{"id":1382,"date":"2019-08-22T18:33:29","date_gmt":"2019-08-23T01:33:29","guid":{"rendered":""},"modified":"2025-04-30T07:53:15","modified_gmt":"2025-04-30T14:53:15","slug":"1382","status":"publish","type":"post","link":"https:\/\/www.vernier.com\/til\/1382","title":{"rendered":"Salinity Sensor Troubleshooting and FAQs"},"content":{"rendered":"<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<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\"><a href=\"\/product\/salinity-sensor\/\">Salinity Sensor<\/a> (<nobr>SAL-BTA<\/nobr>)<\/h3>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p><a href=\"\/manuals\/SAL-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<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.vernier.com\/wp-content\/uploads\/2019\/11\/product.sal-bta._hero.001-scaled.jpg\" alt=\"\"\/><\/figure>\n<\/div>\n<\/div>\n<h3 class=\"wp-block-heading\">Troubleshooting<\/h3>\n<ul class=\"wp-block-list\">\n<li><strong>Primary Test:<\/strong> Plug in the sensor and start up the data-collection program. Place the sensor in distilled water. The reading should be at or near 0 ppt. Place the sensor in a 35 ppt salinity standard solution. The reading should be at or near 35 ppt. Note: This standard solution can be purchased from Vernier or made by adding 33.03 g reagent grade NaCl to enough distilled or deionized water to make 1.00 liter of solution.<\/li>\n<li><strong>Secondary Test:<\/strong> Plug in the sensor and start up the data-collection program. Place the sensor in distilled water and then move the sensor to a container of tap water. The readings should change from 0 ppt to a salinity value that is appropriate for your region of the country.<\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Additional Troubleshooting<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/til\/1399\/\">Can I use Vernier water quality sensors in salt water or in a salt water aquarium?<\/a><\/li>\n<li><a href=\"\/til\/11516\/\">What is the difference between salinity and conductivity?<\/a><\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n<ul class=\"wp-block-list\">\n<li>Range of Salinity Sensor: 0 to 50 ppt (0 to 50,000 ppm)<\/li>\n<li>Accuracy<br \/>\u26ac using factory calibration: \u00b13% of full-scale reading<br \/>\u26ac using custom calibration: \u00b11% of full-scale reading<\/li>\n<li>Response time: 90% of full-scale reading in 10 s.<\/li>\n<li>Temperature compensation: automatic from 5 to 35 \u00b0C<\/li>\n<li>Temperature range (can be placed in): 0 to 80 \u00b0C<\/li>\n<li>Cell constant: 10 cm<sup>-1<\/sup><\/li>\n<li>Description: dip type, epoxy body, parallel platinum electrodes<\/li>\n<li>Dimensions: 12 mm OD and 150 mm length<\/li>\n<li>Typical calibration coefficients: slope 16.3 ppt\/V; intercept 0 ppt<\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Calibration<\/h3>\n<p>Calibrate? For many experiments, calibrating the Salinity Sensor is not required. We store a calibration equation on each sensor before shipping it, which is used as a default by our software.<\/p>\n<p>For the most accurate measurements with this sensor, we recommend calibration. It is a simple process that takes only a few minutes. For instructions for Salinity Sensor calibration, see <a href=\"\/til\/4011\/\">How do I calibrate my sensor?<\/a><\/p>\n<h4 class=\"wp-block-heading\"><strong>CALIBRATION SOLUTION<\/strong><\/h4>\n<p>If you choose to calibrate the Salinity Sensor, you will want an accurate standard solution. Vernier sells a 35 ppt <a href=\"\/product\/salinity-standard\/\">Salinity Standard<\/a> (<nobr>SAL-ST<\/nobr>). If you prefer to prepare your own 35 ppt standard solution using solid NaCl, use a container with accurate volume markings (e.g., volumetric flask). Add 33.03 g reagent grade NaCl to enough distilled water to make one liter of solution.<\/p>\n<p class=\"has-very-light-gray-background-color has-background\"><strong>Note: <\/strong>The Practical Salinity Scale 1978 was developed relative to a KCl solution. Standard Methods for the Examination of Water and Wastewater states that \u201cA seawater with a conductivity at 15\u00b0C equal to that of a KCl solution containing a mass of 32.4356 g in a mass of 1 kg of solution is defined as having a practical salinity of 35.\u201d<\/p>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Related Products<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/product\/salinity-standard\/\">Salinity Standard<\/a> (<nobr>SAL-ST<\/nobr>)<\/li>\n<li><a href=\"\/product\/go-direct-salinity-sensor\/\">Go Direct<sup>&reg;<\/sup> Salinity Sensor<\/a> (<nobr>GDX-SAL<\/nobr>)<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Specifications and User Guide Troubleshooting Additional Troubleshooting Specifications Calibration Calibrate? For many experiments, calibrating the Salinity Sensor is not required. We store a calibration equation&#8230;<\/p>\n","protected":false},"author":1073,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[720,1744,1745,1746,1747],"class_list":["post-1382","post","type-post","status-publish","format-standard","hentry","tag-maintil","tag-sal-bta","tag-sal-din","tag-salinitymain","tag-salmain"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/1382","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\/1073"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=1382"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/1382\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=1382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=1382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=1382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}