top: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-code-check-label {\r\n  margin-bottom: 9px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-code-check h3 {\r\n  margin: 0;\r\n  color: #173041;\r\n  font-size: 22px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-code-check-list {\r\n  margin-top: 23px;\r\n  border-top: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-code-check-row {\r\n  display: grid;\r\n  grid-template-columns: 44px 195px 1fr;\r\n  gap: 17px;\r\n  padding: 20px 0;\r\n  border-bottom: 1px solid #dfe7eb;\r\n}\r\n\r\n.cch-elevator-code-check-num {\r\n  color: #129fe9;\r\n  font-size: 11px;\r\n  line-height: 1.5;\r\n  font-weight: 850;\r\n}\r\n\r\n.cch-elevator-code-check-title {\r\n  color: #173041;\r\n  font-size: 14px;\r\n  line-height: 1.55;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-code-check-text {\r\n  color: #586e7a;\r\n  font-size: 14px;\r\n  line-height: 1.76;\r\n}\r\n\r\n\/* Important distinction *\/\r\n.cch-elevator-code-note {\r\n  margin-top: 42px;\r\n  padding: 25px 0 0 22px;\r\n  border-top: 1px solid #dce5ea;\r\n  border-left: 3px solid #129fe9;\r\n}\r\n\r\n.cch-elevator-code-note-label {\r\n  margin-bottom: 7px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .09em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-code-note p {\r\n  margin: 0;\r\n  color: #506875;\r\n  font-size: 14px;\r\n  line-height: 1.82;\r\n}\r\n\r\n.cch-elevator-code-note strong {\r\n  color: #173041;\r\n}\r\n\r\n\/* References *\/\r\n.cch-elevator-code-references {\r\n  margin-top: 38px;\r\n  padding-top: 27px;\r\n  border-top: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-code-references-label {\r\n  margin-bottom: 13px;\r\n  color: #173041;\r\n  font-size: 11px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .08em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-code-reference {\r\n  display: grid;\r\n  grid-template-columns: 205px 1fr;\r\n  gap: 20px;\r\n  padding: 14px 0;\r\n  border-bottom: 1px solid #e3eaee;\r\n}\r\n\r\n.cch-elevator-code-reference-name {\r\n  color: #173041;\r\n  font-size: 13px;\r\n  line-height: 1.55;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-code-reference-text {\r\n  color: #627681;\r\n  font-size: 13px;\r\n  line-height: 1.7;\r\n}\r\n\r\n.cch-elevator-code-link {\r\n  color: #167ba8 !important;\r\n  font-weight: 750;\r\n  text-decoration: none !important;\r\n  border-bottom: 1px solid rgba(22,123,168,.28);\r\n}\r\n\r\n.cch-elevator-code-link:hover {\r\n  border-bottom-color: #167ba8;\r\n}\r\n\r\n@media (max-width: 767px) {\r\n  .cch-elevator-codes {\r\n    padding: 58px 20px 66px;\r\n  }\r\n\r\n  .cch-elevator-codes h2 {\r\n    font-size: 32px;\r\n  }\r\n\r\n  .cch-elevator-codes-lead {\r\n    font-size: 17px;\r\n  }\r\n\r\n  .cch-elevator-codes-prose {\r\n    font-size: 15px;\r\n    line-height: 1.82;\r\n  }\r\n\r\n  .cch-elevator-code-region-head {\r\n    grid-template-columns: 1fr;\r\n    gap: 6px;\r\n  }\r\n\r\n  .cch-elevator-code-region-body {\r\n    margin-left: 0;\r\n  }\r\n\r\n  .cch-elevator-code-check-row {\r\n    grid-template-columns: 34px 1fr;\r\n    gap: 6px 11px;\r\n  }\r\n\r\n  .cch-elevator-code-check-text {\r\n    grid-column: 2;\r\n  }\r\n\r\n  .cch-elevator-code-reference {\r\n    grid-template-columns: 1fr;\r\n    gap: 5px;\r\n  }\r\n\r\n  .cch-elevator-code-note {\r\n    padding-left: 18px;\r\n  }\r\n}\r\n<\/style>\r\n\r\n<section class=\"cch-elevator-codes\">\r\n\r\n  <div class=\"cch-elevator-codes-inner\">\r\n\r\n    <div class=\"cch-elevator-codes-number\">\r\n      04 \u00b7 Codes &amp; Standards\r\n    <\/div>\r\n\r\n    <h2>\r\n      Elevator Door Codes in 2026:\r\n      Europe and North America\r\n    <\/h2>\r\n\r\n    <p class=\"cch-elevator-codes-lead\">\r\n      Elevator door protection is governed within lift-specific codes and\r\n      standards. The applicable edition depends not only on the country, but\r\n      also on when the lift was installed, whether it is being modernized and\r\n      which edition has been adopted by the local authority.\r\n    <\/p>\r\n\r\n    <div class=\"cch-elevator-codes-prose\">\r\n\r\n      <p>\r\n        This is one reason elevator door light curtains should not be selected\r\n        by borrowing the Type, PL or SIL language used for machinery safety\r\n        light curtains. Elevator door reopening devices belong within the\r\n        <strong>lift-code framework<\/strong> applicable to the installation.\r\n      <\/p>\r\n\r\n      <p>\r\n        Another complication is that 2026 is a transition year in the\r\n        international standards landscape. New ISO and European editions have\r\n        been published, while existing lifts may still be governed by earlier\r\n        requirements, national legislation or modernization rules.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n\r\n    <!-- EUROPE -->\r\n    <div class=\"cch-elevator-code-region\">\r\n\r\n      <div class=\"cch-elevator-code-region-head\">\r\n\r\n        <div class=\"cch-elevator-code-region-label\">\r\n          Europe\r\n        <\/div>\r\n\r\n        <h3 class=\"cch-elevator-code-region-title\">\r\n          From EN 81-20 Toward EN ISO 8100-1:2026\r\n        <\/h3>\r\n\r\n      <\/div>\r\n\r\n      <div class=\"cch-elevator-code-region-body\">\r\n\r\n        <p>\r\n          EN 81-20 has been a central European standard for the safety\r\n          requirements of passenger and goods-passenger lifts. In 2026, the\r\n          international framework moved forward with the publication of\r\n          <strong>ISO 8100-1:2026<\/strong>, followed by publication of\r\n          <strong>EN ISO 8100-1:2026<\/strong> within the European standards\r\n          system.\r\n        <\/p>\r\n\r\n        <p>\r\n          ISO 8100-1:2026 covers safety rules for the construction and\r\n          installation of passenger and goods-passenger lifts. Importantly,\r\n          the ISO scope states that the 2026 edition is not applicable to\r\n          passenger and goods-passenger lifts installed before its publication\r\n          date.\r\n        <\/p>\r\n\r\n        <p>\r\n          For an existing installation, modernization or replacement project,\r\n          it is therefore not enough to ask which standard has the newest\r\n          publication date. The applicable requirements should be confirmed\r\n          against the lift&#8217;s age, modernization scope, national adoption,\r\n          legislation and the relevant authority having jurisdiction.\r\n        <\/p>\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n\r\n    <!-- NORTH AMERICA -->\r\n    <div class=\"cch-elevator-code-region\">\r\n\r\n      <div class=\"cch-elevator-code-region-head\">\r\n\r\n        <div class=\"cch-elevator-code-region-label\">\r\n          North America\r\n        <\/div>\r\n\r\n        <h3 class=\"cch-elevator-code-region-title\">\r\n          ASME A17.1 \/ CSA B44\r\n        <\/h3>\r\n\r\n      <\/div>\r\n\r\n      <div class=\"cch-elevator-code-region-body\">\r\n\r\n        <p>\r\n          In North America, elevator and escalator requirements are commonly\r\n          addressed through the harmonized\r\n          <strong>ASME A17.1 \/ CSA B44<\/strong> safety-code framework. The\r\n          current ASME publication is A17.1-2025.\r\n        <\/p>\r\n\r\n        <p>\r\n          The code addresses far more than door sensing. Its scope extends\r\n          across elevator design, construction, installation, operation,\r\n          inspection, testing, maintenance, alteration and repair. Door\r\n          reopening devices therefore need to be considered within the\r\n          complete elevator-system requirements rather than as an isolated\r\n          optical sensor specification.\r\n        <\/p>\r\n\r\n        <p>\r\n          A jurisdiction may adopt a different edition from the latest\r\n          published edition. Local building codes, state or provincial rules,\r\n          inspection authorities and modernization requirements can therefore\r\n          affect which provisions apply to a specific lift.\r\n        <\/p>\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-code-table-wrap\">\r\n\r\n      <table class=\"cch-elevator-code-table\">\r\n\r\n        <thead>\r\n          <tr>\r\n            <th>Reference<\/th>\r\n            <th>What It Represents<\/th>\r\n            <th>What a Buyer Should Remember<\/th>\r\n          <\/tr>\r\n        <\/thead>\r\n\r\n        <tbody>\r\n\r\n          <tr>\r\n            <td>EN 81-20<\/td>\r\n            <td>\r\n              Established European lift safety framework used for passenger and\r\n              goods-passenger lift construction and installation.\r\n            <\/td>\r\n            <td>\r\n              Still highly relevant to existing installations and earlier\r\n              projects; do not assume a new publication automatically changes\r\n              the requirements governing an existing lift.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n          <tr>\r\n            <td>ISO 8100-1:2026<\/td>\r\n            <td>\r\n              Current international safety rules for construction and\r\n              installation of passenger and goods-passenger lifts.\r\n            <\/td>\r\n            <td>\r\n              Published in March 2026. Its stated scope does not apply the\r\n              standard to lifts installed before its publication date.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n          <tr>\r\n            <td>EN ISO 8100-1:2026<\/td>\r\n            <td>\r\n              European adoption of the 2026 ISO 8100-1 framework.\r\n            <\/td>\r\n            <td>\r\n              Check national implementation, transition arrangements and the\r\n              applicable regulatory framework for the actual project.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n          <tr>\r\n            <td>ASME A17.1-2025 \/ CSA B44<\/td>\r\n            <td>\r\n              North American safety-code framework for elevators, escalators\r\n              and related conveyances.\r\n            <\/td>\r\n            <td>\r\n              The latest published edition is not necessarily the edition\r\n              adopted by every state, province or local jurisdiction.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n        <\/tbody>\r\n\r\n      <\/table>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-code-check\">\r\n\r\n      <div class=\"cch-elevator-code-check-label\">\r\n        Before Selecting a Replacement\r\n      <\/div>\r\n\r\n      <h3>\r\n        Four Code Questions to Confirm\r\n      <\/h3>\r\n\r\n      <div class=\"cch-elevator-code-check-list\">\r\n\r\n        <div class=\"cch-elevator-code-check-row\">\r\n\r\n          <div class=\"cch-elevator-code-check-num\">\r\n            01\r\n          <\/div>\r\n\r\n          <div class=\"cch-elevator-code-check-title\">\r\n            Where Is the Lift Installed?\r\n          <\/div>\r\n\r\n          <div class=\"cch-elevator-code-check-text\">\r\n            Country, state, province or local jurisdiction can determine which\r\n            lift code and edition has legal or regulatory force.\r\n          <\/div>\r\n\r\n        <\/div>\r\n\r\n\r\n        <div class=\"cch-elevator-code-check-row\">\r\n\r\n          <div class=\"cch-elevator-code-check-num\">\r\n            02\r\n          <\/div>\r\n\r\n          <div class=\"cch-elevator-code-check-title\">\r\n            New Lift or Existing Lift?\r\n          <\/div>\r\n\r\n          <div class=\"cch-elevator-code-check-text\">\r\n            Requirements for a new installation may differ from those applying\r\n            to an existing lift undergoing maintenance, repair or modernization.\r\n          <\/div>\r\n\r\n        <\/div>\r\n\r\n\r\n        <div class=\"cch-elevator-code-check-row\">\r\n\r\n          <div class=\"cch-elevator-code-check-num\">\r\n            03\r\n          <\/div>\r\n\r\n          <div class=\"cch-elevator-code-check-title\">\r\n            What Is the Modernization Scope?\r\n          <\/div>\r\n\r\n          <div class=\"cch-elevator-code-check-text\">\r\n            Replacing one reopening device is not necessarily treated the same\r\n            way as replacing the complete door operator or carrying out a\r\n            broader lift modernization.\r\n          <\/div>\r\n\r\n        <\/div>\r\n\r\n\r\n        <div class=\"cch-elevator-code-check-row\">\r\n\r\n          <div class=\"cch-elevator-code-check-num\">\r\n            04\r\n          <\/div>\r\n\r\n          <div class=\"cch-elevator-code-check-title\">\r\n            Who Approves the Work?\r\n          <\/div>\r\n\r\n          <div class=\"cch-elevator-code-check-text\">\r\n            The elevator manufacturer, qualified lift contractor, inspector and\r\n            authority having jurisdiction may all affect product acceptance,\r\n            installation and commissioning requirements.\r\n          <\/div>\r\n\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-code-note\">\r\n\r\n      <div class=\"cch-elevator-code-note-label\">\r\n        Important Code Note\r\n      <\/div>\r\n\r\n      <p>\r\n        <strong>A standards publication date is not the same thing as a local\r\n        enforcement date.<\/strong>\r\n        Do not select an elevator door light curtain only because a supplier\r\n        states that it is \u201cEN 81-20 compliant\u201d or \u201cA17.1 compliant.\u201d Verify\r\n        what the claim covers, which product configuration was assessed, which\r\n        code edition applies to the lift and whether the device is accepted for\r\n        the actual installation.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-code-references\">\r\n\r\n      <div class=\"cch-elevator-code-references-label\">\r\n        Official References\r\n      <\/div>\r\n\r\n      <div class=\"cch-elevator-code-reference\">\r\n\r\n        <div class=\"cch-elevator-code-reference-name\">\r\n          ISO 8100-1:2026\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-code-reference-text\">\r\n          Safety rules for construction and installation of passenger and\r\n          goods-passenger lifts.\r\n          <a class=\"cch-elevator-code-link\" href=\"https:\/\/www.iso.org\/standard\/80553.html\" target=\"_blank\" rel=\"noopener\">\r\n            ISO official publication \u2192\r\n          <\/a>\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-code-reference\">\r\n\r\n        <div class=\"cch-elevator-code-reference-name\">\r\n          BS EN ISO 8100-1:2026\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-code-reference-text\">\r\n          UK publication identical to EN ISO 8100-1:2026 and\r\n          ISO 8100-1:2026.\r\n          <a class=\"cch-elevator-code-link\" href=\"https:\/\/knowledge.bsigroup.com\/products\/lifts-for-the-transport-of-persons-and-goods-safety-rules-for-the-construction-and-installation-of-passenger-and-goods-passenger-lifts-3\" target=\"_blank\" rel=\"noopener\">\r\n            BSI official publication \u2192\r\n          <\/a>\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-code-reference\">\r\n\r\n        <div class=\"cch-elevator-code-reference-name\">\r\n          ASME A17.1-2025 \/ CSA B44\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-code-reference-text\">\r\n          North American Safety Code for Elevators and Escalators.\r\n          <a class=\"cch-elevator-code-link\" href=\"https:\/\/www.asme.org\/codes-standards\/find-codes-standards\/safety-code-for-elevators-and-escalators\" target=\"_blank\" rel=\"noopener\">\r\n            ASME official publication \u2192\r\n          <\/a>\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n  <\/div>\r\n\r\n<\/section>\n\n\n\n<style>\r\n.cch-elevator-select {\r\n  box-sizing: border-box;\r\n  background: #f7f9fa;\r\n  padding: 78px 28px 84px;\r\n  border-top: 1px solid #e2e9ed;\r\n  border-bottom: 1px solid #e2e9ed;\r\n}\r\n\r\n.cch-elevator-select * {\r\n  box-sizing: border-box;\r\n}\r\n\r\n.cch-elevator-select-inner {\r\n  max-width: 920px;\r\n  margin: 0 auto;\r\n}\r\n\r\n.cch-elevator-select-number {\r\n  margin-bottom: 14px;\r\n  color: #129fe9;\r\n  font-size: 11px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .11em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-select h2 {\r\n  margin: 0;\r\n  color: #102431;\r\n  font-size: clamp(30px, 4vw, 44px);\r\n  line-height: 1.18;\r\n  font-weight: 800;\r\n  letter-spacing: -.025em;\r\n}\r\n\r\n.cch-elevator-select-lead {\r\n  margin: 22px 0 0;\r\n  color: #4f6572;\r\n  font-size: 18px;\r\n  line-height: 1.8;\r\n}\r\n\r\n.cch-elevator-select-prose {\r\n  margin-top: 32px;\r\n  color: #526875;\r\n  font-size: 16px;\r\n  line-height: 1.88;\r\n}\r\n\r\n.cch-elevator-select-prose p {\r\n  margin: 0 0 22px;\r\n}\r\n\r\n.cch-elevator-select-prose p:last-child {\r\n  margin-bottom: 0;\r\n}\r\n\r\n.cch-elevator-select-prose strong {\r\n  color: #173041;\r\n}\r\n\r\n.cch-elevator-select-prose h3 {\r\n  margin: 40px 0 14px;\r\n  color: #173041;\r\n  font-size: 22px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n}\r\n\r\n\/* Selection checklist *\/\r\n.cch-elevator-select-list {\r\n  margin-top: 40px;\r\n  border-top: 2px solid #173746;\r\n}\r\n\r\n.cch-elevator-select-row {\r\n  display: grid;\r\n  grid-template-columns: 52px 215px 1fr;\r\n  gap: 19px;\r\n  padding: 24px 0;\r\n  border-bottom: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-select-index {\r\n  color: #129fe9;\r\n  font-size: 11px;\r\n  line-height: 1.5;\r\n  font-weight: 850;\r\n}\r\n\r\n.cch-elevator-select-title {\r\n  color: #173041;\r\n  font-size: 15px;\r\n  line-height: 1.5;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-select-text {\r\n  color: #586e7a;\r\n  font-size: 14px;\r\n  line-height: 1.78;\r\n}\r\n\r\n.cch-elevator-select-text strong {\r\n  color: #173041;\r\n}\r\n\r\n\/* Replacement comparison *\/\r\n.cch-elevator-replacement {\r\n  margin-top: 46px;\r\n  padding-top: 30px;\r\n  border-top: 1px solid #d8e2e7;\r\n}\r\n\r\n.cch-elevator-replacement-label {\r\n  margin-bottom: 9px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-replacement h3 {\r\n  margin: 0;\r\n  color: #173041;\r\n  font-size: 22px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-replacement-intro {\r\n  margin: 12px 0 0;\r\n  color: #526875;\r\n  font-size: 15px;\r\n  line-height: 1.82;\r\n}\r\n\r\n.cch-elevator-replacement-table-wrap {\r\n  overflow-x: auto;\r\n  margin-top: 24px;\r\n  background: #ffffff;\r\n  border-top: 2px solid #173746;\r\n  border-bottom: 1px solid #d7e1e6;\r\n}\r\n\r\n.cch-elevator-replacement-table {\r\n  width: 100%;\r\n  min-width: 720px;\r\n  border-collapse: collapse;\r\n}\r\n\r\n.cch-elevator-replacement-table th,\r\n.cch-elevator-replacement-table td {\r\n  padding: 17px 14px;\r\n  border-bottom: 1px solid #e0e7eb;\r\n  text-align: left;\r\n  vertical-align: top;\r\n}\r\n\r\n.cch-elevator-replacement-table tr:last-child td {\r\n  border-bottom: 0;\r\n}\r\n\r\n.cch-elevator-replacement-table th {\r\n  color: #173041;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .06em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-replacement-table td {\r\n  color: #566c78;\r\n  font-size: 14px;\r\n  line-height: 1.72;\r\n}\r\n\r\n.cch-elevator-replacement-table td:first-child {\r\n  width: 190px;\r\n  color: #173041;\r\n  font-weight: 800;\r\n}\r\n\r\n\/* Existing device note *\/\r\n.cch-elevator-existing {\r\n  margin-top: 44px;\r\n  padding-top: 29px;\r\n  border-top: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-existing-label {\r\n  margin-bottom: 9px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-existing h3 {\r\n  margin: 0;\r\n  color: #173041;\r\n  font-size: 22px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-existing p {\r\n  margin: 12px 0 0;\r\n  color: #526875;\r\n  font-size: 15px;\r\n  line-height: 1.82;\r\n}\r\n\r\n\/* Pull quote *\/\r\n.cch-elevator-select-quote {\r\n  margin: 40px 0 0;\r\n  padding-left: 23px;\r\n  border-left: 3px solid #129fe9;\r\n}\r\n\r\n.cch-elevator-select-quote p {\r\n  margin: 0;\r\n  color: #173041;\r\n  font-size: 20px;\r\n  line-height: 1.62;\r\n  font-weight: 700;\r\n}\r\n\r\n\/* Buyer note *\/\r\n.cch-elevator-select-note {\r\n  margin-top: 34px;\r\n  padding: 23px 25px;\r\n  background: #ffffff;\r\n  border: 1px solid #dfe7eb;\r\n}\r\n\r\n.cch-elevator-select-note-label {\r\n  margin-bottom: 8px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-select-note strong {\r\n  display: block;\r\n  margin-bottom: 7px;\r\n  color: #173041;\r\n  font-size: 16px;\r\n  line-height: 1.5;\r\n}\r\n\r\n.cch-elevator-select-note p {\r\n  margin: 0;\r\n  color: #526875;\r\n  font-size: 14px;\r\n  line-height: 1.78;\r\n}\r\n\r\n@media (max-width: 767px) {\r\n  .cch-elevator-select {\r\n    padding: 58px 20px 66px;\r\n  }\r\n\r\n  .cch-elevator-select h2 {\r\n    font-size: 32px;\r\n  }\r\n\r\n  .cch-elevator-select-lead {\r\n    font-size: 17px;\r\n  }\r\n\r\n  .cch-elevator-select-prose {\r\n    font-size: 15px;\r\n    line-height: 1.82;\r\n  }\r\n\r\n  .cch-elevator-select-row {\r\n    grid-template-columns: 36px 1fr;\r\n    gap: 7px 12px;\r\n  }\r\n\r\n  .cch-elevator-select-text {\r\n    grid-column: 2;\r\n  }\r\n\r\n  .cch-elevator-select-quote {\r\n    padding-left: 18px;\r\n  }\r\n\r\n  .cch-elevator-select-quote p {\r\n    font-size: 18px;\r\n  }\r\n\r\n  .cch-elevator-select-note {\r\n    padding: 20px 19px;\r\n  }\r\n}\r\n<\/style>\r\n\r\n<section class=\"cch-elevator-select\">\r\n\r\n  <div class=\"cch-elevator-select-inner\">\r\n\r\n    <div class=\"cch-elevator-select-number\">\r\n      05 \u00b7 Selection &amp; Replacement\r\n    <\/div>\r\n\r\n    <h2>\r\n      What to Check When Selecting or Replacing an Elevator Light Curtain\r\n    <\/h2>\r\n\r\n    <p class=\"cch-elevator-select-lead\">\r\n      A replacement light curtain should be selected as part of the existing\r\n      elevator door system. Matching sensor length or counting optical beams is\r\n      not enough to establish compatibility.\r\n    <\/p>\r\n\r\n    <div class=\"cch-elevator-select-prose\">\r\n\r\n      <p>\r\n        The most useful starting point is the existing lift documentation:\r\n        identify the current light curtain, door operator, controller and\r\n        installation geometry before choosing a replacement.\r\n      <\/p>\r\n\r\n      <p>\r\n        For a modernization project, the same information helps determine\r\n        whether the existing arrangement can be retained or whether the new\r\n        reopening device changes the mechanical, electrical or commissioning\r\n        requirements of the door system.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-select-list\">\r\n\r\n      <div class=\"cch-elevator-select-row\">\r\n\r\n        <div class=\"cch-elevator-select-index\">01<\/div>\r\n\r\n        <div class=\"cch-elevator-select-title\">\r\n          Door Configuration\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-select-text\">\r\n          Identify whether the lift uses center-opening, side-opening or\r\n          another door arrangement, and how the car and landing doors move\r\n          relative to the proposed sensor mounting position.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-select-row\">\r\n\r\n        <div class=\"cch-elevator-select-index\">02<\/div>\r\n\r\n        <div class=\"cch-elevator-select-title\">\r\n          Existing Reopening Device\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-select-text\">\r\n          Record the current manufacturer, model number, installation method,\r\n          wiring and available technical documentation. This can reveal\r\n          compatibility requirements that are not obvious from the physical\r\n          appearance of the sensor.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-select-row\">\r\n\r\n        <div class=\"cch-elevator-select-index\">03<\/div>\r\n\r\n        <div class=\"cch-elevator-select-title\">\r\n          Detection Coverage\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-select-text\">\r\n          Confirm the doorway area that must be monitored and whether the\r\n          proposed product provides the required detection coverage when\r\n          installed in the actual door geometry.\r\n          <strong>Beam count alone is not a substitute for this evaluation.<\/strong>\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-select-row\">\r\n\r\n        <div class=\"cch-elevator-select-index\">04<\/div>\r\n\r\n        <div class=\"cch-elevator-select-title\">\r\n          Mounting Geometry\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-select-text\">\r\n          Check available mounting space, sensor position, movement of the\r\n          door panels, cable routing and whether the transmitter and receiver\r\n          can remain correctly aligned throughout normal door operation.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-select-row\">\r\n\r\n        <div class=\"cch-elevator-select-index\">05<\/div>\r\n\r\n        <div class=\"cch-elevator-select-title\">\r\n          Door Operator Compatibility\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-select-text\">\r\n          Confirm how the proposed light curtain interfaces with the actual\r\n          door operator or controller. Output type, supply requirements,\r\n          interface modules and fault behavior are product-specific and should\r\n          be verified from the relevant documentation.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-select-row\">\r\n\r\n        <div class=\"cch-elevator-select-index\">06<\/div>\r\n\r\n        <div class=\"cch-elevator-select-title\">\r\n          Operating Logic\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-select-text\">\r\n          Determine how an obstruction signal is handled by the complete door\r\n          system, including reopening behavior and any operating modes that\r\n          affect door movement. Do not assume two light curtains produce\r\n          identical system behavior simply because both detect obstructions.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-select-row\">\r\n\r\n        <div class=\"cch-elevator-select-index\">07<\/div>\r\n\r\n        <div class=\"cch-elevator-select-title\">\r\n          Environmental Conditions\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-select-text\">\r\n          Consider dust, contamination, moisture, temperature, direct or\r\n          reflected light, vibration, repeated door movement and cleaning\r\n          conditions. Environmental suitability should be checked against the\r\n          exact product specification.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-select-row\">\r\n\r\n        <div class=\"cch-elevator-select-index\">08<\/div>\r\n\r\n        <div class=\"cch-elevator-select-title\">\r\n          Applicable Lift Requirements\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-select-text\">\r\n          Confirm the code edition, modernization requirements and acceptance\r\n          criteria applicable to the actual lift. Supplier marketing language\r\n          should not replace review by qualified lift personnel or the\r\n          authority having jurisdiction.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-select-row\">\r\n\r\n        <div class=\"cch-elevator-select-index\">09<\/div>\r\n\r\n        <div class=\"cch-elevator-select-title\">\r\n          Documentation &amp; Diagnostics\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-select-text\">\r\n          Check that the replacement has the documentation needed for\r\n          installation, commissioning and troubleshooting, together with any\r\n          diagnostic indication required by the maintenance team.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-replacement\">\r\n\r\n      <div class=\"cch-elevator-replacement-label\">\r\n        Replacement Checklist\r\n      <\/div>\r\n\r\n      <h3>\r\n        \u201cSame Size\u201d Is Not the Same as \u201cDrop-In Compatible\u201d\r\n      <\/h3>\r\n\r\n      <p class=\"cch-elevator-replacement-intro\">\r\n        Before approving a replacement, compare the existing device and the\r\n        proposed device across the complete door-system interface.\r\n      <\/p>\r\n\r\n      <div class=\"cch-elevator-replacement-table-wrap\">\r\n\r\n        <table class=\"cch-elevator-replacement-table\">\r\n\r\n          <thead>\r\n            <tr>\r\n              <th>Check<\/th>\r\n              <th>Why It Matters<\/th>\r\n            <\/tr>\r\n          <\/thead>\r\n\r\n          <tbody>\r\n\r\n            <tr>\r\n              <td>Physical Dimensions<\/td>\r\n              <td>\r\n                Determines whether the sensors can be installed without\r\n                interfering with door travel, brackets or existing hardware.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>Detection Coverage<\/td>\r\n              <td>\r\n                Similar housing length does not guarantee the same monitored\r\n                doorway area or optical geometry.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>Electrical Supply<\/td>\r\n              <td>\r\n                The replacement must match the supply requirements of the\r\n                product and installation.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>Signal Interface<\/td>\r\n              <td>\r\n                The door operator must be able to interpret the replacement\r\n                device&#8217;s output correctly.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>Fault Behavior<\/td>\r\n              <td>\r\n                Diagnostic or failure behavior can affect how the door system\r\n                reacts and how technicians identify problems.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>Mounting &amp; Alignment<\/td>\r\n              <td>\r\n                Sensor movement, door vibration and alignment requirements can\r\n                differ between products.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>Documentation<\/td>\r\n              <td>\r\n                Installation and commissioning should be based on the exact\r\n                replacement product documentation rather than assumptions from\r\n                the old sensor.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n            <tr>\r\n              <td>Code \/ Inspection Acceptance<\/td>\r\n              <td>\r\n                The replacement must be suitable for the lift and accepted\r\n                under the requirements governing that installation.\r\n              <\/td>\r\n            <\/tr>\r\n\r\n          <\/tbody>\r\n\r\n        <\/table>\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-existing\">\r\n\r\n      <div class=\"cch-elevator-existing-label\">\r\n        Existing Lifts\r\n      <\/div>\r\n\r\n      <h3>\r\n        Start With the Old Model Number Whenever Possible\r\n      <\/h3>\r\n\r\n      <p>\r\n        If an elevator light curtain has failed, photograph the device label\r\n        and record the transmitter, receiver, controller or interface-module\r\n        model numbers before removing the old equipment. Also record connector\r\n        types, cable routing, mounting dimensions and the door operator model.\r\n      <\/p>\r\n\r\n      <p>\r\n        This information is usually more useful than sending only the doorway\r\n        width or asking for \u201ca universal elevator light curtain.\u201d\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n\r\n    <blockquote class=\"cch-elevator-select-quote\">\r\n      <p>\r\n        A successful replacement matches the door system, not just the size of\r\n        the old sensor.\r\n      <\/p>\r\n    <\/blockquote>\r\n\r\n\r\n    <div class=\"cch-elevator-select-note\">\r\n\r\n      <div class=\"cch-elevator-select-note-label\">\r\n        Selection Note\r\n      <\/div>\r\n\r\n      <strong>\r\n        There is no universal beam-count rule for every elevator light curtain.\r\n      <\/strong>\r\n\r\n      <p>\r\n        The correct device should be evaluated from the required detection\r\n        performance, installation geometry, product design and applicable lift\r\n        requirements. A higher number of optical paths may change detection\r\n        density, but beam count alone does not establish compliance or\r\n        suitability.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n  <\/div>\r\n\r\n<\/section>\n\n\n\n<style>\r\n.cch-elevator-troubleshoot {\r\n  box-sizing: border-box;\r\n  background: #f7f9fa;\r\n  padding: 78px 28px 84px;\r\n  border-top: 1px solid #e2e9ed;\r\n  border-bottom: 1px solid #e2e9ed;\r\n}\r\n\r\n.cch-elevator-troubleshoot * {\r\n  box-sizing: border-box;\r\n}\r\n\r\n.cch-elevator-troubleshoot-inner {\r\n  max-width: 920px;\r\n  margin: 0 auto;\r\n}\r\n\r\n.cch-elevator-troubleshoot-number {\r\n  margin-bottom: 14px;\r\n  color: #129fe9;\r\n  font-size: 11px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .11em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-troubleshoot h2 {\r\n  margin: 0;\r\n  color: #102431;\r\n  font-size: clamp(30px, 4vw, 44px);\r\n  line-height: 1.18;\r\n  font-weight: 800;\r\n  letter-spacing: -.025em;\r\n}\r\n\r\n.cch-elevator-troubleshoot-lead {\r\n  margin: 22px 0 0;\r\n  color: #4f6572;\r\n  font-size: 18px;\r\n  line-height: 1.8;\r\n}\r\n\r\n.cch-elevator-troubleshoot-prose {\r\n  margin-top: 32px;\r\n  color: #526875;\r\n  font-size: 16px;\r\n  line-height: 1.88;\r\n}\r\n\r\n.cch-elevator-troubleshoot-prose p {\r\n  margin: 0 0 22px;\r\n}\r\n\r\n.cch-elevator-troubleshoot-prose p:last-child {\r\n  margin-bottom: 0;\r\n}\r\n\r\n.cch-elevator-troubleshoot-prose strong {\r\n  color: #173041;\r\n}\r\n\r\n.cch-elevator-troubleshoot-prose h3 {\r\n  margin: 40px 0 14px;\r\n  color: #173041;\r\n  font-size: 22px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n}\r\n\r\n\/* Cause list *\/\r\n.cch-elevator-troubleshoot-list {\r\n  margin-top: 40px;\r\n  border-top: 2px solid #173746;\r\n}\r\n\r\n.cch-elevator-troubleshoot-row {\r\n  display: grid;\r\n  grid-template-columns: 52px 220px 1fr;\r\n  gap: 19px;\r\n  padding: 24px 0;\r\n  border-bottom: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-troubleshoot-index {\r\n  color: #129fe9;\r\n  font-size: 11px;\r\n  line-height: 1.5;\r\n  font-weight: 850;\r\n}\r\n\r\n.cch-elevator-troubleshoot-title {\r\n  color: #173041;\r\n  font-size: 15px;\r\n  line-height: 1.5;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-troubleshoot-text {\r\n  color: #586e7a;\r\n  font-size: 14px;\r\n  line-height: 1.78;\r\n}\r\n\r\n.cch-elevator-troubleshoot-text strong {\r\n  color: #173041;\r\n}\r\n\r\n\/* Symptom table *\/\r\n.cch-elevator-troubleshoot-table-wrap {\r\n  overflow-x: auto;\r\n  margin-top: 46px;\r\n  background: #ffffff;\r\n  border-top: 2px solid #173746;\r\n  border-bottom: 1px solid #d7e1e6;\r\n}\r\n\r\n.cch-elevator-troubleshoot-table {\r\n  width: 100%;\r\n  min-width: 760px;\r\n  border-collapse: collapse;\r\n}\r\n\r\n.cch-elevator-troubleshoot-table th,\r\n.cch-elevator-troubleshoot-table td {\r\n  padding: 17px 14px;\r\n  border-bottom: 1px solid #e0e7eb;\r\n  text-align: left;\r\n  vertical-align: top;\r\n}\r\n\r\n.cch-elevator-troubleshoot-table tr:last-child td {\r\n  border-bottom: 0;\r\n}\r\n\r\n.cch-elevator-troubleshoot-table th {\r\n  color: #173041;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .06em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-troubleshoot-table td {\r\n  color: #566c78;\r\n  font-size: 14px;\r\n  line-height: 1.72;\r\n}\r\n\r\n.cch-elevator-troubleshoot-table td:first-child {\r\n  width: 210px;\r\n  color: #173041;\r\n  font-weight: 800;\r\n}\r\n\r\n\/* Maintenance principles *\/\r\n.cch-elevator-maintenance {\r\n  margin-top: 46px;\r\n  padding-top: 30px;\r\n  border-top: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-maintenance-label {\r\n  margin-bottom: 9px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-maintenance h3 {\r\n  margin: 0;\r\n  color: #173041;\r\n  font-size: 22px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-maintenance p {\r\n  margin: 12px 0 0;\r\n  color: #526875;\r\n  font-size: 15px;\r\n  line-height: 1.82;\r\n}\r\n\r\n.cch-elevator-maintenance-points {\r\n  margin-top: 22px;\r\n  border-top: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-maintenance-point {\r\n  display: grid;\r\n  grid-template-columns: 185px 1fr;\r\n  gap: 25px;\r\n  padding: 18px 0;\r\n  border-bottom: 1px solid #dfe7eb;\r\n}\r\n\r\n.cch-elevator-maintenance-point-title {\r\n  color: #173041;\r\n  font-size: 14px;\r\n  line-height: 1.55;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-maintenance-point-text {\r\n  color: #586e7a;\r\n  font-size: 14px;\r\n  line-height: 1.76;\r\n}\r\n\r\n\/* Diagnostic principle *\/\r\n.cch-elevator-troubleshoot-note {\r\n  margin-top: 42px;\r\n  padding: 24px 0 0 22px;\r\n  border-top: 1px solid #dce5ea;\r\n  border-left: 3px solid #129fe9;\r\n}\r\n\r\n.cch-elevator-troubleshoot-note-label {\r\n  margin-bottom: 7px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .09em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-troubleshoot-note p {\r\n  margin: 0;\r\n  color: #506875;\r\n  font-size: 14px;\r\n  line-height: 1.82;\r\n}\r\n\r\n.cch-elevator-troubleshoot-note strong {\r\n  color: #173041;\r\n}\r\n\r\n\/* Service caution *\/\r\n.cch-elevator-troubleshoot-service {\r\n  margin-top: 34px;\r\n  padding: 23px 25px;\r\n  background: #ffffff;\r\n  border: 1px solid #dfe7eb;\r\n}\r\n\r\n.cch-elevator-troubleshoot-service-label {\r\n  margin-bottom: 8px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-troubleshoot-service strong {\r\n  display: block;\r\n  margin-bottom: 7px;\r\n  color: #173041;\r\n  font-size: 16px;\r\n  line-height: 1.5;\r\n}\r\n\r\n.cch-elevator-troubleshoot-service p {\r\n  margin: 0;\r\n  color: #526875;\r\n  font-size: 14px;\r\n  line-height: 1.78;\r\n}\r\n\r\n@media (max-width: 767px) {\r\n  .cch-elevator-troubleshoot {\r\n    padding: 58px 20px 66px;\r\n  }\r\n\r\n  .cch-elevator-troubleshoot h2 {\r\n    font-size: 32px;\r\n  }\r\n\r\n  .cch-elevator-troubleshoot-lead {\r\n    font-size: 17px;\r\n  }\r\n\r\n  .cch-elevator-troubleshoot-prose {\r\n    font-size: 15px;\r\n    line-height: 1.82;\r\n  }\r\n\r\n  .cch-elevator-troubleshoot-row {\r\n    grid-template-columns: 36px 1fr;\r\n    gap: 7px 12px;\r\n  }\r\n\r\n  .cch-elevator-troubleshoot-text {\r\n    grid-column: 2;\r\n  }\r\n\r\n  .cch-elevator-maintenance-point {\r\n    grid-template-columns: 1fr;\r\n    gap: 6px;\r\n  }\r\n\r\n  .cch-elevator-troubleshoot-note {\r\n    padding-left: 18px;\r\n  }\r\n\r\n  .cch-elevator-troubleshoot-service {\r\n    padding: 20px 19px;\r\n  }\r\n}\r\n<\/style>\r\n\r\n<section class=\"cch-elevator-troubleshoot\">\r\n\r\n  <div class=\"cch-elevator-troubleshoot-inner\">\r\n\r\n    <div class=\"cch-elevator-troubleshoot-number\">\r\n      07 \u00b7 Maintenance &amp; Troubleshooting\r\n    <\/div>\r\n\r\n    <h2>\r\n      Why an Elevator Door Keeps Reopening:\r\n      Light Curtain Troubleshooting Principles\r\n    <\/h2>\r\n\r\n    <p class=\"cch-elevator-troubleshoot-lead\">\r\n      Repeated or unexplained door reopening does not automatically mean the\r\n      light curtain itself has failed. The cause may be optical, mechanical,\r\n      electrical or related to the surrounding door-control system.\r\n    <\/p>\r\n\r\n    <div class=\"cch-elevator-troubleshoot-prose\">\r\n\r\n      <p>\r\n        A useful diagnosis starts by identifying whether the reopening signal\r\n        is caused by a genuine obstruction, unstable optical detection, sensor\r\n        movement, cable or interface problems, or a fault elsewhere in the\r\n        elevator door system.\r\n      <\/p>\r\n\r\n      <p>\r\n        The objective is to separate the\r\n        <strong>observed symptom<\/strong> from the\r\n        <strong>actual source of the signal<\/strong> before replacing parts.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-troubleshoot-list\">\r\n\r\n      <div class=\"cch-elevator-troubleshoot-row\">\r\n\r\n        <div class=\"cch-elevator-troubleshoot-index\">01<\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-title\">\r\n          Contaminated Optical Surfaces\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-text\">\r\n          Dust, fingerprints, residue or other contamination on the optical\r\n          surfaces can reduce signal quality or create intermittent detection\r\n          problems. Cleaning methods should follow the product manufacturer&#8217;s\r\n          instructions.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-troubleshoot-row\">\r\n\r\n        <div class=\"cch-elevator-troubleshoot-index\">02<\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-title\">\r\n          Misalignment or Mounting Movement\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-text\">\r\n          Repeated door movement, loose brackets or mechanical damage can alter\r\n          transmitter and receiver alignment. A problem that appears only at\r\n          certain points in door travel may indicate a mechanical or alignment\r\n          issue rather than a permanently blocked doorway.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-troubleshoot-row\">\r\n\r\n        <div class=\"cch-elevator-troubleshoot-index\">03<\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-title\">\r\n          Cable or Connector Problems\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-text\">\r\n          Moving cables and connectors are exposed to repeated motion and\r\n          mechanical stress. Intermittent connection problems can create\r\n          symptoms that resemble optical obstruction or sensor failure.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-troubleshoot-row\">\r\n\r\n        <div class=\"cch-elevator-troubleshoot-index\">04<\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-title\">\r\n          Optical Interference or Reflections\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-text\">\r\n          Strong light, reflective surfaces or nearby optical devices may affect\r\n          some sensor designs. Whether this is relevant depends on the specific\r\n          light curtain and installation, so the exact product documentation\r\n          should be checked.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-troubleshoot-row\">\r\n\r\n        <div class=\"cch-elevator-troubleshoot-index\">05<\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-title\">\r\n          Door or Sensor Geometry\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-text\">\r\n          Door-panel movement, trim, brackets or other parts of the installation\r\n          can enter the detection field if the sensor geometry changes or the\r\n          original mounting arrangement has been disturbed.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-troubleshoot-row\">\r\n\r\n        <div class=\"cch-elevator-troubleshoot-index\">06<\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-title\">\r\n          Interface or Controller Fault\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-text\">\r\n          A door that repeatedly reopens may also be responding to a controller,\r\n          interface module or wiring problem. The sensor should not be assumed\r\n          to be the root cause until the complete signal path has been checked.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n\r\n      <div class=\"cch-elevator-troubleshoot-row\">\r\n\r\n        <div class=\"cch-elevator-troubleshoot-index\">07<\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-title\">\r\n          Internal Device Fault\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-troubleshoot-text\">\r\n          If the product provides diagnostic indicators or fault codes, these\r\n          should be interpreted using the manufacturer&#8217;s documentation before\r\n          the light curtain is replaced.\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-troubleshoot-table-wrap\">\r\n\r\n      <table class=\"cch-elevator-troubleshoot-table\">\r\n\r\n        <thead>\r\n          <tr>\r\n            <th>Observed Symptom<\/th>\r\n            <th>Possible Areas to Investigate<\/th>\r\n          <\/tr>\r\n        <\/thead>\r\n\r\n        <tbody>\r\n\r\n          <tr>\r\n            <td>Door repeatedly reopens with no visible obstruction<\/td>\r\n            <td>\r\n              Optical contamination, alignment, reflections, cable movement,\r\n              interface faults or controller inputs.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n          <tr>\r\n            <td>Problem occurs only while the door is moving<\/td>\r\n            <td>\r\n              Moving cable, connector strain, sensor movement, bracket\r\n              movement or changing optical geometry.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n          <tr>\r\n            <td>Problem occurs at one specific door position<\/td>\r\n            <td>\r\n              Local interference, mechanical obstruction, alignment change or\r\n              a component entering the monitored field.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n          <tr>\r\n            <td>Light curtain appears normal but door behavior is incorrect<\/td>\r\n            <td>\r\n              Door operator, controller logic, interface module or wiring\r\n              outside the sensor itself.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n          <tr>\r\n            <td>Fault appears after replacement<\/td>\r\n            <td>\r\n              Interface compatibility, power supply, mounting geometry,\r\n              commissioning or configuration of the replacement system.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n          <tr>\r\n            <td>Intermittent fault after long service<\/td>\r\n            <td>\r\n              Contamination, mechanical wear, damaged moving cable, loose\r\n              connections, sensor movement or internal device deterioration.\r\n            <\/td>\r\n          <\/tr>\r\n\r\n        <\/tbody>\r\n\r\n      <\/table>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-maintenance\">\r\n\r\n      <div class=\"cch-elevator-maintenance-label\">\r\n        Maintenance Principles\r\n      <\/div>\r\n\r\n      <h3>\r\n        Use the Manufacturer&#8217;s Service Requirements, Not a Generic Schedule\r\n      <\/h3>\r\n\r\n      <p>\r\n        Maintenance intervals and inspection procedures should come from the\r\n        elevator manufacturer, door-system documentation, light-curtain\r\n        manufacturer and the requirements governing the lift. A universal\r\n        monthly, quarterly or annual schedule should not be invented for every\r\n        elevator light curtain.\r\n      <\/p>\r\n\r\n      <div class=\"cch-elevator-maintenance-points\">\r\n\r\n        <div class=\"cch-elevator-maintenance-point\">\r\n          <div class=\"cch-elevator-maintenance-point-title\">\r\n            Optical Surfaces\r\n          <\/div>\r\n          <div class=\"cch-elevator-maintenance-point-text\">\r\n            Keep them in the condition specified by the manufacturer and use\r\n            approved cleaning methods.\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-maintenance-point\">\r\n          <div class=\"cch-elevator-maintenance-point-title\">\r\n            Mounting\r\n          <\/div>\r\n          <div class=\"cch-elevator-maintenance-point-text\">\r\n            Check for damage, movement or conditions that can change optical\r\n            alignment or the monitored doorway geometry.\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-maintenance-point\">\r\n          <div class=\"cch-elevator-maintenance-point-title\">\r\n            Cables &amp; Connectors\r\n          <\/div>\r\n          <div class=\"cch-elevator-maintenance-point-text\">\r\n            Pay particular attention to parts exposed to repeated door movement\r\n            or mechanical stress.\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-maintenance-point\">\r\n          <div class=\"cch-elevator-maintenance-point-title\">\r\n            Diagnostics\r\n          <\/div>\r\n          <div class=\"cch-elevator-maintenance-point-text\">\r\n            Record recurring fault indications rather than simply resetting the\r\n            system without identifying the cause.\r\n          <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"cch-elevator-maintenance-point\">\r\n          <div class=\"cch-elevator-maintenance-point-title\">\r\n            Door-System Response\r\n          <\/div>\r\n          <div class=\"cch-elevator-maintenance-point-text\">\r\n            Verification should consider the complete reopening response, not\r\n            only whether an indicator on the sensor changes state.\r\n          <\/div>\r\n        <\/div>\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-troubleshoot-note\">\r\n\r\n      <div class=\"cch-elevator-troubleshoot-note-label\">\r\n        Diagnostic Principle\r\n      <\/div>\r\n\r\n      <p>\r\n        <strong>Do not replace the light curtain only because the elevator door\r\n        keeps reopening.<\/strong>\r\n        First determine whether the reopening command originates from the\r\n        optical device, its wiring or interface, the mechanical installation or\r\n        another part of the door-control system.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-troubleshoot-service\">\r\n\r\n      <div class=\"cch-elevator-troubleshoot-service-label\">\r\n        Service Note\r\n      <\/div>\r\n\r\n      <strong>\r\n        Troubleshooting should follow the exact lift and product documentation.\r\n      <\/strong>\r\n\r\n      <p>\r\n        Do not bypass, disable or defeat a door-reopening device to keep an\r\n        elevator in service. Fault diagnosis, repair, testing and\r\n        return-to-service decisions should be performed by qualified lift\r\n        personnel under the requirements applicable to the installation.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n  <\/div>\r\n\r\n<\/section>\n\n\n\n<style>\r\n.cch-elevator-final {\r\n  box-sizing: border-box;\r\n  background: #ffffff;\r\n  padding: 78px 28px 90px;\r\n}\r\n\r\n.cch-elevator-final * {\r\n  box-sizing: border-box;\r\n}\r\n\r\n.cch-elevator-final-inner {\r\n  max-width: 920px;\r\n  margin: 0 auto;\r\n}\r\n\r\n.cch-elevator-final-number {\r\n  margin-bottom: 14px;\r\n  color: #129fe9;\r\n  font-size: 11px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .11em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-final h2 {\r\n  margin: 0;\r\n  color: #102431;\r\n  font-size: clamp(30px, 4vw, 44px);\r\n  line-height: 1.18;\r\n  font-weight: 800;\r\n  letter-spacing: -.025em;\r\n}\r\n\r\n.cch-elevator-final-lead {\r\n  margin: 22px 0 0;\r\n  color: #4f6572;\r\n  font-size: 18px;\r\n  line-height: 1.8;\r\n}\r\n\r\n\/* FAQ *\/\r\n.cch-elevator-faq {\r\n  margin-top: 42px;\r\n  border-top: 2px solid #173746;\r\n}\r\n\r\n.cch-elevator-faq-item {\r\n  border-bottom: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-faq-item summary {\r\n  position: relative;\r\n  list-style: none;\r\n  cursor: pointer;\r\n  padding: 23px 42px 23px 0;\r\n  color: #173041;\r\n  font-size: 16px;\r\n  line-height: 1.55;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-faq-item summary::-webkit-details-marker {\r\n  display: none;\r\n}\r\n\r\n.cch-elevator-faq-item summary::after {\r\n  content: \"+\";\r\n  position: absolute;\r\n  right: 4px;\r\n  top: 19px;\r\n  color: #129fe9;\r\n  font-size: 25px;\r\n  line-height: 1;\r\n  font-weight: 500;\r\n}\r\n\r\n.cch-elevator-faq-item[open] summary::after {\r\n  content: \"\u2013\";\r\n}\r\n\r\n.cch-elevator-faq-answer {\r\n  max-width: 820px;\r\n  padding: 0 0 24px;\r\n  color: #566c78;\r\n  font-size: 14px;\r\n  line-height: 1.82;\r\n}\r\n\r\n.cch-elevator-faq-answer p {\r\n  margin: 0 0 15px;\r\n}\r\n\r\n.cch-elevator-faq-answer p:last-child {\r\n  margin-bottom: 0;\r\n}\r\n\r\n.cch-elevator-faq-answer strong {\r\n  color: #173041;\r\n}\r\n\r\n\/* References *\/\r\n.cch-elevator-final-sources {\r\n  margin-top: 52px;\r\n  padding-top: 31px;\r\n  border-top: 2px solid #173746;\r\n}\r\n\r\n.cch-elevator-final-sources-label {\r\n  margin-bottom: 9px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-final-sources h3 {\r\n  margin: 0;\r\n  color: #173041;\r\n  font-size: 22px;\r\n  line-height: 1.4;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-final-sources-intro {\r\n  margin: 12px 0 0;\r\n  color: #526875;\r\n  font-size: 15px;\r\n  line-height: 1.82;\r\n}\r\n\r\n.cch-elevator-final-source-list {\r\n  margin-top: 24px;\r\n  border-top: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-final-source-item {\r\n  display: grid;\r\n  grid-template-columns: 210px 1fr;\r\n  gap: 22px;\r\n  padding: 18px 0;\r\n  border-bottom: 1px solid #e1e8ec;\r\n}\r\n\r\n.cch-elevator-final-source-name {\r\n  color: #173041;\r\n  font-size: 14px;\r\n  line-height: 1.55;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-final-source-text {\r\n  color: #5d727e;\r\n  font-size: 14px;\r\n  line-height: 1.76;\r\n}\r\n\r\n.cch-elevator-final-source-link {\r\n  color: #167ba8 !important;\r\n  font-weight: 750;\r\n  text-decoration: none !important;\r\n  border-bottom: 1px solid rgba(22,123,168,.28);\r\n}\r\n\r\n.cch-elevator-final-source-link:hover {\r\n  border-bottom-color: #167ba8;\r\n}\r\n\r\n\/* Scope note *\/\r\n.cch-elevator-final-scope {\r\n  margin-top: 48px;\r\n  padding: 28px 30px;\r\n  background: #f5f8fa;\r\n  border-left: 3px solid #129fe9;\r\n}\r\n\r\n.cch-elevator-final-scope-label {\r\n  margin-bottom: 8px;\r\n  color: #129fe9;\r\n  font-size: 10px;\r\n  line-height: 1.4;\r\n  font-weight: 850;\r\n  letter-spacing: .1em;\r\n  text-transform: uppercase;\r\n}\r\n\r\n.cch-elevator-final-scope h3 {\r\n  margin: 0;\r\n  color: #173041;\r\n  font-size: 19px;\r\n  line-height: 1.5;\r\n  font-weight: 800;\r\n}\r\n\r\n.cch-elevator-final-scope p {\r\n  margin: 12px 0 0;\r\n  color: #526875;\r\n  font-size: 14px;\r\n  line-height: 1.82;\r\n}\r\n\r\n.cch-elevator-final-scope strong {\r\n  color: #173041;\r\n}\r\n\r\n\/* Closing *\/\r\n.cch-elevator-final-closing {\r\n  margin-top: 42px;\r\n  padding-top: 27px;\r\n  border-top: 1px solid #dce5ea;\r\n}\r\n\r\n.cch-elevator-final-closing p {\r\n  margin: 0;\r\n  color: #667a85;\r\n  font-size: 13px;\r\n  line-height: 1.8;\r\n}\r\n\r\n@media (max-width: 767px) {\r\n  .cch-elevator-final {\r\n    padding: 58px 20px 70px;\r\n  }\r\n\r\n  .cch-elevator-final h2 {\r\n    font-size: 32px;\r\n  }\r\n\r\n  .cch-elevator-final-lead {\r\n    font-size: 17px;\r\n  }\r\n\r\n  .cch-elevator-faq-item summary {\r\n    padding-right: 36px;\r\n    font-size: 15px;\r\n  }\r\n\r\n  .cch-elevator-final-source-item {\r\n    grid-template-columns: 1fr;\r\n    gap: 5px;\r\n  }\r\n\r\n  .cch-elevator-final-scope {\r\n    padding: 23px 21px;\r\n  }\r\n}\r\n<\/style>\r\n\r\n<section class=\"cch-elevator-final\">\r\n\r\n  <div class=\"cch-elevator-final-inner\">\r\n\r\n    <div class=\"cch-elevator-final-number\">\r\n      08 \u00b7 FAQ &amp; References\r\n    <\/div>\r\n\r\n    <h2>\r\n      Elevator Light Curtain FAQ\r\n    <\/h2>\r\n\r\n    <p class=\"cch-elevator-final-lead\">\r\n      The questions below summarize the most important distinctions for\r\n      selecting, replacing and troubleshooting elevator door light curtains.\r\n    <\/p>\r\n\r\n\r\n    <div class=\"cch-elevator-faq\">\r\n\r\n      <details class=\"cch-elevator-faq-item\">\r\n\r\n        <summary>\r\n          What is an elevator door light curtain?\r\n        <\/summary>\r\n\r\n        <div class=\"cch-elevator-faq-answer\">\r\n\r\n          <p>\r\n            An elevator door light curtain is a non-contact optical obstruction\r\n            detection device installed across the elevator doorway. Multiple\r\n            optical paths monitor the opening, and interruption of the\r\n            monitored field provides a signal to the surrounding door-control\r\n            system.\r\n          <\/p>\r\n\r\n          <p>\r\n            The light curtain is one component of the door-reopening system;\r\n            the door operator and elevator controller determine how the signal\r\n            is used within the complete lift design.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/details>\r\n\r\n\r\n      <details class=\"cch-elevator-faq-item\">\r\n\r\n        <summary>\r\n          Is an elevator light curtain the same as a machinery safety light curtain?\r\n        <\/summary>\r\n\r\n        <div class=\"cch-elevator-faq-answer\">\r\n\r\n          <p>\r\n            <strong>No.<\/strong> The two product categories may use similar\r\n            optical principles, but they operate within different safety and\r\n            regulatory frameworks.\r\n          <\/p>\r\n\r\n          <p>\r\n            An elevator door light curtain is integrated into a lift-specific\r\n            door-reopening system. A machinery safety light curtain used on a\r\n            press, robot cell or production machine is normally evaluated\r\n            within machinery-safety frameworks such as IEC 61496, ISO 13849\r\n            and the machine&#8217;s overall risk assessment.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/details>\r\n\r\n\r\n      <details class=\"cch-elevator-faq-item\">\r\n\r\n        <summary>\r\n          Is a light curtain required on every elevator?\r\n        <\/summary>\r\n\r\n        <div class=\"cch-elevator-faq-answer\">\r\n\r\n          <p>\r\n            There is no single global answer that applies to every elevator.\r\n            Requirements depend on the lift type, installation date,\r\n            modernization scope, applicable code edition and local authority\r\n            having jurisdiction.\r\n          <\/p>\r\n\r\n          <p>\r\n            Existing installations may also be governed differently from new\r\n            lift installations. Compliance should therefore be assessed for\r\n            the actual lift rather than inferred from a general statement about\r\n            elevator light curtains.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/details>\r\n\r\n\r\n      <details class=\"cch-elevator-faq-item\">\r\n\r\n        <summary>\r\n          What is the difference between an elevator photocell and a light curtain?\r\n        <\/summary>\r\n\r\n        <div class=\"cch-elevator-faq-answer\">\r\n\r\n          <p>\r\n            A photocell typically monitors one or a limited number of optical\r\n            paths across the doorway. An elevator light curtain uses multiple\r\n            optical paths to create a broader detection field at different\r\n            positions across the opening.\r\n          <\/p>\r\n\r\n          <p>\r\n            This does not mean that one technology is automatically compliant\r\n            and the other is not. Suitability depends on the lift design and\r\n            the requirements governing the installation.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/details>\r\n\r\n\r\n      <details class=\"cch-elevator-faq-item\">\r\n\r\n        <summary>\r\n          Can an older elevator be retrofitted with a light curtain?\r\n        <\/summary>\r\n\r\n        <div class=\"cch-elevator-faq-answer\">\r\n\r\n          <p>\r\n            In many cases, elevator door-reopening devices can be modernized,\r\n            but retrofit suitability has to be evaluated against the actual\r\n            door operator, controller, mounting geometry, electrical\r\n            interface, operating logic and applicable lift requirements.\r\n          <\/p>\r\n\r\n          <p>\r\n            A modern light curtain should not be treated as a universal\r\n            drop-in replacement simply because its physical dimensions are\r\n            similar to the old device.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/details>\r\n\r\n\r\n      <details class=\"cch-elevator-faq-item\">\r\n\r\n        <summary>\r\n          How many beams does an elevator light curtain need?\r\n        <\/summary>\r\n\r\n        <div class=\"cch-elevator-faq-answer\">\r\n\r\n          <p>\r\n            There is no universal beam-count rule that can be applied\r\n            independently of the required detection performance, product\r\n            design, mounting geometry and applicable lift requirements.\r\n          <\/p>\r\n\r\n          <p>\r\n            A higher number of optical paths can change detection density, but\r\n            <strong>beam count alone does not establish compliance or\r\n            suitability<\/strong>. The actual detection coverage and performance\r\n            of the complete installed device need to be considered.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/details>\r\n\r\n\r\n      <details class=\"cch-elevator-faq-item\">\r\n\r\n        <summary>\r\n          Why does an elevator door keep reopening when nothing is in the doorway?\r\n        <\/summary>\r\n\r\n        <div class=\"cch-elevator-faq-answer\">\r\n\r\n          <p>\r\n            Possible causes include contaminated optical surfaces, sensor\r\n            misalignment, mounting movement, damaged cables or connectors,\r\n            optical interference, mechanical parts entering the detection\r\n            field, interface faults or problems elsewhere in the door-control\r\n            system.\r\n          <\/p>\r\n\r\n          <p>\r\n            The light curtain should not automatically be replaced until the\r\n            source of the reopening signal has been identified.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/details>\r\n\r\n\r\n      <details class=\"cch-elevator-faq-item\">\r\n\r\n        <summary>\r\n          Which elevator standards apply in Europe and North America?\r\n        <\/summary>\r\n\r\n        <div class=\"cch-elevator-faq-answer\">\r\n\r\n          <p>\r\n            In Europe, EN 81-20 has been a major reference for passenger and\r\n            goods-passenger lift safety, while the standards framework is\r\n            moving toward EN ISO 8100-1:2026 following publication of\r\n            ISO 8100-1:2026.\r\n          <\/p>\r\n\r\n          <p>\r\n            In North America, ASME A17.1 \/ CSA B44 provides the principal\r\n            elevator and escalator safety-code framework, with ASME\r\n            A17.1-2025 being the current published ASME edition.\r\n          <\/p>\r\n\r\n          <p>\r\n            The newest published edition is not necessarily the edition legally\r\n            adopted for every location or applicable to every existing lift.\r\n            National adoption, local codes, installation date and modernization\r\n            scope must be checked for the actual project.\r\n          <\/p>\r\n\r\n        <\/div>\r\n\r\n      <\/details>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-final-sources\">\r\n\r\n      <div class=\"cch-elevator-final-sources-label\">\r\n        Official Standards References\r\n      <\/div>\r\n\r\n      <h3>\r\n        Sources for Further Verification\r\n      <\/h3>\r\n\r\n      <p class=\"cch-elevator-final-sources-intro\">\r\n        Lift standards and local adoption requirements can change. For design,\r\n        modernization or compliance decisions, verify the current official\r\n        publication and the requirements adopted in the installation\r\n        jurisdiction.\r\n      <\/p>\r\n\r\n\r\n      <div class=\"cch-elevator-final-source-list\">\r\n\r\n\r\n        <div class=\"cch-elevator-final-source-item\">\r\n\r\n          <div class=\"cch-elevator-final-source-name\">\r\n            ISO 8100-1:2026\r\n          <\/div>\r\n\r\n          <div class=\"cch-elevator-final-source-text\">\r\n            International safety rules for construction and installation of\r\n            passenger and goods-passenger lifts.\r\n            <a class=\"cch-elevator-final-source-link\" href=\"https:\/\/www.iso.org\/standard\/80553.html\" target=\"_blank\" rel=\"noopener\">\r\n              ISO official publication \u2192\r\n            <\/a>\r\n          <\/div>\r\n\r\n        <\/div>\r\n\r\n\r\n        <div class=\"cch-elevator-final-source-item\">\r\n\r\n          <div class=\"cch-elevator-final-source-name\">\r\n            BS EN ISO 8100-1:2026\r\n          <\/div>\r\n\r\n          <div class=\"cch-elevator-final-source-text\">\r\n            British publication implementing EN ISO 8100-1:2026 and identical\r\n            to ISO 8100-1:2026.\r\n            <a class=\"cch-elevator-final-source-link\" href=\"https:\/\/knowledge.bsigroup.com\/products\/lifts-for-the-transport-of-persons-and-goods-safety-rules-for-the-construction-and-installation-of-passenger-and-goods-passenger-lifts-3\" target=\"_blank\" rel=\"noopener\">\r\n              BSI official publication \u2192\r\n            <\/a>\r\n          <\/div>\r\n\r\n        <\/div>\r\n\r\n\r\n        <div class=\"cch-elevator-final-source-item\">\r\n\r\n          <div class=\"cch-elevator-final-source-name\">\r\n            ASME A17.1-2025 \/ CSA B44\r\n          <\/div>\r\n\r\n          <div class=\"cch-elevator-final-source-text\">\r\n            North American Safety Code for Elevators and Escalators covering\r\n            design, installation, inspection, testing, maintenance, alteration\r\n            and repair.\r\n            <a class=\"cch-elevator-final-source-link\" href=\"https:\/\/www.asme.org\/codes-standards\/find-codes-standards\/safety-code-for-elevators-and-escalators\" target=\"_blank\" rel=\"noopener\">\r\n              ASME official publication \u2192\r\n            <\/a>\r\n          <\/div>\r\n\r\n        <\/div>\r\n\r\n\r\n      <\/div>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-final-scope\">\r\n\r\n      <div class=\"cch-elevator-final-scope-label\">\r\n        CCH Product Scope\r\n      <\/div>\r\n\r\n      <h3>\r\n        Elevator Door Light Curtains and Industrial Safety Light Curtains\r\n        Should Be Kept Separate\r\n      <\/h3>\r\n\r\n      <p>\r\n        <strong>CCH currently does not present the ENT industrial safety light\r\n        curtain family as a dedicated elevator-door reopening product.<\/strong>\r\n        ENT products are intended for industrial machinery safeguarding and\r\n        should not automatically be represented as compliant with lift-specific\r\n        door-reopening requirements.\r\n      <\/p>\r\n\r\n      <p>\r\n        This article is therefore provided as an educational reference on\r\n        elevator door light curtains, replacement considerations and lift-code\r\n        context. It should not be interpreted as a statement that current ENT\r\n        models have been assessed or approved for passenger or goods-passenger\r\n        elevator door applications.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n\r\n    <div class=\"cch-elevator-final-closing\">\r\n\r\n      <p>\r\n        Updated September 2026. This guide provides general engineering and\r\n        standards context and does not replace the lift manufacturer&#8217;s\r\n        documentation, qualified elevator personnel, inspection requirements\r\n        or decisions of the authority having jurisdiction.\r\n      <\/p>\r\n\r\n    <\/div>\r\n\r\n  <\/div>\r\n\r\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Lift Engineering Guide Door Reopening Devices Codes &amp; Selection Updated September 2026 Elevator Door Light Curtains: How They Work, Codes &amp; Selection Elevator door light curtains create a non-contact optical detection field across the doorway so that the door system can detect a person or object and respond according to the lift&#8217;s door-reopening logic. They [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":1879,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[8],"tags":[],"class_list":["post-1875","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elevator-light-curtain-blogs"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"_links":{"self":[{"href":"https:\/\/industrialsafetysensor.com\/pt\/wp-json\/wp\/v2\/posts\/1875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/industrialsafetysensor.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/industrialsafetysensor.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/industrialsafetysensor.com\/pt\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/industrialsafetysensor.com\/pt\/wp-json\/wp\/v2\/comments?post=1875"}],"version-history":[{"count":0,"href":"https:\/\/industrialsafetysensor.com\/pt\/wp-json\/wp\/v2\/posts\/1875\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/industrialsafetysensor.com\/pt\/wp-json\/wp\/v2\/media\/1879"}],"wp:attachment":[{"href":"https:\/\/industrialsafetysensor.com\/pt\/wp-json\/wp\/v2\/media?parent=1875"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/industrialsafetysensor.com\/pt\/wp-json\/wp\/v2\/categories?post=1875"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/industrialsafetysensor.com\/pt\/wp-json\/wp\/v2\/tags?post=1875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}