{"id":38073,"date":"2024-02-08T06:19:45","date_gmt":"2024-02-08T06:19:45","guid":{"rendered":"https:\/\/www.alicat.com\/?post_type=article&#038;p=38073"},"modified":"2026-02-03T20:58:54","modified_gmt":"2026-02-03T20:58:54","slug":"tutorial-zu-gas-select-und-composer","status":"publish","type":"support","link":"https:\/\/www.alicat.com\/de\/support\/gas-select-and-composer-tutorial\/","title":{"rendered":"Gas Select\u2122 und Composer\u2122 Anleitung"},"content":{"rendered":"\n[et_pb_section fb_built=&#8221;1&#8243; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_row _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_column type=&#8221;4_4&#8243; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][et_pb_heading title=&#8221;Gas Select\u2122 and Composer\u2122 tutorial&#8221; _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;][\/et_pb_heading][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<p>Alicat mass flow devices come preloaded with <a href=\"https:\/\/www.alicat.com\/documentation\/gas-select-gas-list\/\">98-130 gases<\/a> that are selectable using Gas Select\u2122. <a href=\"https:\/\/www.alicat.com\/support\/gas-select-composer-gas-mix-calibration\/\">Composer\u2122 firmware<\/a> additionally allows the user to create and store up to 20 custom gas mixes.<\/p>\n<p>See below for instructions how to use Gas Select\u2122 and Composer\u2122.<\/p>\n<h2>Video tutorial<\/h2>\n<p><iframe title=\"Alicat Mass Flow Instruments: Tutorial - Gas Select Composer\u2122\" width=\"1080\" height=\"608\" src=\"https:\/\/www.youtube.com\/embed\/k46eBdbCZC0?feature=oembed&rel=0\"  allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/p>[\/et_pb_text][et_pb_accordion _builder_version=&#8221;4.27.5&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;][et_pb_accordion_item title=&#8221;Video transcript&#8221; open=&#8221;on&#8221; _builder_version=&#8221;4.27.5&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; sticky_enabled=&#8221;0&#8243;]<p>\u201cHello, my name is Michael Whiteside. I am an applications engineer here at Alicat Scientific. In this video, I am going to show you how to change the gas select, as well as walk you through how to use the Composer\u2122 functionality on an Alicat device. Now let\u2019s get started.<\/p>\n<p>In order to change the gas select on your Alicat device, we will hit \u201cMENU\u201d (bottom right button), &#8220;BASIC CONFIG&#8221; (bottom left button), and &#8220;GAS&#8221; up in the top left. We have a long list of gases you can select. We will go to our standard list, and we will change this to neon (top left button for \u2018UP\u2019, top middle button for \u2018DOWN\u2019), hit &#8220;SET&#8221; (bottom right button). We can see that it is now set for neon.<\/p>\n<p>If you have your own user mix you would like to establish on the device, we will go back in here and hit Composer\u2122. Now this composer functionality, you can add a specific mixture that you\u2019re flowing, and the device will do all the necessary calculations.<\/p>\n<p>We will add a new mix (bottom right button for &#8220;SET&#8221;). Just name it \u2018A\u2019 for now, and we will add our first gas. Say we are looking to replicate atmospheric air. First, we will add our nitrogen. Scroll down until we find our nitrogen (top left for \u2018UP\u2019, top middle for \u2018DOWN\u2019), there we go, and set that at 78% (top three buttons for \u2018UP\u2019, \u2018DOWN\u2019, and \u2018SELECT DIGIT\u2019, bottom right button for \u2018SET\u2019).<\/p>\n<p>Next, we will add our oxygen, add &#8220;GAS&#8221; (top middle button), standard list, scroll down (top middle button) until we find oxygen, there we go (bottom right button for \u2018SELECT\u2019). We will set that to 21% (top three buttons for \u2018UP\u2019, \u2018DOWN\u2019, and \u2018SELECT DIGIT\u2019, bottom right button for \u2018SET\u2019).<\/p>\n<p>Last but not least, we have our 1% of argon. In our standard list, the second one down (bottom right button for \u2018SELECT\u2019). The device already auto-fills 1%, we will hit \u2018SET\u2019 (bottom right button). Now we have our own user mix, and we will save that (bottom right button).<\/p>\n<p>That is how you properly select a gas, or create your own user mixes on an Alicat device.\u201d<\/p>[\/et_pb_accordion_item][\/et_pb_accordion][et_pb_text _builder_version=&#8221;4.23.1&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221;]<h2>Step-by-step instructions<\/h2>\n<h3>Gas Select\u2122 (front panel)<\/h3>\n<ol>\n<li>Press the bottom right button for \u201cMENU\u201d selection.<\/li>\n<li>Press the bottom left button for \u201cBASIC CONFIG\u201d selection.<\/li>\n<li>Press the top left button for \u201cGAS\u201d selection.<\/li>\n<li>Use the up and down buttons to select your desired gas.<\/li>\n<\/ol>\n<h3>Composer\u2122 (front panel)<\/h3>\n<ol>\n<li>Press the bottom right button for \u201cMENU\u201d selection.<\/li>\n<li>Press the bottom left button for \u201cBASIC CONFIG\u201d selection.<\/li>\n<li>Press the top left button for \u201cGAS\u201d selection.<\/li>\n<li>Use the up and down buttons to select \u201cCOMPOSER User Mixes\u201d.<\/li>\n<li>Press the bottom left button for \u201cSET\u201d selection.<\/li>\n<li>Use the up, down, and select letter buttons to name your user mix.<\/li>\n<li>Press the bottom left button for \u201cSET\u201d selection.<\/li>\n<li>Press the top middle button for \u201cADD GAS\u201d selection.<\/li>\n<li>Use the up and down buttons to select your desired gas.<\/li>\n<li>Press the bottom right button for \u201cSELECT\u201d selection.<\/li>\n<li>Use the up, down, and select digit buttons to set your desired gas percentage.<\/li>\n<li>Press the bottom right button for \u201cSET\u201d selection.<\/li>\n<li>Repeat for the remaining gases in your mixture.<\/li>\n<\/ol>\n<h3>Composer\u2122 (serial)<\/h3>\n<p>Use your RS-232 or RS-485 serial connection to create a Composer\u2122 gas mix with a single command:<\/p>\n<ul>\n<li><span style=\"color: #000000;\">[unit ID]<strong>gm<\/strong>\u00a0[mix name] [gas number, or 0 for next available number] [1st gas composition %] [1st gas ID in Gas Select]\u00a0[2nd gas composition %] [2nd gas ID in Gas Select]<\/span><\/li>\n<\/ul>\n<p>For example, to generate a Composer\u2122 user mix called \u201cLaser2\u201d with a composition of 71.35% He + 19.25% N<sub>2<\/sub> + 9.4% CO<sub>2 <\/sub>on an Alicat with a unit ID of A, simply type the following into your serial interface:<\/p>\n<ul>\n<li><span style=\"color: #000000;\"><strong>agm Laser2 0 71.35 7 19.25 8 9.4 4<\/strong>\u00a0&lt;enter\/carriage return&gt;<\/span><\/li>\n<\/ul>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]\n","protected":false},"featured_media":46458,"parent":0,"template":"","meta":{"_acf_changed":false,"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"1920","content-type":"","_searchwp_excluded":""},"categories":[],"class_list":["post-38073","support","type-support","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Gas Select\u2122 and Composer\u2122 Tutorial - Alicat Scientific<\/title>\n<meta name=\"description\" content=\"Alicat mass flow devices come preloaded with 98-130 gases that are selectable using Gas Select\u2122. 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