{"id":11055,"date":"2025-07-15T11:12:22","date_gmt":"2025-07-15T11:12:22","guid":{"rendered":"https:\/\/daivings.lv\/?p=11055"},"modified":"2025-07-15T11:14:52","modified_gmt":"2025-07-15T11:14:52","slug":"rebrizera-jj-ccr-darbiba-ieskats-no-tehniskas-nirsanas-instruktora-skatpunkta","status":"publish","type":"post","link":"https:\/\/daivings.lv\/en\/the-operation-of-the-rebreather-jj-ccr-an-insight-from-the-perspective-of-a-technical-diving-instructor\/","title":{"rendered":"The operation of the JJ-CCR rebreather, an insight from the perspective of a technical diving instructor"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Hello, fellow divers and diving enthusiasts! Let&#039;s breathe underwater without bubbles! Rebreather <strong><a href=\"https:\/\/daivings.lv\/parskats-par-drosakajiem-ccr-rebreather-pedejos-5-gados-popularakaie-rebrizeri-tirgu\/\">JJ-CCR<\/a><\/strong> action, insight from a technical diving instructor&#039;s perspective. I&#039;m a technical diving instructor, and today we&#039;re going to delve into <strong>JJ-CCR rebreather<\/strong> in detail, looking at some important aspects that must be taken into account when planning and conducting dives with this equipment. It is essential to understand the nuances of each piece of equipment to ensure safety and efficiency underwater.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The Rebriser is intended only for experienced, certified divers who have been trained to use the breathing system of a particular model, or for those divers who are undergoing training and are under the direct supervision of a qualified instructor.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Even if you have experience in using underwater equipment, you should take the time to acquire knowledge in special courses. The reefer is intended for use by certified scuba divers who have completed a rebeer course or who are trained and supervised by a qualified instructor.&nbsp;<\/p>\n\n\n\n<p class=\"has-pale-ocean-gradient-background has-background wp-block-paragraph\">Apply and&nbsp;<strong><em><a href=\"https:\/\/daivings.lv\/shop\/products\/izmegini-eccr-ce-rebreather-kopa-ar-instruktoru\/\">try eCCR CE Rebreather<\/a><\/em><\/strong>&nbsp;In Latvia, Lithuania or Estonia with an instructor (Full introduction to rebreather diving).<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/daivings.lv\/en\/the-operation-of-the-rebreather-jj-ccr-an-insight-from-the-perspective-of-a-technical-diving-instructor\/#Vertikala_pozicija_ar_galvu_uz_leju\" >Vertical position with head down<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/daivings.lv\/en\/the-operation-of-the-rebreather-jj-ccr-an-insight-from-the-perspective-of-a-technical-diving-instructor\/#Temperaturas_apstakli\" >Temperature conditions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/daivings.lv\/en\/the-operation-of-the-rebreather-jj-ccr-an-insight-from-the-perspective-of-a-technical-diving-instructor\/#Slodzes_limeni_un_skabekla_drosiba\" >Stress levels and oxygen safety<\/a><\/li><\/ul><\/nav><\/div>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Vertikala_pozicija_ar_galvu_uz_leju\"><\/span>Vertical position with head down<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">One of the points that often raises questions is the compliance of the JJ-CCR with EN 14143 Section 5.6.1.4 (Hydrostatic imbalance test) for a -90 degree tilt, or vertical upside down position. It is important to understand that <strong>JJ-CCR does not meet the requirements of this test<\/strong> in such a position.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Why is this important? A vertical, head-down position during diving is extremely unusual and is usually only used when absolutely necessary. However, if a diver is forced into this position, there is a possibility that <strong>The ADV (Automatic Diluent Delivery Valve) may activate unexpectedly or start to flow freely<\/strong>This may cause unwanted loss of diluent and affect the composition of the loop.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To prevent this, if circumstances force you to take such a position, you need to close <strong>in-line shut-off valve on ADV<\/strong>This way you have full control over the addition of diluent to the system using <strong>manual diluent addition valve<\/strong>This will ensure optimal loop performance and allow you to maintain control even in non-standard situations. The main thing is to be prepared and know what to do.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Temperaturas_apstakli\"><\/span>Temperature conditions<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The JJ-CCR is designed for diving with <strong>low to moderate load<\/strong>This means it is ideal for both recreational and technical diving activities. While it is capable of providing a high level of protection for the diver, this is not its primary purpose.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">What happens if we work with a higher load? It should be noted that <strong>oxygen consumption and CO2 production increase<\/strong>, which in turn <strong>reduces the effectiveness time of soda lime<\/strong>In other words, the operating time of your rebreather will be shortened.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/daivings.lv\/wp-content\/uploads\/Rebrizers-SF2-Backmount-ECCR-darbiba.jpg\" alt=\"Rebrizer SF2 Backmount ECCR in operation\" class=\"wp-image-5974\" srcset=\"https:\/\/daivings.lv\/wp-content\/uploads\/Rebrizers-SF2-Backmount-ECCR-darbiba.jpg?v=1706275447 800w, https:\/\/daivings.lv\/wp-content\/uploads\/Rebrizers-SF2-Backmount-ECCR-darbiba-300x200.jpg?v=1706275447 300w, https:\/\/daivings.lv\/wp-content\/uploads\/Rebrizers-SF2-Backmount-ECCR-darbiba-768x513.jpg?v=1706275447 768w, https:\/\/daivings.lv\/wp-content\/uploads\/Rebrizers-SF2-Backmount-ECCR-darbiba-18x12.jpg?v=1706275447 18w, https:\/\/daivings.lv\/wp-content\/uploads\/Rebrizers-SF2-Backmount-ECCR-darbiba-230x154.jpg?v=1706275447 230w, https:\/\/daivings.lv\/wp-content\/uploads\/Rebrizers-SF2-Backmount-ECCR-darbiba-350x234.jpg?v=1706275447 350w, https:\/\/daivings.lv\/wp-content\/uploads\/Rebrizers-SF2-Backmount-ECCR-darbiba-480x320.jpg?v=1706275447 480w, https:\/\/daivings.lv\/wp-content\/uploads\/Rebrizers-SF2-Backmount-ECCR-darbiba-272x182.jpg?v=1706275447 272w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\">Rebrizer SF2 Backmount ECCR in operation<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">In addition, high load can <strong>affect decompression<\/strong>. Everyone&#039;s body is different and reacts differently, so it&#039;s impossible to give exact numbers. However, I always recommend <strong>add an extra margin of safety<\/strong> for a decompression plan if you plan more intensive dives with the JJ-CCR. Remember, it is better to be overcautious than undercautious.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Slodzes_limeni_un_skabekla_drosiba\"><\/span>Stress levels and oxygen safety<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">JJ-CCR uses <strong>high-pressure oxygen<\/strong> as one of the gas mixtures. This is extremely important because the parts associated with it are <strong>cleaned and prepared especially for high-pressure oxygen use<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Why is this so important? <strong>Any incompatibility or mishandling of oxygen can cause an oxygen fire, which can cause serious injury or even death.<\/strong> Therefore, special care must be taken, especially <strong>filling an oxygen cylinder<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Regular and thorough <strong>maintenance and oxygen-compatible cleanliness<\/strong> is mandatory for all components exposed to high pressure oxygen. Any service or repair work involving these components, <strong>must be carried out by the manufacturer or a service center approved by JJ-CCR ApS<\/strong>. Do not attempt to do this work yourself unless you have the proper certification and equipment. It is not a risk worth taking.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">Diving with a rebreather, especially with a modern device like the JJ-CCR, opens up new possibilities and allows us to explore the underwater world with unparalleled efficiency. However, with great opportunities comes great responsibility. Get to know your equipment, understand its limitations, and always follow the manufacturer&#039;s instructions and safety protocols. Safe diving is good diving!<\/p>\n\n\n\n<p class=\"has-very-light-gray-to-cyan-bluish-gray-gradient-background has-background wp-block-paragraph\">Do you have any more questions about JJ-CCR or technical diving? I&#039;d be happy to answer! Sign up and&nbsp;<strong><em><a href=\"https:\/\/daivings.lv\/shop\/products\/izmegini-eccr-ce-rebreather-kopa-ar-instruktoru\/\">try eCCR CE Rebreather<\/a><\/em><\/strong>&nbsp;In Latvia, Lithuania or Estonia with an instructor (Full introduction to rebreather diving).<\/p>","protected":false},"excerpt":{"rendered":"<p>Hello fellow divers and diving enthusiasts! Let&#039;s breathe underwater without bubbles! The JJ-CCR rebreather in action, an insight from the perspective of a technical diving instructor. I am a technical diving instructor, and today we will delve into the ins and outs of the JJ-CCR rebreather, looking at some important aspects that you should definitely consider when planning [\u2026]<\/p>","protected":false},"author":1,"featured_media":10475,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1600],"tags":[],"class_list":["post-11055","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tehniska-nirsana"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Rebr\u012bzera JJ-CCR darb\u012bba, ieskats no tehnisk\u0101s nir\u0161anas instruktora skatpunkta - Daivings.lv<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/daivings.lv\/en\/the-operation-of-the-rebreather-jj-ccr-an-insight-from-the-perspective-of-a-technical-diving-instructor\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rebr\u012bzera JJ-CCR darb\u012bba, ieskats no tehnisk\u0101s nir\u0161anas instruktora skatpunkta - Daivings.lv\" \/>\n<meta property=\"og:description\" content=\"Sveiki, kol\u0113\u0123i nir\u0113ji un nir\u0161anas entuziasti! 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Esmu tehnisk\u0101s nir\u0161anas instruktors, un \u0161odien m\u0113s iedzi\u013cin\u0101simies JJ-CCR rebreathera smalkumos, apl\u016bkojot da\u017eus svar\u012bgus aspektus, kas noteikti j\u0101\u0146em v\u0113r\u0101, pl\u0101nojot [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/daivings.lv\/en\/the-operation-of-the-rebreather-jj-ccr-an-insight-from-the-perspective-of-a-technical-diving-instructor\/\" \/>\n<meta property=\"og:site_name\" content=\"Daivings.lv\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/facebook.com\/daivings\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-15T11:12:22+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-15T11:14:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/daivings.lv\/wp-content\/uploads\/2025\/02\/JJ3_500x.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"500\" \/>\n\t<meta property=\"og:image:height\" content=\"334\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Valters\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@daivings\" \/>\n<meta name=\"twitter:site\" content=\"@daivings\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Valters\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/daivings.lv\\\/rebrizera-jj-ccr-darbiba-ieskats-no-tehniskas-nirsanas-instruktora-skatpunkta\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/daivings.lv\\\/rebrizera-jj-ccr-darbiba-ieskats-no-tehniskas-nirsanas-instruktora-skatpunkta\\\/\"},\"author\":{\"name\":\"Valters\",\"@id\":\"https:\\\/\\\/daivings.lv\\\/#\\\/schema\\\/person\\\/2d38bbddcd6444621ca8bcd097565438\"},\"headline\":\"Rebr\u012bzera JJ-CCR darb\u012bba, ieskats no tehnisk\u0101s nir\u0161anas instruktora skatpunkta\",\"datePublished\":\"2025-07-15T11:12:22+00:00\",\"dateModified\":\"2025-07-15T11:14:52+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/daivings.lv\\\/rebrizera-jj-ccr-darbiba-ieskats-no-tehniskas-nirsanas-instruktora-skatpunkta\\\/\"},\"wordCount\":946,\"publisher\":{\"@id\":\"https:\\\/\\\/daivings.lv\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/daivings.lv\\\/rebrizera-jj-ccr-darbiba-ieskats-no-tehniskas-nirsanas-instruktora-skatpunkta\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/daivings.lv\\\/wp-content\\\/uploads\\\/2025\\\/02\\\/JJ3_500x.webp\",\"articleSection\":[\"Tehnisk\u0101 nir\u0161ana\"],\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/daivings.lv\\\/rebrizera-jj-ccr-darbiba-ieskats-no-tehniskas-nirsanas-instruktora-skatpunkta\\\/\",\"url\":\"https:\\\/\\\/daivings.lv\\\/rebrizera-jj-ccr-darbiba-ieskats-no-tehniskas-nirsanas-instruktora-skatpunkta\\\/\",\"name\":\"Rebr\u012bzera JJ-CCR darb\u012bba, ieskats no tehnisk\u0101s nir\u0161anas instruktora skatpunkta - 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Uzs\u0101cis nir\u0113ja gaitas 2005.gada 20.oktobr\u012b, izejot apm\u0101c\u012bbu Daivinga Instruktoru Profesion\u0101l\u0101 Asoci\u0101cij\u0101, DIPA (Ang. PADI \u2013 Professional Association of Diving Instructors ), tren\u0113jies nir\u0161anas profesion\u0101l\u0101s izaugsmes apm\u0101c\u012bb\u0101 Adrijas un Jonijas j\u016br\u0101s, Zieme\u013cu Atlantijas oke\u0101na sal\u0101s, Sarkan\u0101 j\u016br\u0101, Norv\u0113\u0123u j\u016br\u0101 un Vidusj\u016br\u0101. Piedal\u012bjies zem\u016bdens arheolo\u0123isk\u0101 projekt\u0101 Latvij\u0101. 2006.gada 24.j\u016blij\u0101 izveidojis nir\u0161anas klubu \u201cDaivings.lv\u201d. Paveicis vair\u0101k k\u0101 5000 ienir\u0161anas ar zem\u016bdens elpojamo apar\u0101tu. 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Began diving on October 20, 2005, undergoing training at the Professional Association of Diving Instructors, DIPA (Eng. PADI - Professional Association of Diving Instructors), trained in professional development training for diving in the Adriatic and Ionian seas, the islands of the North Atlantic Ocean, the Red Sea, the Norwegian Sea and in the Mediterranean. Participated in an underwater archaeological project in Latvia. On July 24, 2006, he founded the diving club &quot;Daivings.lv&quot;. Made more than 5000 scuba dives. Has participated in many diving expeditions, is interested in ecology and how climate change affects the underwater world.","url":"https:\/\/daivings.lv\/en\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/daivings.lv\/en\/wp-json\/wp\/v2\/posts\/11055","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/daivings.lv\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/daivings.lv\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/daivings.lv\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/daivings.lv\/en\/wp-json\/wp\/v2\/comments?post=11055"}],"version-history":[{"count":0,"href":"https:\/\/daivings.lv\/en\/wp-json\/wp\/v2\/posts\/11055\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/daivings.lv\/en\/wp-json\/wp\/v2\/media\/10475"}],"wp:attachment":[{"href":"https:\/\/daivings.lv\/en\/wp-json\/wp\/v2\/media?parent=11055"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/daivings.lv\/en\/wp-json\/wp\/v2\/categories?post=11055"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/daivings.lv\/en\/wp-json\/wp\/v2\/tags?post=11055"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}