{"id":3518,"date":"2014-01-16T14:00:33","date_gmt":"2014-01-16T20:00:33","guid":{"rendered":"https:\/\/www.coleparmer.com\/blog\/?p=3518"},"modified":"2019-09-24T11:40:20","modified_gmt":"2019-09-24T17:40:20","slug":"conductivity-and-conductivity-meters","status":"publish","type":"post","link":"https:\/\/www.coleparmer.com\/blog\/conductivity-and-conductivity-meters\/","title":{"rendered":"Conductivity and Conductivity Meters"},"content":{"rendered":"<p>Conductivity is the measurement of the electrolytes in a solution and is defined as the conductance in a given volume. Conductance is the ability of the solution to conduct electric current.\u00a0<\/p>\n<div id=\"attachment_3520\" style=\"width: 142px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.coleparmer.com\/Product\/Oakton_CON_11_handheld_conductivity_TDS_meter\/EW-35607-40?referred_id=5618\" rel=\"nofollow noopener noreferrer\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3520\" class=\" wp-image-3520  \" alt=\"Oakton\u00ae Instruments CON 11 Handheld Conductivity\/TDS Meter  \" src=\"https:\/\/www.coleparmer.com\/blog\/wp-content\/uploads\/2014\/01\/oakton_con11handheldconductivitymeter.jpg\" width=\"132\" height=\"210\"><\/a><p id=\"caption-attachment-3520\" class=\"wp-caption-text\">Oakton\u00ae Instruments CON 11 Handheld Conductivity\/TDS Meter<\/p><\/div>\n<p>Here are some typical questions about conductivity:<\/p>\n<p><b>Q: How does temperature affect conductivity readings?<\/b><\/p>\n<p>A: The effect depends on the solution to be measured. The effect is greatest in low ionic strength (low conductivity) solutions. A general rule to follow is there will be a 2% change (increase)\/degree C. This rule can be followed for most aqueous solutions, however if you require a high degree of accuracy, you should consult a chart for the particular solution you are measuring. Organics also have very different temperature curves.<\/p>\n<p><b>Q: What is the difference between conductivity and salinity?<\/b><\/p>\n<p>A: The probe is the same for conductivity and salinity, but a correction factor is applied to the reading in a salinity meter. The correction factor takes the conductivity reading and converts it to ppm of a specific salt. The salt varies from manufacturer to manufacturer. Some use NaCl while others use CaCO<sub>3<\/sub>.<\/p>\n<p><b>Q: How are conductivity and TDS related?<\/b><\/p>\n<p>A: Salts, minerals, and even dissolved gases contribute uniformly to the conductivity of a solution. This means that the conductivity can be used as an indicator of the amount of dissolved materials in a solution. TDS can be used fairly accurately when comparing the status of a single source, such as NaCl, but error can arise when trying to compare two different types of solutions. It is necessary to calibrate the meter using the same dissolved materials that are in the test solution.\u00a0<\/p>\n<p><b>Q: Are conductivity probes interchangeable with meters?<\/b><\/p>\n<p>A: No, you cannot place one manufacturer\u2019s probe on another manufacturer\u2019s meter. The cell constant may be different and the pin configurations are usually different. The type of thermistor used for temperature compensation is usually different also. The cell constant is not a big problem, but not matching the pin configuration and temperature compensating element used would be a problem.<\/p>\n<p><i>See all <\/i><a href=\"https:\/\/www.coleparmer.com\/Category\/Conductivity_Resistivity_TDS_Meters_and_Testers\/555?referred_id=5618\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><i>conductivity meters<\/i><\/a><i>.<\/i><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Conductivity is the measurement of the electrolytes in a solution and is defined as the conductance in a given volume. Conductance is the ability of the solution to conduct electric current.\u00a0 Here are some typical&#8230;<\/p>\n","protected":false},"author":20,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13,15,24],"tags":[362],"class_list":["post-3518","post","type-post","status-publish","format-standard","hentry","category-for-the-lab","category-oakton-instruments","category-water-sampling","tag-conductivity-meter"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Conductivity and Conductivity Meters | from Cole-Parmer Blog<\/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:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Conductivity and Conductivity Meters | from Cole-Parmer Blog\" \/>\n<meta property=\"og:description\" content=\"Conductivity is the measurement of the electrolytes in a solution and is defined as the conductance in a given volume. Conductance is the ability of the solution to conduct electric current.\u00a0 Here are some typical...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/\" \/>\n<meta property=\"og:site_name\" content=\"Cole-Parmer Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/antylia\" \/>\n<meta property=\"article:published_time\" content=\"2014-01-16T20:00:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-09-24T17:40:20+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.coleparmer.com\/blog\/wp-content\/uploads\/2014\/01\/oakton_con11handheldconductivitymeter.jpg\" \/>\n<meta name=\"author\" content=\"Cole-Parmer Blog Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@antylia\" \/>\n<meta name=\"twitter:site\" content=\"@antylia\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Cole-Parmer Blog Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Conductivity and Conductivity Meters | from Cole-Parmer Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/","og_locale":"en_US","og_type":"article","og_title":"Conductivity and Conductivity Meters | from Cole-Parmer Blog","og_description":"Conductivity is the measurement of the electrolytes in a solution and is defined as the conductance in a given volume. Conductance is the ability of the solution to conduct electric current.\u00a0 Here are some typical...","og_url":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/","og_site_name":"Cole-Parmer Blog","article_publisher":"https:\/\/www.facebook.com\/antylia","article_published_time":"2014-01-16T20:00:33+00:00","article_modified_time":"2019-09-24T17:40:20+00:00","og_image":[{"url":"https:\/\/www.coleparmer.com\/blog\/wp-content\/uploads\/2014\/01\/oakton_con11handheldconductivitymeter.jpg","type":"","width":"","height":""}],"author":"Cole-Parmer Blog Team","twitter_card":"summary_large_image","twitter_creator":"@antylia","twitter_site":"@antylia","twitter_misc":{"Written by":"Cole-Parmer Blog Team","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/#article","isPartOf":{"@id":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/"},"author":{"name":"Cole-Parmer Blog Team","@id":"https:\/\/www.coleparmer.com\/blog\/#\/schema\/person\/bd8d004d4d77d6b31800fa11177c6da9"},"headline":"Conductivity and Conductivity Meters","datePublished":"2014-01-16T20:00:33+00:00","dateModified":"2019-09-24T17:40:20+00:00","mainEntityOfPage":{"@id":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/"},"wordCount":358,"commentCount":0,"publisher":{"@id":"https:\/\/www.coleparmer.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/#primaryimage"},"thumbnailUrl":"https:\/\/www.coleparmer.com\/blog\/wp-content\/uploads\/2014\/01\/oakton_con11handheldconductivitymeter.jpg","keywords":["conductivity meter"],"articleSection":["For the Lab","Oakton Instruments","Water Sampling"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/","url":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/","name":"Conductivity and Conductivity Meters | from Cole-Parmer Blog","isPartOf":{"@id":"https:\/\/www.coleparmer.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/#primaryimage"},"image":{"@id":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/#primaryimage"},"thumbnailUrl":"https:\/\/www.coleparmer.com\/blog\/wp-content\/uploads\/2014\/01\/oakton_con11handheldconductivitymeter.jpg","datePublished":"2014-01-16T20:00:33+00:00","dateModified":"2019-09-24T17:40:20+00:00","breadcrumb":{"@id":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/#primaryimage","url":"https:\/\/www.coleparmer.com\/blog\/wp-content\/uploads\/2014\/01\/oakton_con11handheldconductivitymeter.jpg","contentUrl":"https:\/\/www.coleparmer.com\/blog\/wp-content\/uploads\/2014\/01\/oakton_con11handheldconductivitymeter.jpg","width":189,"height":300,"caption":"Oakton\u00ae Instruments CON 11 Handheld Conductivity\/TDS Meter"},{"@type":"BreadcrumbList","@id":"https:\/\/www.coleparmer.com.cn\/blog\/conductivity-and-conductivity-meters\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.coleparmer.com\/blog\/"},{"@type":"ListItem","position":2,"name":"Conductivity and Conductivity Meters"}]},{"@type":"WebSite","@id":"https:\/\/www.coleparmer.com\/blog\/#website","url":"https:\/\/www.coleparmer.com\/blog\/","name":"Cole-Parmer Blog","description":"","publisher":{"@id":"https:\/\/www.coleparmer.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.coleparmer.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.coleparmer.com\/blog\/#organization","name":"Antylia Scientific","url":"https:\/\/www.coleparmer.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.coleparmer.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/i0.wp.com\/www.coleparmer.co.uk\/blog\/wp-content\/uploads\/2021\/02\/AntyliaScientific_CMYK.jpg?fit=400%2C107&ssl=1","contentUrl":"https:\/\/i0.wp.com\/www.coleparmer.co.uk\/blog\/wp-content\/uploads\/2021\/02\/AntyliaScientific_CMYK.jpg?fit=400%2C107&ssl=1","width":400,"height":107,"caption":"Antylia Scientific"},"image":{"@id":"https:\/\/www.coleparmer.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/antylia","https:\/\/x.com\/antylia","https:\/\/www.linkedin.com\/company\/antylia\/","https:\/\/www.youtube.com\/channel\/UC41i86hGEGhQhM1KMqrDnZg"]},{"@type":"Person","@id":"https:\/\/www.coleparmer.com\/blog\/#\/schema\/person\/bd8d004d4d77d6b31800fa11177c6da9","name":"Cole-Parmer Blog Team","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.coleparmer.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/34e3e6aa661d0e443fb9050a9175a092?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/34e3e6aa661d0e443fb9050a9175a092?s=96&d=mm&r=g","caption":"Cole-Parmer Blog Team"},"url":"https:\/\/www.coleparmer.com\/blog\/author\/donna-donahue\/"}]}},"_links":{"self":[{"href":"https:\/\/www.coleparmer.com\/blog\/wp-json\/wp\/v2\/posts\/3518","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.coleparmer.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.coleparmer.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.coleparmer.com\/blog\/wp-json\/wp\/v2\/users\/20"}],"replies":[{"embeddable":true,"href":"https:\/\/www.coleparmer.com\/blog\/wp-json\/wp\/v2\/comments?post=3518"}],"version-history":[{"count":1,"href":"https:\/\/www.coleparmer.com\/blog\/wp-json\/wp\/v2\/posts\/3518\/revisions"}],"predecessor-version":[{"id":10403,"href":"https:\/\/www.coleparmer.com\/blog\/wp-json\/wp\/v2\/posts\/3518\/revisions\/10403"}],"wp:attachment":[{"href":"https:\/\/www.coleparmer.com\/blog\/wp-json\/wp\/v2\/media?parent=3518"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.coleparmer.com\/blog\/wp-json\/wp\/v2\/categories?post=3518"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.coleparmer.com\/blog\/wp-json\/wp\/v2\/tags?post=3518"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}