{"id":703,"date":"2015-11-04T15:38:24","date_gmt":"2015-11-04T14:38:24","guid":{"rendered":"http:\/\/jes-2015.projekt.gastropoint.com\/en\/?post_type=portfolio&#038;p=703"},"modified":"2015-11-05T22:05:34","modified_gmt":"2015-11-05T21:05:34","slug":"text-extractive-visibility-and-gas-monitoring-system","status":"publish","type":"portfolio","link":"https:\/\/www.tunnelsicherheit.at\/en\/product\/text-extractive-visibility-and-gas-monitoring-system\/","title":{"rendered":"t\/EXT Extractive visibility and gas monitoring system"},"content":{"rendered":"<div  class='flex_column av-av_one_full-2a9015ff38129c418a3f2eafba3e9512 av_one_full  avia-builder-el-0  el_before_av_three_fourth  avia-builder-el-first  first flex_column_div  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_image-59c66d5ee3070cb293f58586f91af34c\">\n.avia-image-container.av-av_image-59c66d5ee3070cb293f58586f91af34c img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-av_image-59c66d5ee3070cb293f58586f91af34c .av-image-caption-overlay-center{\ncolor:#ffffff;\n}\n<\/style>\n<div  class='avia-image-container av-av_image-59c66d5ee3070cb293f58586f91af34c av-styling- avia-align-center  avia-builder-el-1  avia-builder-el-no-sibling '   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-850 avia-img-lazy-loading-not-850 avia_image ' src=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/t_COVISext_Slider.jpg?fit=1210%2C564&ssl=1\" alt='' title='t_COVISext_Slider'  height=\"564\" width=\"1210\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/t_COVISext_Slider.jpg?w=1210&amp;ssl=1 1210w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/t_COVISext_Slider.jpg?resize=300%2C140&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/t_COVISext_Slider.jpg?resize=1030%2C480&amp;ssl=1 1030w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/t_COVISext_Slider.jpg?resize=705%2C329&amp;ssl=1 705w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/t_COVISext_Slider.jpg?resize=450%2C210&amp;ssl=1 450w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/t_COVISext_Slider.jpg?resize=800%2C373&amp;ssl=1 800w\" sizes=\"(max-width: 1210px) 100vw, 1210px\" \/><\/div><\/div><\/div><\/div>\n<div  class='flex_column av-av_three_fourth-2a9015ff38129c418a3f2eafba3e9512 av_three_fourth  avia-builder-el-2  el_after_av_one_full  el_before_av_one_fourth  first flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-e2f5dea9e76b5656f1baa42142b3d148\">\n#top .av-special-heading.av-av_heading-e2f5dea9e76b5656f1baa42142b3d148{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-e2f5dea9e76b5656f1baa42142b3d148 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-e2f5dea9e76b5656f1baa42142b3d148 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-e2f5dea9e76b5656f1baa42142b3d148 av-special-heading-h3  avia-builder-el-3  el_before_av_textblock  avia-builder-el-first '><h3 class='av-special-heading-tag '  itemprop=\"headline\"  >Extractive visibility and gas monitoring<\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<section  class='av_textblock_section av-av_textblock-0366cc7376be6c9e82a3e9cc8987b64f '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Visibility and gas monitoring are used to control the tunnel ventilation at normal operation. If and with how much power artificial ventilation by jet fans is operated depends on the measured visibility.<\/p>\n<p>The extractive monitoring system extracts air from the tunnel through an intake system and feeds it into the visibility sensor and gas analyser.<\/p>\n<p>The electrochemical CO gas analyser measures the concentration of CO gas in the inducted air and periodically performs an automatic calibration with zero and reference gas to ensure long term stability and accuracy.<\/p>\n<p>The visibility sensor measures the intensity of light scattered at an angle of 30\u00b0 by the inducted air and sets it into relation with the light passing through. The scattered light intensity is then multiplied by a factor to obtain the extinction coefficient.<\/p>\n<\/div><\/section><\/p><\/div>\n<div  class='flex_column av-av_one_fourth-b51168870d26eac9084c0e2dc495efe0 av_one_fourth  avia-builder-el-5  el_after_av_three_fourth  el_before_av_three_fourth  flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-d201d6bab09f73f6e130b139cca1b042\">\n#top .av-special-heading.av-av_heading-d201d6bab09f73f6e130b139cca1b042{\npadding-bottom:0;\n}\nbody .av-special-heading.av-av_heading-d201d6bab09f73f6e130b139cca1b042 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-d201d6bab09f73f6e130b139cca1b042 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-d201d6bab09f73f6e130b139cca1b042 av-special-heading-h3  avia-builder-el-6  el_before_av_promobox  avia-builder-el-first '><h3 class='av-special-heading-tag '  itemprop=\"headline\"  >Request a quote<\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<div  class='av_promobox av-av_promobox-3255573327c452d2b6566b62d1e798bc avia-button-no  avia-builder-el-7  el_after_av_heading  el_before_av_button_big  avia-builder-el-last '><div class='avia-promocontent'><p>\nWould you like to request a quote for any of our products or services?<\/p>\n<p>Please click below and leave your details. We will contact you as soon as possible.<\/p>\n<\/div><\/div><br \/>\n<div  class='avia-button-wrap avia-button-center  avia-builder-el-8  el_after_av_promobox  avia-builder-el-last '>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_button_big-8ffa2cfb9983f1834ce925e499fdf35f\">\n#top #wrap_all .avia-button.av-av_button_big-8ffa2cfb9983f1834ce925e499fdf35f:hover{\ncolor:#ffffff;\ntransition:all 0.4s ease-in-out;\n}\n#top #wrap_all .avia-button.av-av_button_big-8ffa2cfb9983f1834ce925e499fdf35f:hover .avia-svg-icon svg:first-child{\nfill:#ffffff;\nstroke:#ffffff;\n}\n<\/style>\n<a href='https:\/\/www.tunnelsicherheit.at\/en\/contact\/inquiry\/' class='avia-color-theme-color avia-button avia-button-fullwidth av-av_button_big-8ffa2cfb9983f1834ce925e499fdf35f avia-icon_select-no avia-color-theme-color'   aria-label=\"Request\"><span class='avia_iconbox_title' >Request<\/span><span class='avia_button_background avia-button avia-button-fullwidth avia-color-theme-color'><\/span><\/a><\/div><\/p><\/div><div  class='flex_column av-av_three_fourth-2a9015ff38129c418a3f2eafba3e9512 av_three_fourth  avia-builder-el-9  el_after_av_one_fourth  el_before_av_one_fourth  first flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-f930405c08fd9f94d5d438e99f80a9b5\">\n#top .av-special-heading.av-av_heading-f930405c08fd9f94d5d438e99f80a9b5{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-f930405c08fd9f94d5d438e99f80a9b5 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-f930405c08fd9f94d5d438e99f80a9b5 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-f930405c08fd9f94d5d438e99f80a9b5 av-special-heading-h3  avia-builder-el-10  el_before_av_tab_container  avia-builder-el-first '><h3 class='av-special-heading-tag '  itemprop=\"headline\"  >t\/EXT Extractive visibility and gas monitoring system<\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<div  class='tabcontainer av-av_tab_container-0bacd910096d11a3cec6dfb538798966 top_tab  avia-builder-el-11  el_after_av_heading  avia-builder-el-last '>\n<section class='av_tab_section av_tab_section av-av_tab-895601837336bb1fcf0f4f65d0af59aa'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div id='tab-id-1-tab' class='tab active_tab' role='tab' aria-selected=\"true\" tabindex=\"0\" data-fake-id='#tab-id-1' aria-controls='tab-id-1-content'  itemprop=\"headline\" ><span class='tab_icon avia-iconfont avia-font-entypo-fontello' data-av_icon='\ue81e' data-av_iconfont='entypo-fontello' ><\/span>Merkmale<\/div><div id='tab-id-1-content' class='tab_content active_tab_content' role='tabpanel' aria-labelledby='tab-id-1-tab' aria-hidden=\"false\"><div class='tab_inner_content invers-color'  itemprop=\"text\" ><ul>\n<li><strong>Extraction of air to be analysed from the tunnel\u2019s driving area<\/strong> through an intake system<\/li>\n<li><strong>Sensors located in an accessible room outside the driving area<\/strong>, e.g. in a niche, a crosscut, an operating room inside or outside the tunnel<\/li>\n<li>Control and evaluation unit to display measured values and with signal outputs to the tunnel control system<\/li>\n<li>Electrochemical gas analyser with <strong>automatic calibration of zero and reference value<\/strong><\/li>\n<li>Visibility measurement using scattered light method with<strong> integrated fog compensation<\/strong><\/li>\n<li>Intake tube length up to 400 m<\/li>\n<li><strong>Monitoring of up to 4 measuring points through one monitoring system<\/strong><\/li>\n<li>Delivered in an enclosure with all wiring, pumps and tubes ready for operation incl. zero and reference gas<\/li>\n<\/ul>\n<\/div><\/div><\/section>\n<section class='av_tab_section av_tab_section av-av_tab-b91f69621deff9b1c4b071eeed6ee956'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div id='tab-id-2-tab' class='tab' role='tab' aria-selected=\"false\" tabindex=\"0\" data-fake-id='#tab-id-2' aria-controls='tab-id-2-content'  itemprop=\"headline\" ><span class='tab_icon avia-iconfont avia-font-entypo-fontello' data-av_icon='\ue856' data-av_iconfont='entypo-fontello' ><\/span>System<\/div><div id='tab-id-2-content' class='tab_content' role='tabpanel' aria-labelledby='tab-id-2-tab' aria-hidden=\"true\"><div class='tab_inner_content invers-color'  itemprop=\"text\" ><ul>\n<li><strong>Electrochemical gas analyser with automatic calibration<\/strong><\/li>\n<li><strong>Visibility sensor based on scattered light method<\/strong><\/li>\n<li>Operating unit<\/li>\n<li>Zero and reference gas<\/li>\n<li>Intake fan<\/li>\n<li>All components above installed in an enclosure ready for operation<\/li>\n<li>Intake system consisting of intake point to be mounted in the tunnel and intake tube system to connect with the monitoring system in the enclosure<\/li>\n<\/ul>\n<\/div><\/div><\/section>\n<section class='av_tab_section av_tab_section av-av_tab-20d926c1a4c6440510992b900c48deca'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div id='tab-id-3-tab' class='tab' role='tab' aria-selected=\"false\" tabindex=\"0\" data-fake-id='#tab-id-3' aria-controls='tab-id-3-content'  itemprop=\"headline\" ><span class='tab_icon avia-iconfont avia-font-entypo-fontello' data-av_icon='\ue82b' data-av_iconfont='entypo-fontello' ><\/span>Vorteile<\/div><div id='tab-id-3-content' class='tab_content' role='tabpanel' aria-labelledby='tab-id-3-tab' aria-hidden=\"true\"><div class='tab_inner_content invers-color'  itemprop=\"text\" ><ul>\n<li>Specifically designed for application in tunnels which require high availability<\/li>\n<li><strong>Highest availability of tunnel<\/strong> as all important components of the monitoring system are located in accessible rooms<br \/>\n(no need to close the tunnel for traffic)<\/li>\n<li><strong>No electronic components in the tunnel\u2019s driving area<\/strong><\/li>\n<li>Robust, corrosion-free intake cowls with protection against ingress of water<\/li>\n<li>Automatic calibration and high accuracy of measurement<\/li>\n<li>Flexible integration into the tunnel control system<\/li>\n<\/ul>\n<\/div><\/div><\/section>\n<section class='av_tab_section av_tab_section av-av_tab-f8ef8fda36c53f4cb942dae7ae9e5b4e'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div id='tab-id-4-tab' class='tab' role='tab' aria-selected=\"false\" tabindex=\"0\" data-fake-id='#tab-id-4' aria-controls='tab-id-4-content'  itemprop=\"headline\" ><span class='tab_icon avia-iconfont avia-font-entypo-fontello' data-av_icon='\ue84b' data-av_iconfont='entypo-fontello' ><\/span>Technical Specifications<\/div><div id='tab-id-4-content' class='tab_content' role='tabpanel' aria-labelledby='tab-id-4-tab' aria-hidden=\"true\"><div class='tab_inner_content invers-color'  itemprop=\"text\" ><table class=\"table_default\" width=\"100%\">\n<tbody>\n<tr>\n<th colspan=\"2\">CO measurement<\/th>\n<\/tr>\n<tr>\n<td width=\"25%\">Measuring method<\/td>\n<td>Electrochemical gas analysis<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Measured value<\/td>\n<td>Gas concentration in ppm CO<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Measuring range<\/td>\n<td>e.g. 0 .. 200 ppm CO (according RVS 09.02.22)<br \/>\nOther gases and measuring ranges on request<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Accuracy<\/td>\n<td>\u00b1 2 % of end of measuring range<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">T90 response time<\/td>\n<td>45 s<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table class=\"table_default\" width=\"100%\">\n<tbody>\n<tr>\n<th colspan=\"2\">Visibility measurement<\/th>\n<\/tr>\n<tr>\n<td width=\"25%\">Measuring method<\/td>\n<td>30\u00b0 scattered light intensity<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Measured value<\/td>\n<td>0 .. 100 PLA<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Measuring range<\/td>\n<td>0 .. 0,015 E\/m<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Resolution<\/td>\n<td>&lt; \u00b1 0,25 % of end of measuring range<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Air flow<\/td>\n<td>25 to 30 l\/min<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Temperature<\/td>\n<td>-20 \u00b0C to +50 \u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table class=\"table_default\" width=\"100%\">\n<tbody>\n<tr>\n<th colspan=\"2\">Power supply<\/th>\n<\/tr>\n<tr>\n<td width=\"25%\">Operating voltage<\/td>\n<td>230 VAC, 50 Hz<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Power consumption<\/td>\n<td>Depends on individual system<br \/>\n(Number of measuring points, length of intake system)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table class=\"table_default\" width=\"100%\">\n<tbody>\n<tr>\n<th colspan=\"2\">Outputs<\/th>\n<\/tr>\n<tr>\n<td width=\"25%\">Analogue outputs<\/td>\n<td>2 x 4 \u2013 20 mA (CO and visibility) per measuring point<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Digital interface<\/td>\n<td>RS-485 MODBUS RTU<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Isolated contacts<\/td>\n<td>1 x Operation\/Fault indication<br \/>\n1 x Calibration active<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table class=\"table_default\" width=\"100%\">\n<tbody>\n<tr>\n<th colspan=\"2\">Conformities<\/th>\n<\/tr>\n<tr>\n<td width=\"25%\">Electrical standards<\/td>\n<td>2006\/95\/EC Low Voltage Directive (LVD)<br \/>\n2004\/108\/EC Electromagnetic compatibility(EMC)<br \/>\nIEC 61326-1:2012<br \/>\nIEC 61010-1:2010<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Road safety standards<\/td>\n<td>AT: RVS 09.02.22<br \/>\nDE: RABT 2006<br \/>\nCH: ASTRA RL 13001, Fachhandbuch BSA<\/td>\n<\/tr>\n<tr>\n<td width=\"25%\">Gas measurement<\/td>\n<td>AT: \u00d6NORM M9418, \u00d6NORM M9419<br \/>\nDE: VDI 2053<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div><\/div><\/section>\n<\/div><\/p><\/div><\/p>\n<div  class='flex_column av-av_one_fourth-b51168870d26eac9084c0e2dc495efe0 av_one_fourth  avia-builder-el-12  el_after_av_three_fourth  el_before_av_three_fourth  flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-ac1d4f4731a2da0d2c1ade4ad629e769\">\n#top .av-special-heading.av-av_heading-ac1d4f4731a2da0d2c1ade4ad629e769{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-ac1d4f4731a2da0d2c1ade4ad629e769 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-ac1d4f4731a2da0d2c1ade4ad629e769 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-ac1d4f4731a2da0d2c1ade4ad629e769 av-special-heading-h3  avia-builder-el-13  el_before_av_font_icon  avia-builder-el-first '><h3 class='av-special-heading-tag '  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data-av_iconfont='entypo-fontello' aria-hidden=\"false\" ><\/a><span class='av_icon_caption av-special-font'>Product info EN (PDF, 390 kB)<\/span><\/span><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_hr-a6de236e6c183bbbd700292deacd2b52\">\n#top .hr.hr-invisible.av-av_hr-a6de236e6c183bbbd700292deacd2b52{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-av_hr-a6de236e6c183bbbd700292deacd2b52 hr-invisible  avia-builder-el-17  el_after_av_font_icon  el_before_av_heading '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-a216327adb0119bca98632e3820ef099\">\n#top .av-special-heading.av-av_heading-a216327adb0119bca98632e3820ef099{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-a216327adb0119bca98632e3820ef099 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-a216327adb0119bca98632e3820ef099 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-a216327adb0119bca98632e3820ef099 av-special-heading-h3  avia-builder-el-18  el_after_av_hr  el_before_av_codeblock '><h3 class='av-special-heading-tag '  itemprop=\"headline\"  >Share<\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<\/p><\/div>\n<div  class='flex_column av-av_three_fourth-2a9015ff38129c418a3f2eafba3e9512 av_three_fourth  avia-builder-el-20  el_after_av_one_fourth  el_before_av_one_fourth  first flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-0933ba3e6ec0dbed3e6854883544a829\">\n#top .av-special-heading.av-av_heading-0933ba3e6ec0dbed3e6854883544a829{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-0933ba3e6ec0dbed3e6854883544a829 .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-0933ba3e6ec0dbed3e6854883544a829 .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-0933ba3e6ec0dbed3e6854883544a829 av-special-heading-h3  avia-builder-el-21  el_before_av_image_hotspot  avia-builder-el-no-sibling '><h3 class='av-special-heading-tag '  itemprop=\"headline\"  >System setup<\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-sub-av-av_image_hotspot-16ce94a7b54e32d150d9d49fd9e942fb\">\n.av-hotspot-image-container .av-image-hotspot.av-av_image_spot-64261a6fa2795cc815b09145621bd80d{\ntop:45%;\nleft:36.2%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-av_image_spot-7315d26f4772643003fe33e7fd7acab5{\ntop:27.5%;\nleft:47.6%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-av_image_spot-425e8231038f0b23115d433ba9795336{\ntop:32%;\nleft:53.9%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-av_image_spot-08bd51cd8b5690818ce93d77000a6fd7{\ntop:45.7%;\nleft:65.1%;\n}\n.av-hotspot-image-container .av-image-hotspot.av-av_image_spot-4e4de4cdc707a7833e59b9569d626da0{\ntop:59.5%;\nleft:42.7%;\n}\n<\/style>\n<div  class='av-hotspot-image-container av-av_image_hotspot-16ce94a7b54e32d150d9d49fd9e942fb  avia-builder-el-22  el_after_av_heading  avia-builder-el-last  av-hotspot-numbered av-mobile-fallback-active  av-non-fullwidth-hotspot-image'  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class='av-hotspot-container'><div class='av-hotspot-container-inner-cell'><div class='av-hotspot-container-inner-wrap'><div class='av-image-hotspot av-av_image_spot-64261a6fa2795cc815b09145621bd80d av-image-hotspot-1 ' data-avia-tooltip-position='right' data-avia-tooltip-alignment='bottom' data-avia-tooltip-class='av-tt-large-width av-tt-pos-right av-tt-align-bottom  av-mobile-fallback-active  main_color av-tt-hotspot' data-avia-tooltip='&lt;p&gt;&lt;strong&gt;Intake point&lt;\/strong&gt;&lt;\/p&gt;\n&lt;p&gt;The intake point is mounted on the tunnel wall in a height of approximately 1.5 m above the carriageway. It protects the intake system against foreign objects, spray and splash water.&lt;\/p&gt;\n'><div class='av-image-hotspot_inner'>1<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><div class='av-image-hotspot av-av_image_spot-7315d26f4772643003fe33e7fd7acab5 av-image-hotspot-2 ' data-avia-tooltip-position='right' data-avia-tooltip-alignment='bottom' data-avia-tooltip-class='av-tt-large-width av-tt-pos-right av-tt-align-bottom  av-mobile-fallback-active  main_color av-tt-hotspot' data-avia-tooltip='&lt;p&gt;&lt;strong&gt;Extractive monitoring system in enclosure&lt;\/strong&gt;&lt;\/p&gt;\n&lt;p&gt;The enclosure located in a niche or operating accomodates the main system components. It is accessible at all times without the need to close the tunnel for traffic.&lt;\/p&gt;\n'><div class='av-image-hotspot_inner'>2<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><div class='av-image-hotspot av-av_image_spot-425e8231038f0b23115d433ba9795336 av-image-hotspot-3 ' data-avia-tooltip-position='right' data-avia-tooltip-alignment='bottom' data-avia-tooltip-class='av-tt-large-width av-tt-pos-right av-tt-align-bottom  av-mobile-fallback-active  main_color av-tt-hotspot' data-avia-tooltip='&lt;p&gt;&lt;strong&gt;Connection to tunnel control system&lt;\/strong&gt;&lt;\/p&gt;\n&lt;p&gt;The connection to the tunnel control system can be established via analogue outputs and relay contacts or via field busses. Interfaces are implemented project specific.&lt;\/p&gt;\n'><div class='av-image-hotspot_inner'>3<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><div class='av-image-hotspot av-av_image_spot-08bd51cd8b5690818ce93d77000a6fd7 av-image-hotspot-4 ' data-avia-tooltip-position='top' data-avia-tooltip-alignment='left' data-avia-tooltip-class='av-tt-large-width av-tt-pos-above av-tt-align-left  av-mobile-fallback-active  main_color av-tt-hotspot' data-avia-tooltip='&lt;p&gt;&lt;strong&gt;Several intake points&lt;\/strong&gt;&lt;\/p&gt;\n&lt;p&gt;An extractive system can analyse air from up to 4 intake points.&lt;\/p&gt;\n'><div class='av-image-hotspot_inner'>4<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><div class='av-image-hotspot av-av_image_spot-4e4de4cdc707a7833e59b9569d626da0 av-image-hotspot-5 ' data-avia-tooltip-position='top' data-avia-tooltip-alignment='left' data-avia-tooltip-class='av-tt-default-width av-tt-pos-above av-tt-align-left  av-mobile-fallback-active  main_color av-tt-hotspot' data-avia-tooltip='&lt;p&gt;&lt;strong&gt;Intake tube&lt;\/strong&gt;&lt;\/p&gt;\n&lt;p&gt;The intake tube connects the intake point with the monitoring system accomodated in an enclosure outside the tunnels driving area.&lt;\/p&gt;\n'><div class='av-image-hotspot_inner'>5<\/div><div class='av-image-hotspot-pulse'><\/div><\/div><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-895 avia-img-lazy-loading-not-895 avia_image' src=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/COVISext_Grafik_notext_2015-08-12.png?fit=1030%2C210&ssl=1\" alt='' title='COVISext_Grafik_notext_2015-08-12'  height=\"210\" width=\"1030\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/COVISext_Grafik_notext_2015-08-12.png?w=3332&amp;ssl=1 3332w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/COVISext_Grafik_notext_2015-08-12.png?resize=300%2C61&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/COVISext_Grafik_notext_2015-08-12.png?resize=1030%2C210&amp;ssl=1 1030w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/COVISext_Grafik_notext_2015-08-12.png?resize=1500%2C305&amp;ssl=1 1500w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/COVISext_Grafik_notext_2015-08-12.png?resize=705%2C143&amp;ssl=1 705w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/COVISext_Grafik_notext_2015-08-12.png?resize=450%2C92&amp;ssl=1 450w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/COVISext_Grafik_notext_2015-08-12.png?resize=800%2C163&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/COVISext_Grafik_notext_2015-08-12.png?w=3000&amp;ssl=1 3000w\" sizes=\"(max-width: 1030px) 100vw, 1030px\" \/><\/div><\/div><\/div><div class='av-hotspot-fallback-tooltip av-image-hotspot-1 '><div class=\"av-hotspot-fallback-tooltip-count\">1<div class=\"avia-arrow\"><\/div><\/div><div class=\"av-hotspot-fallback-tooltip-inner clearfix\"><p>\n<strong>Intake point<\/strong><\/p>\n<p>The intake point is mounted on the tunnel wall in a height of approximately 1.5 m above the carriageway. It protects the intake system against foreign objects, spray and splash water.<\/p>\n<\/div><\/div><div class='av-hotspot-fallback-tooltip av-image-hotspot-2 '><div class=\"av-hotspot-fallback-tooltip-count\">2<div class=\"avia-arrow\"><\/div><\/div><div class=\"av-hotspot-fallback-tooltip-inner clearfix\"><p>\n<strong>Extractive monitoring system in enclosure<\/strong><\/p>\n<p>The enclosure located in a niche or operating accomodates the main system components. It is accessible at all times without the need to close the tunnel for traffic.<\/p>\n<\/div><\/div><div class='av-hotspot-fallback-tooltip av-image-hotspot-3 '><div class=\"av-hotspot-fallback-tooltip-count\">3<div class=\"avia-arrow\"><\/div><\/div><div class=\"av-hotspot-fallback-tooltip-inner clearfix\"><p>\n<strong>Connection to tunnel control system<\/strong><\/p>\n<p>The connection to the tunnel control system can be established via analogue outputs and relay contacts or via field busses. Interfaces are implemented project specific.<\/p>\n<\/div><\/div><div class='av-hotspot-fallback-tooltip av-image-hotspot-4 '><div class=\"av-hotspot-fallback-tooltip-count\">4<div class=\"avia-arrow\"><\/div><\/div><div class=\"av-hotspot-fallback-tooltip-inner clearfix\"><p>\n<strong>Several intake points<\/strong><\/p>\n<p>An extractive system can analyse air from up to 4 intake points.<\/p>\n<\/div><\/div><div class='av-hotspot-fallback-tooltip av-image-hotspot-5 '><div class=\"av-hotspot-fallback-tooltip-count\">5<div class=\"avia-arrow\"><\/div><\/div><div class=\"av-hotspot-fallback-tooltip-inner clearfix\"><p>\n<strong>Intake tube<\/strong><\/p>\n<p>The intake tube connects the intake point with the monitoring system accomodated in an enclosure outside the tunnels driving area.<\/p>\n<\/div><\/div><\/div><\/p><\/div>\n<div  class='flex_column av-av_one_fourth-b51168870d26eac9084c0e2dc495efe0 av_one_fourth  avia-builder-el-23  el_after_av_three_fourth  el_before_av_one_full  flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-579bf004452f854b27308eb27fee5a5a\">\n#top .av-special-heading.av-av_heading-579bf004452f854b27308eb27fee5a5a{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-579bf004452f854b27308eb27fee5a5a .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-579bf004452f854b27308eb27fee5a5a .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-579bf004452f854b27308eb27fee5a5a av-special-heading-h3  avia-builder-el-24  el_before_av_gallery  avia-builder-el-first '><h3 class='av-special-heading-tag '  itemprop=\"headline\"  >Gallery<\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_gallery-73b8f3d9575393f5855c071c402ab4fa\">\n#top .avia-gallery.av-av_gallery-73b8f3d9575393f5855c071c402ab4fa .avia-gallery-thumb a{\nwidth:50%;\n}\n<\/style>\n<div  class='avia-gallery av-av_gallery-73b8f3d9575393f5855c071c402ab4fa avia_animate_when_visible  avia-builder-el-25  el_after_av_heading  avia-builder-el-last  avia_lazyload avia-gallery-animate avia-gallery-1'  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><meta itemprop=\"contentURL\" content=\"https:\/\/www.tunnelsicherheit.at\/en\/product\/text-extractive-visibility-and-gas-monitoring-system\/\"><div class='avia-gallery-thumb'><a href=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt.png?fit=440%2C1030&amp;ssl=1\" data-srcset=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt.png?w=1410&amp;ssl=1 1410w, 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https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=450%2C694&amp;ssl=1 450w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=800%2C1234&amp;ssl=1 800w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=778%2C1200&amp;ssl=1 778w\" data-sizes=\"(max-width: 668px) 100vw, 668px\" data-rel='gallery-1' data-prev-img='https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=495%2C400&ssl=1' class='lightbox ' data-onclick='2' title='t\/EXT Schwenkrahmen offen'  itemprop=\"thumbnailUrl\"  ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-897 avia-img-lazy-loading-not-897\"   src=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=80%2C80&ssl=1\" width=\"80\" height=\"80\"  title='t\/EXT Schwenkrahmen offen' alt='' srcset=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=80%2C80&amp;ssl=1 80w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=36%2C36&amp;ssl=1 36w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=180%2C180&amp;ssl=1 180w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=120%2C120&amp;ssl=1 120w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=450%2C450&amp;ssl=1 450w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?w=1200&amp;ssl=1 1200w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?zoom=3&amp;resize=80%2C80&amp;ssl=1 240w\" sizes=\"(max-width: 80px) 100vw, 80px\" \/><div class='big-prev-fake'><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-897 avia-img-lazy-loading-897\"  width=\"495\" height=\"400\" src=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=495%2C400&ssl=1\" title='t\/EXT Schwenkrahmen offen' alt='' srcset=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=495%2C400&amp;ssl=1 495w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?resize=845%2C684&amp;ssl=1 845w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/Schrank_alt_2_small.png?zoom=2&amp;resize=495%2C400&amp;ssl=1 990w\" sizes=\"auto, (max-width: 495px) 100vw, 495px\" \/><\/div><\/a><\/div><\/div><\/p><\/div>\n<div  class='flex_column av-av_one_full-2a9015ff38129c418a3f2eafba3e9512 av_one_full  avia-builder-el-26  el_after_av_one_fourth  avia-builder-el-last  first flex_column_div  column-top-margin'     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-av_heading-230d0ba564d821e7122d6dcb52198bbc\">\n#top .av-special-heading.av-av_heading-230d0ba564d821e7122d6dcb52198bbc{\npadding-bottom:10px;\n}\nbody .av-special-heading.av-av_heading-230d0ba564d821e7122d6dcb52198bbc .av-special-heading-tag .heading-char{\nfont-size:25px;\n}\n.av-special-heading.av-av_heading-230d0ba564d821e7122d6dcb52198bbc .av-subheading{\nfont-size:15px;\n}\n<\/style>\n<div  class='av-special-heading av-av_heading-230d0ba564d821e7122d6dcb52198bbc av-special-heading-h3  avia-builder-el-27  el_before_av_portfolio  avia-builder-el-no-sibling '><h3 class='av-special-heading-tag '  itemprop=\"headline\"  >Related products<\/h3><div class=\"special-heading-border\"><div class=\"special-heading-inner-border\"><\/div><\/div><\/div><br \/>\n<div  id=\"av-sc-portfolio-1\"  class=' grid-sort-container isotope   no_margin-container with-title-container grid-total-even grid-col-4 grid-links-' data-portfolio-id='1'><div data-ajax-id='703' class=' grid-entry flex_column isotope-item all_sort no_margin post-entry post-entry-703 grid-entry-overview grid-loop-1 grid-parity-odd  air_sort  av_one_fourth first default_av_fullwidth '><article class='main_color inner-entry'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><a href=\"https:\/\/www.tunnelsicherheit.at\/en\/product\/text-extractive-visibility-and-gas-monitoring-system\/\" title='t\/EXT Extractive visibility and gas monitoring system'  data-rel='grid-1' class='grid-image avia-hover-fx'> <img decoding=\"async\" fetchpriority=\"high\" width=\"260\" height=\"185\" src=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/t_COVISext_Portfolio.jpg?resize=260%2C185&amp;ssl=1\" class=\"wp-image-849 avia-img-lazy-loading-not-849 attachment-portfolio_small size-portfolio_small wp-post-image\" alt=\"\" srcset=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/t_COVISext_Portfolio.jpg?w=450&amp;ssl=1 450w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/t_COVISext_Portfolio.jpg?resize=300%2C213&amp;ssl=1 300w, https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/t_COVISext_Portfolio.jpg?resize=260%2C185&amp;ssl=1 260w\" sizes=\"(max-width: 260px) 100vw, 260px\" data-wp-pid=\"849\" \/><\/a><div class='grid-content'><div class='avia-arrow'><\/div><header class=\"entry-content-header\" aria-label=\"Portfolio: t\/EXT Extractive visibility and gas monitoring system\"><h3 class='grid-entry-title entry-title '  itemprop=\"headline\" ><a href='https:\/\/www.tunnelsicherheit.at\/en\/product\/text-extractive-visibility-and-gas-monitoring-system\/' title='t\/EXT Extractive visibility and gas monitoring system'>t\/EXT Extractive visibility and gas monitoring system<\/a><\/h3><\/header><\/div><footer class=\"entry-footer\"><\/footer><\/article><\/div><div data-ajax-id='690' class=' grid-entry flex_column isotope-item all_sort no_margin post-entry post-entry-690 grid-entry-overview grid-loop-2 grid-parity-even  air_sort  av_one_fourth  default_av_fullwidth '><article class='main_color inner-entry'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><a href=\"https:\/\/www.tunnelsicherheit.at\/en\/product\/tfl-us-air-flow-measuring-system-ultrasonic\/\" title='t\/FL-USX Air flow monitoring system &#8211; Ultrasonic cross-section'  data-rel='grid-1' class='grid-image avia-hover-fx'> <img decoding=\"async\" fetchpriority=\"high\" width=\"260\" height=\"185\" src=\"https:\/\/i0.wp.com\/www.tunnelsicherheit.at\/wp-content\/uploads\/2015\/07\/tASUS_Portfolio1.jpg?resize=260%2C185&amp;ssl=1\" class=\"wp-image-851 avia-img-lazy-loading-not-851 attachment-portfolio_small size-portfolio_small wp-post-image\" alt=\"\" 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class=\"entry-footer\"><\/footer><\/article><\/div><\/div><\/p><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":849,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"tags":[125,146,58,131,135,136,137,154,60,157,160,172,173,45],"portfolio_entries":[119],"class_list":["post-703","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","tag-astra-13001-en","tag-attenuation","tag-carbon-monoxide","tag-co-en","tag-extinction","tag-extinction-coefficient","tag-extractive","tag-opacity","tag-particle","tag-rabt-2006-en","tag-rvs-09-02-22-en","tag-transmission-en","tag-turbidity","tag-visibility","portfolio_entries-air"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>t\/EXT Extractive visibility and gas monitoring system - JES tunnelsafety.at<\/title>\n<meta name=\"description\" content=\"t\/EXT 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