{"id":2583,"date":"2013-02-22T22:48:37","date_gmt":"2013-02-23T06:48:37","guid":{"rendered":""},"modified":"2025-04-23T08:18:10","modified_gmt":"2025-04-23T15:18:10","slug":"2583","status":"publish","type":"post","link":"https:\/\/www.vernier.com\/til\/2583","title":{"rendered":"What is the calibration information for the Gas Pressure Sensor?"},"content":{"rendered":"<p>The calibration information is dependent on the type of transducer used in the <a href=\"\/product\/gas-pressure-sensor\/\">Gas Pressure Sensor<\/a> (<nobr>GPS-BTA<\/nobr>), which changed with an update to the sensor starting in October 2011. The new calibration has different slope and intercept values.<\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Gas Pressure Sensor &#8211; current model<\/h3>\n<p>The current model started shipping in October, 2011. The label has a registered trademark (\u00ae) on the company logo.<\/p>\n<p><strong>Pressure Transducer <\/strong><br \/>Honeywell SSCMRNN030PAAA5<\/p>\n<p><strong>Sensor Calibration Coefficients<\/strong><br \/>\u26ac kPa: slope = 51.71, intercept = -25.86<br \/>\u26ac atm: slope = 0.5103, intercept = -0.247426<br \/>\u26ac mm Hg: slope = 387.8, intercept = -188.044<\/p>\n<p><a href=\"\/manuals\/GPS-BTA\">Specifications and User Guide<\/a><\/p>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1349\" height=\"1349\" src=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2013\/02\/product.gps-bta.hero._001-1.png\" alt=\"\" class=\"wp-image-24506\" style=\"width:243px;height:auto\" srcset=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2013\/02\/product.gps-bta.hero._001-1.png 1349w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2013\/02\/product.gps-bta.hero._001-1-600x600.png 600w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2013\/02\/product.gps-bta.hero._001-1-1024x1024.png 1024w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2013\/02\/product.gps-bta.hero._001-1-300x300.png 300w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2013\/02\/product.gps-bta.hero._001-1-768x768.png 768w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2013\/02\/product.gps-bta.hero._001-1-90x90.png 90w\" sizes=\"auto, (max-width: 1349px) 100vw, 1349px\" \/><\/figure>\n<\/div>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"466\" height=\"348\" src=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2013\/02\/image.jpeg\" alt=\"\" class=\"wp-image-24503\" style=\"width:233px;height:auto\" srcset=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2013\/02\/image.jpeg 466w, https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2013\/02\/image-381x285.jpeg 381w\" sizes=\"auto, (max-width: 466px) 100vw, 466px\" \/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Gas Pressure Sensor (pre-October 2011)<\/h3>\n<p>The older models shipped prior to October, 2011. There is no registered trademark (\u00ae) on the label.<\/p>\n<p><strong>Pressure Transducer:<\/strong> SenSym SDX30A4<\/p>\n<p><strong>Sensor Calibration Coefficients<\/strong><br \/>\u26ac kPa: slope = 46.48, intercept =0<br \/>\u26ac atm: slope = 0.4587, intercept = 0<br \/>\u26ac mm Hg: slope = 348.63, intercept = 0<\/p>\n<p><a href=\"https:\/\/www.vernier.com\/wp-content\/uploads\/2025\/04\/GPS-BTA-2.17.10.pdf\">Specifications and User Guide<\/a><\/p>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"216\" height=\"197\" src=\"https:\/\/www.vernier.com\/til\/wp-content\/uploads\/sites\/2\/2013\/02\/Screenshot-2025-04-23-080035.png\" alt=\"\" class=\"wp-image-24507\"\/><\/figure>\n<\/div>\n<\/div>\n<\/div>\n<p><strong>Note: <\/strong>Some older software will incorrectly apply the slope-intercept calibration of the older model Gas Pressure Sensor. In most cases, our software has been updated to fix the problem. However, we have not updated versions of legacy software such as ChemBio for the original CBL.<\/p>","protected":false},"excerpt":{"rendered":"<p>The calibration information is dependent on the type of transducer used in the , which changed with an update to the sensor starting in October&#8230;<\/p>\n","protected":false},"author":11015,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[1645,82,4298,4299],"class_list":["post-2583","post","type-post","status-publish","format-standard","hentry","tag-gas-pressure-sensor","tag-gps-bta","tag-linear-calibration","tag-slope-intercept"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/2583","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/users\/11015"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=2583"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/2583\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=2583"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=2583"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=2583"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}