{"id":28426,"date":"2019-12-25T18:29:58","date_gmt":"2019-12-25T10:29:58","guid":{"rendered":"\/blog\/?p=28426"},"modified":"2020-01-02T14:13:35","modified_gmt":"2020-01-02T06:13:35","slug":"types-of-thermocouple-and-which-thermocouple-sensor-to-buy","status":"publish","type":"post","link":"https:\/\/www.seeedstudio.com\/blog\/2019\/12\/25\/types-of-thermocouple-and-which-thermocouple-sensor-to-buy\/","title":{"rendered":"Thermocouple Sensor: What it is, types, and Buying Guide"},"content":{"rendered":"\n<p>A thermocouple is a device known for temperature measurement and consists of various sensor types for consumers to choose from. Ranging from K type thermocouple to J type, to T type and more, understanding its differences and buying one that&#8217;s suitable for your next thermocouple Arduino project may not be an easy task to handle!<\/p>\n\n\n\n<p>Fear not though, through this guide, I&#8217;ll be helping you out by explaining:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>What is a thermocouple?<\/li><li>How does a thermocouple work?<\/li><li>What is the type of thermocouples?<\/li><li>How to choose a thermocouple?<\/li><li>How to use a thermocouple with Arduino?<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What is a thermocouple? Definition<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/media-cdn.seeedstudio.com\/media\/catalog\/product\/cache\/ab187aaa5f626ad16c8031644cd2de5b\/h\/t\/httpsstatics3.seeedstudio.comseeedfile2018-08bazaar910232_thermocouplektype1m2.jpg\" alt=\"\" width=\"350\" height=\"263\"\/><figcaption>K-Type Thermocouple<\/figcaption><\/figure><\/div>\n\n\n\n<p>A thermocouple is a sensor made of two pieces of metal used to measure temperature. These two pieces of metals are welded together at one end, creating a junction where the temperature is measured. <\/p>\n\n\n\n<p>The above picture is a K type thermocouple available here at Seeed! You can click\u00a0<a href=\"https:\/\/www.seeedstudio.com\/Thermocouple-Temperature-Sensor-K-Type-1M-p-3132.html\">here<\/a>\u00a0to learn more!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>How do thermocouples work?<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Thermocouples working principle<\/strong><\/h4>\n\n\n\n<p>Thermocouple work on the principle of Seebeck effect (also known as thermoelectric effect), a principle discovered by German physicist Thomas Johann Seebeck back in the 18th century.<\/p>\n\n\n\n<p>The Seebeck effect states that when two different metal is joined together at two junctions, an electromotive force (emf) is generated. <\/p>\n\n\n\n<p>To further understand this working principle, we&#8217;ll take a look at a thermocouple circuit!<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Thermocouple circuit explanation<\/strong><\/h4>\n\n\n\n<p>The diagram below showcases an electrical circuit that&#8217;s commonly seen in thermocouples. Here&#8217;s how thermocouples work through this illustration: <\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/www.powersystemsdesign.com\/images\/articles\/1509569069-Figure%201%20-%20Thermocouple.jpg\" alt=\"\"\/><figcaption><a href=\"https:\/\/www.google.com\/url?sa=i&amp;source=images&amp;cd=&amp;ved=2ahUKEwjkmc654M_mAhUNMawKHWEbDuAQjRx6BAgBEAQ&amp;url=https%3A%2F%2Fwww.powersystemsdesign.com%2Farticles%2Fthe-abcs-of-thermocouples%2F97%2F12198&amp;psig=AOvVaw2KlB6kdiyM4bdgApssAf1e&amp;ust=1577327138599676\">Thermocouple Diagram<\/a><\/figcaption><\/figure><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The two pieces of metal are welded together at one end, creating a junction<\/li><li>The hot junction is the heat source that generates a temperature<\/li><li>When there&#8217;s a change in temperature, a voltage differential is produced across the metals<\/li><li>Thermocouple reference tables are then referred to interpret the voltage for the temperature to be calculated<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>What are thermocouples used for?<\/strong><\/h3>\n\n\n\n<p>Now that we&#8217;ve understood how thermocouples work, we&#8217;ll now take a look at its applications.<\/p>\n\n\n\n<p>Thermocouples are used in not only industrial applications but in your day to day appliances as well:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Industrial applications:<\/strong><ul><li>Temperature measurement of metals<\/li><li>Temperature measurement for kilns, engines, processes<\/li><li>Food industry; milk pasteurization and cryogenic<\/li><\/ul><\/li><\/ul>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Day to day applications:<\/strong><ul><li>Thermocouple furnace<\/li><li>Stoves<\/li><li>Toasters<\/li><\/ul><\/li><\/ul>\n\n\n\n<p>Overall, thermocouples are a widely used type of temperature sensor for measurement and control, although it contains differences when compared to other temperature sensor types such as RTD and thermostat. We&#8217;ll talk about the differences later on.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>What&#8217;s the difference between thermocouple, RTD, thermistor?<\/strong><\/h3>\n\n\n\n<p>A thermocouple can be compared alongside the RTD and thermistors as they are all common types of sensors for temperature measurement.  <\/p>\n\n\n\n<p>Note: The following table is for comparative purposes only, where the suitability of each sensor depends on what you&#8217;re trying to do with it <\/p>\n\n\n\n<table>\n  <tr>\n    <th><\/th>\n    <th>RTD<\/th>\n    <th>Thermisistor<\/th>\n    <th>Thermocouple<\/th>\n  <\/tr>\n  <tr>\n    <td>How temperature is measured<\/td>\n    <td>Uses metal resistors and measure temperature through resistance changes<\/td>\n    <td>Uses ceramic\/polymer resistor and measure temperature through resistance changes<\/td>\n    <td>Uses two metal wires and measure temeperature through voltage differential in the junctions<\/td>\n  <\/tr>\n  <tr>\n    <td>Typical temperature range<\/td>\n    <td>-200 to 650\u00b0C<\/td>\n    <td>-100 to 325\u00b0C<\/td>\n    <td>200 to 1750\u00b0C<\/td>\n  <\/tr>\n  <tr>\n    <td>Cost <\/td>\n    <td>Most expensive<\/td>\n    <td>Low cost to moderate<\/td>\n    <td>Lowest<\/td>\n  <\/tr>\n  <tr>\n    <td>Sensing sensitivity<\/td>\n    <td>Poor sensitivity with general response time being 1 to 50s<\/td>\n    <td>Decent sensitivity with general response time<\/td>\n    <td>Good sensitivity with general response time being 0.10 to 10s<\/td>\n  <\/tr>\n  <tr>\n    <td>Linearity<\/td>\n    <td>Fairly linear<\/td>\n    <td>Exponential<\/td>\n    <td>Non-Linear<\/td>\n  <\/tr>\n  <tr>\n    <td>Thermal Excitation<\/td>\n    <td>Required, current source<\/td>\n    <td>Required, voltage source<\/td>\n    <td>None required<\/td>\n  <\/tr>\n  <tr>\n    <td>Long-term stability<\/td>\n    <td>Stable, 0.05\u00b0C<\/td>\n    <td>Stable, 0.2\u00b0C<\/td>\n    <td>Variable<\/td>\n  <\/tr>\n  <tr>\n    <td>Best used for<\/td>\n    <td>More consistent readings with typical accuracy being \u00b10.1\u00b0C<\/td>\n    <td>Consistent readings with typical accuracy being \u00b10.1\u00b0C<\/td>\n    <td>Higher temperature range with typical accuracy being \u00b10.5\u00b0C<\/td>\n  <\/tr>\n<\/table>\n\n\n\n<p><\/p>\n\n\n\n<p>Apart from the above comparison between thermocouples, rtd, and thermistors, differences between thermocouple and thermopile are commonly talked about as well. <\/p>\n\n\n\n<p>To help you simply understand, there&#8217;s only one main difference you&#8217;ll have to take note:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>A thermocouple is a sensor made of two pieces of metal used to measure temperature.<\/li><li>A thermopile is a device that converts thermal energy into electrical energy<\/li><\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What are the types of Thermocouples?<\/strong><\/h2>\n\n\n\n<p>Now that you&#8217;ve understood what thermocouples are and how it works, we&#8217;ll now dive deeper into what are the types of thermocouples?<\/p>\n\n\n\n<p>There is 8 thermocouples type, classified as &#8220;base metal and noble metal namely the following:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Thermocouple type that&#8217;s made from Base Metal:<ul><li>K type<\/li><li>J type<\/li><li>T type<\/li><li>E type<\/li><li>N type<\/li><\/ul><\/li><li>Thermocouple type that&#8217;s made from Noble Metal:<ul><li>R type<\/li><li>S type<\/li><li>B type<\/li><\/ul><\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>K type Thermocouple\u00a0(Most\u00a0popular)<\/strong><\/h3>\n\n\n\n<p>Undoubtedly the most popular thermocouple type is the K type thermocouple. Known for its wide temperature range and durability, it&#8217;s one that many consider! <\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Here is all about the K type thermocouple:<\/strong><\/h4>\n\n\n\n<p><strong>Lead material used:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Nickel-Chromium (+), Alumel (-)<\/li><\/ul>\n\n\n\n<p><strong>Color-Code:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>ANSI (America): Yellow (+), Red (-)<\/li><li>IEC: Green (+), White (-)<\/li><\/ul>\n\n\n\n<p><strong>Temperature range:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>-200\u00b0C to 1250\u00b0C <\/li><li>Fahrenheit: \u2013328 to 2,282F <\/li><\/ul>\n\n\n\n<p><strong>Accuracy<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Standard: +\/- 2.2\u00b0C or +\/- 0.75% <\/li><li>Special limits of error: +\/- 1.1\u00b0C or +\/- 0.4%  <\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>J type Thermocouple (less\u00a0powerful\u00a0option\u00a0then\u00a0the\u00a0K)<\/strong><\/h3>\n\n\n\n<p>Second, on the base metal list is the J type thermocouple. Despite having a smaller temperature range and less capable of sensing at higher temperatures, it&#8217;s still a common option! <\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Here&#8217;s all about the J type Thermocouple:<\/strong><\/h4>\n\n\n\n<p><strong>Lead material used:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Iron (+), Constantan (-)<\/li><\/ul>\n\n\n\n<p><strong>Color-code:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>ANSI (America): White (+), Red (-)<\/li><li>IEC: Black (+), White (-)<\/li><\/ul>\n\n\n\n<p><strong>Temperature Range:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>-210 to 760\u00b0C  <\/li><li>Fahrenheit: \u2013346 to 1,400F  <\/li><\/ul>\n\n\n\n<p><strong>Accuracy:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Standard: +\/- 2.2\u00b0C or +\/- 0.75% <\/li><li>Special limits of Error: +\/- 1.1\u00b0C or +\/- 0.4%   <\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>T type Thermocouple\u00a0(Low-temperature\u00a0option)<\/strong><\/h3>\n\n\n\n<p>Thirdly, T type thermocouples. Commonly used in food industry applications that require extremely low temperatures such as cryogenics, it&#8217;s one that offers lower temperature readings despite a smaller temperature range.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Here&#8217;s all about the T type Thermocouple: <\/strong><\/h4>\n\n\n\n<p><strong>Lead material used:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Copper (+), Constantan (-)<\/li><\/ul>\n\n\n\n<p><strong>Color-code:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>ANSI (America): Blue (+), Red (-)<\/li><li>IEC: Brown (+), White (-)<\/li><\/ul>\n\n\n\n<p><strong>Temperature range:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>-270 TO 370\u00b0C<\/li><li>Fahrenheit: \u2013454 to 700F     <\/li><\/ul>\n\n\n\n<p><strong>Accuracy:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Standard: +\/- 1.0\u00b0C or +\/- 0.75%<br>Special Limits of Error: +\/- 0.5\u00b0C or 0.4% <\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>E type Thermocouple (Higher accuracy than K&amp;J)<\/strong><\/h3>\n\n\n\n<p>Before you read the title and go is Type E the best thermocouple type because it has higher accuracy than the popular ones, hold on!<\/p>\n\n\n\n<p>E type thermocouple does offer higher accuracy and a stronger signal than type K&amp;J but only at moderate temperature ranges and below! <\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Here&#8217;s all about the E type thermocouple!<\/strong><\/h4>\n\n\n\n<p><strong>Lead material used:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Nickel-Chromium (+), Constantan (-)<\/li><\/ul>\n\n\n\n<p><strong>Color-code:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>ANSI (America): Purple (+), Red (-)<\/li><li>IEC: Purple (+), White (-)<\/li><\/ul>\n\n\n\n<p><strong>Temperature range:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>-200 to 900\u00b0C <\/li><li>Fahrenheit: -328 to 1652F<\/li><\/ul>\n\n\n\n<p><strong>Accuracy:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Standard: +\/- 1.7\u00b0C or +\/- 0.5%<\/li><li>Special Limits of Error: +\/- 1.0C or 0.4%<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>N type Thermocouple (Expensive version of Type K)<\/strong><\/h3>\n\n\n\n<p>The N type Thermocouple shares similar features with the popular K type in terms of temperature limit and accuracy and though it is priced more expensive. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Here&#8217;s all about the type N thermocouple:<\/strong><\/h4>\n\n\n\n<p><strong>Lead material used:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Nicrosil (+), Nisil (-)<\/li><\/ul>\n\n\n\n<p><strong>Color-code: <\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>ANSI (America): Orange (+), Red (-)<\/li><li>IEC: Rose (+), White (-) <\/li><\/ul>\n\n\n\n<p><strong>Temperature Range:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>-270 to 392\u00b0C  <\/li><li>Fahrenheit: -454 to 2300F <\/li><\/ul>\n\n\n\n<p><strong>Accuracy:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Standard: +\/- 2.2\u00b0C or +\/- 0.75%<\/li><li>Special Limits of Error: +\/- 1.1\u00b0C  or 0.4% <\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>S type Thermocouple (Hightemperature thermocouple)<\/strong><\/h3>\n\n\n\n<p>First of the three noble metal type thermocouples is the Type S. Designed with high temperatures sensing capabilities, it&#8217;s commonly used in conditions that require that. Such conditions being Pharmaceutical industries, BioTech, etc.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Here&#8217;s all about the Type S Thermocouple:<\/strong><\/h4>\n\n\n\n<p><strong>Lead material used:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Platinum Rhodium (+), Platinum (-)<\/li><\/ul>\n\n\n\n<p><strong>Color code:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>ANSI (America): Black (+), Red (-)<\/li><li>IEC: Orange (+), White (-)<\/li><\/ul>\n\n\n\n<p><strong>Temperature Range:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>0 to 1450\u00b0C  <\/li><li>Fahrenheit: 32 to 2642F<\/li><\/ul>\n\n\n\n<p><strong>Accuracy:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Standard: +\/- 1.5\u00b0C  or +\/- 0.25%<\/li><li>Special Limits of Error: +\/- 0.6\u00b0C  or 0.1%<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>R Type Thermocouple (Similar but more expensive than type S)<\/strong><\/h3>\n\n\n\n<p>Second the three noble metal type thermocouples are type R. Similarly to the type S, it&#8217;s designed with high temperatures sensing capabilities. However, R type is more expensive than S type since it&#8217;s composed with a higher percentage of Rhodium. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Here&#8217;s all about the Type R Thermocouple:<\/strong><\/h4>\n\n\n\n<p><strong>Lead material used:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Platinum Rhodium (+), Platinum (-)<\/li><\/ul>\n\n\n\n<p><strong>Color-code:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>ANSI (America): Black (+), Red (-) <\/li><li>IEC: Orange (+), White (-)<\/li><\/ul>\n\n\n\n<p><strong>Temperature Range:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>0 to 1450\u00b0C  <\/li><li>Fahrenheit: 32 to 2642F <\/li><\/ul>\n\n\n\n<p><strong>Accuracy:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Standard: +\/- 1.5\u00b0C  or +\/- 0.25%<\/li><li>Special Limits of Error: +\/- 0.6\u00b0C  or 0.1%<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>B type Thermocouple (Highest temperature limit)<\/strong><\/h3>\n\n\n\n<p>Lastly on this list is the type B Thermocouple. Thought that the Type R and Type S offer a high-temperature limit? The B type improves on that by having a higher temperature limit among all that are listed! <\/p>\n\n\n\n<p>Not only does it offer the highest temperature limit, but it also maintains accuracy and stability at those high temperatures as well!<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Here&#8217;s all about the Type B Thermocouple:<\/strong><\/h4>\n\n\n\n<p><strong>Lead material used:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Platinum Rhodium (+), Platinum Rhodium (-)<\/li><\/ul>\n\n\n\n<p><strong>Color Code:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>ANSI (America): Black (+), Red (-) <\/li><li>IEC: Orange (+), White (-)<\/li><\/ul>\n\n\n\n<p><strong>Temperature Range:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>0 to 1700\u00b0C<\/li><li>Fahrenheit: 32 to 3100F <\/li><\/ul>\n\n\n\n<p><strong>Accuracy:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Standard: +\/- 0.5%<\/li><li>Special Limits of Error: +\/- 0.25%<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">What are the differences between all Thermocouple Type<\/h3>\n\n\n\n<p>Here&#8217;s a summarized comparative table between all thermocouple types. You may refer to this in making a decision on how to choose a thermocouple<\/p>\n\n\n\n<style type=\"text\/css\">\n.tg  {border-collapse:collapse;border-spacing:0;}\n.tg td{font-family:Arial, sans-serif;font-size:14px;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:black;}\n.tg th{font-family:Arial, sans-serif;font-size:14px;font-weight:normal;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;border-color:black;}\n.tg .tg-cly1{text-align:left;vertical-align:middle}\n.tg .tg-wa1i{font-weight:bold;text-align:center;vertical-align:middle}\n.tg .tg-amwm{font-weight:bold;text-align:center;vertical-align:top}\n.tg .tg-yla0{font-weight:bold;text-align:left;vertical-align:middle}\n.tg .tg-0lax{text-align:left;vertical-align:top}\n<\/style>\n<table class=\"tg\">\n  <tr>\n    <th class=\"tg-cly1\"><\/th>\n    <th class=\"tg-wa1i\">Lead Material Used<\/th>\n    <th class=\"tg-amwm\">Color-Code<\/th>\n    <th class=\"tg-wa1i\">Temperature Range<\/th>\n    <th class=\"tg-wa1i\">Accuracy<\/th>\n  <\/tr>\n  <tr>\n    <td class=\"tg-yla0\">K type<\/td>\n    <td class=\"tg-cly1\">Nickel-Chromium (+)<br>Alumel (-)<br><\/td>\n    <td class=\"tg-0lax\">ANSI (America): Yellow (+), Red (-)<br><br>IEC: Green (+), White (-)<\/td>\n    <td class=\"tg-cly1\">200\u00b0C to 1250\u00b0C <br><br>Fahrenheit: \u2013328 to 2,282F<\/td>\n    <td class=\"tg-cly1\">Standard: +\/- 2.2\u00b0C or +\/- 0.75%<br><br>Special: +\/- 1.1\u00b0C or +\/- 0.4%<\/td>\n  <\/tr>\n  <tr>\n    <td class=\"tg-yla0\">J type<\/td>\n    <td class=\"tg-cly1\">Iron (+)<br>Constantan (-)<\/td>\n    <td class=\"tg-0lax\">ANSI (America): White (+), Red (-)<br><br>IEC: Black (+), White (-)<\/td>\n    <td class=\"tg-cly1\">-210 to 760\u00b0C<br>  <br>Fahrenheit: \u2013346 to 1,400F<\/td>\n    <td class=\"tg-cly1\">Standard: +\/- 2.2\u00b0C or +\/- 0.75%<br><br>Special: +\/- 1.1\u00b0C or +\/- 0.4%<\/td>\n  <\/tr>\n  <tr>\n    <td class=\"tg-yla0\">T type<\/td>\n    <td class=\"tg-cly1\">Copper (+)<br>Constantan (-)<\/td>\n    <td class=\"tg-0lax\">ANSI (America): Blue (+), Red (-)<br><br>IEC: Brown (+), White (-)<\/td>\n    <td class=\"tg-cly1\">-270 TO 370\u00b0C<br><br>Fahrenheit: \u2013454 to 700F<\/td>\n    <td class=\"tg-cly1\">Standard: +\/- 1.0\u00b0C or +\/- 0.75%<br><br>Special: +\/- 0.5\u00b0C or 0.4%<\/td>\n  <\/tr>\n  <tr>\n    <td class=\"tg-yla0\">E type<\/td>\n    <td class=\"tg-cly1\">Nickel-Chromium (+)<br>Constantan (-)<br><\/td>\n    <td class=\"tg-0lax\">ANSI (America): Purple (+), Red (-)<br><br>IEC: Purple (+), White (-)<\/td>\n    <td class=\"tg-cly1\">-200 to 900\u00b0C <br><br>Fahrenheit: -454 to 1600F<\/td>\n    <td class=\"tg-cly1\">Standard: +\/- 1.7\u00b0C or +\/- 0.5%<br><br>Special: +\/- 1.0C or 0.4%<br><\/td>\n  <\/tr>\n  <tr>\n    <td class=\"tg-yla0\">N type<\/td>\n    <td class=\"tg-cly1\">Nicrosil (+)<br>Nisil (-)<\/td>\n    <td class=\"tg-0lax\">ANSI (America): Orange (+), Red (-)<br><br>IEC: Rose (+), White (-)<\/td>\n    <td class=\"tg-cly1\">270 to 392\u00b0C  <br><br>Fahrenheit: -454 to 2300F<\/td>\n    <td class=\"tg-cly1\">Standard: +\/- 2.2\u00b0C or +\/- 0.75%<br><br>Special: +\/- 1.1\u00b0C  or 0.4%<\/td>\n  <\/tr>\n  <tr>\n    <td class=\"tg-yla0\">S type<\/td>\n    <td class=\"tg-cly1\">Platinum Rhodium (+)<br>Platinum (-)<\/td>\n    <td class=\"tg-0lax\">ANSI (America): Black (+), Red (-)<br><br>IEC: Orange (+), White (-)<\/td>\n    <td class=\"tg-cly1\">0 to 1450\u00b0C  <br><br>Fahrenheit: -32 to 2642F<\/td>\n    <td class=\"tg-cly1\">Standard: +\/- 1.5\u00b0C  or +\/- 0.25%<br><br>Special: +\/- 0.6\u00b0C  or 0.1%<br><\/td>\n  <\/tr>\n  <tr>\n    <td class=\"tg-yla0\">R type<\/td>\n    <td class=\"tg-cly1\">Platinum Rhodium (+)<br>Platinum (-)<br><br>Higher percentage of Rhodium<\/td>\n    <td class=\"tg-0lax\">ANSI (America): Black (+), Red (-) <br><br>IEC: Orange (+), White (-)<\/td>\n    <td class=\"tg-cly1\">0 to 1450\u00b0C  <br><br>Fahrenheit: -32 to 2642F<\/td>\n    <td class=\"tg-cly1\">Standard: +\/- 1.5\u00b0C  or +\/- 0.25%<br><br>Special: +\/- 0.6\u00b0C  or 0.1%<\/td>\n  <\/tr>\n  <tr>\n    <td class=\"tg-yla0\">B type<\/td>\n    <td class=\"tg-cly1\">Platinum Rhodium (+)<br><br>Platinum Rhodium (-)<\/td>\n    <td class=\"tg-0lax\">ANSI (America): Black (+), Red (-) <br><br>IEC: Orange (+), White (-)<\/td>\n    <td class=\"tg-cly1\">0 to 1700\u00b0C<br><br>Fahrenheit: 32 to 3100F<\/td>\n    <td class=\"tg-cly1\">Standard: +\/- 0.5%<br><br>Special: +\/- 0.25%<br><\/td>\n  <\/tr>\n<\/table>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How to choose a thermocouple sensor?<\/strong><\/h2>\n\n\n\n<p>Selecting a thermocouple ultimately comes down to what you&#8217;re planning to use it for. You can firstly refer to the table from the above section for an overall understanding of all the thermocouple types before considering the factors below:<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Temperature range:<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>For the widest temperature range: Choose the type k thermocouple <\/li><li>For stability in high temperatures: Choose the type N thermocouple<\/li><li>For low-temperature usage: Choose the type T thermocouple<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>The environment you&#8217;re using it in:<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li>For usage in a safe environment with no chemical or abrasions; choose an ungrounded thermocouple as it offers faster response times<ul><li>Ungrounded thermocouple are thermocouple wires that are exposed, not touching the sheath<\/li><\/ul><\/li><li>For usage in an environment prone to chemical or abrasions, grounded thermocouple work best <\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How\u00a0to\u00a0use\u00a0thermocouple\u00a0with\u00a0Arduino?<\/strong><\/h2>\n\n\n\n<p>Be it whether you&#8217;ve made up your mind on which type of thermocouple to buy or not, with just a<br>thermocouple alone, it&#8217;s insufficient for usage with an Arduino.  <\/p>\n\n\n\n<p>Hence, this section will provide recommendations on products that you can use your thermocouple with your Arduino!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong><a href=\"https:\/\/www.seeedstudio.com\/Grove-High-Temperature-Sensor.html?utm_source=blog&amp;utm_medium=blog\">Grove &#8211; High Temperature Sensor<\/a><\/strong><\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/media-cdn.seeedstudio.com\/media\/catalog\/product\/cache\/ab187aaa5f626ad16c8031644cd2de5b\/h\/t\/httpsstatics3.seeedstudio.comproducthigh20temperature20sensor_01.jpg\" alt=\"\" width=\"350\" height=\"263\"\/><\/figure><\/div>\n\n\n\n<p>The Grove &#8211; High Temperature Sensor uses a K type thermocouple Temperature detection, with a Thermistor to detect The ambient Temperature as Temperature compensation.\u00a0 <\/p>\n\n\n\n<p>Thanks to our <a href=\"http:\/\/wiki.seeedstudio.com\/Grove_System\/\">Grove system<\/a>, and a dedicated Grove port on this sensor, you can connect it to your Arduino through plug-and-play, making thermocouple Arduino a simple reality!<\/p>\n\n\n\n<p>Interested to find out more? You can head to our product page <a href=\"https:\/\/www.seeedstudio.com\/Grove-High-Temperature-Sensor.html?utm_source=blog&amp;utm_medium=blog\">here<\/a>! We provide a thermocouple Arduino guide alongside it as well!<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Thermocouple Amplifiers<\/strong><\/h3>\n\n\n\n<p>Another option you can consider pairing your thermocouple with an Arduino is with our selection of thermocouple amplifiers! <\/p>\n\n\n\n<p style=\"background-color:#e6fae5\" class=\"has-background\">Note: Our selection of thermocouple amplifiers all have cold junction compensation, and a thermocouple-to-digital converter inside. <\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong><a href=\"https:\/\/www.seeedstudio.com\/Grove-1-Wire-Thermocouple-Amplifier-MAX31850K-p-3159.html?utm_source=blog&amp;utm_medium=blog\">Grove \u2013 1-Wire Thermocouple Amplifier (MAX31850K)<\/a><\/strong><\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/blog.seeedstudio.com\/wp-content\/uploads\/2019\/09\/IMG_0086-300x200.png\" alt=\"\"\/><\/figure><\/div>\n\n\n\n<p>You&#8217;ve probably heard about MAX31855 thermocouple amplifiers but this thermocouple amplifier that&#8217;s based on MAX31850 offers the same resolution when compared. <\/p>\n\n\n\n<p>Specifically made for the type k thermocouples, it has a 64-bit ROM and 1-wire interface, allowing for multiple thermocouples to be used with only one microcontroller!<\/p>\n\n\n\n<p>Interested to find out more about its features and specifications, and applications? You can head to our product page <a href=\"https:\/\/www.seeedstudio.com\/Grove-1-Wire-Thermocouple-Amplifier-MAX31850K-p-3159.html?utm_source=blog&amp;utm_medium=blog\">here<\/a>! We provide an Arduino guide alongside it as well! <\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong><a href=\"https:\/\/www.seeedstudio.com\/Grove-I2C-Thermocouple-Amplifier-MCP9600-p-3199.html?utm_source=blog&amp;utm_medium=blog\">Grove &#8211; I2C Thermocouple Amplifier (MCP9600)<\/a><\/strong><\/h4>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img decoding=\"async\" src=\"https:\/\/media-cdn.seeedstudio.com\/media\/catalog\/product\/cache\/ab187aaa5f626ad16c8031644cd2de5b\/h\/t\/httpsstatics3.seeedstudio.comseeedfile2018-10bazaar970557_1.jpg\" alt=\"\" width=\"350\" height=\"263\"\/><\/figure><\/div>\n\n\n\n<p>The other option would be this thermocouple amplifier that&#8217;s based on the MCP9600. When compared to the MAX31855, this option offers a higher resolution despite using the same I2C interface.<\/p>\n\n\n\n<p>Similarly to the previous thermocouple amplifier option, this module is designed to be used in conjunction with a k-type thermocouple as well!<\/p>\n\n\n\n<p>Interested to find out more about its features and specifications, and applications? You can head to our product page <a href=\"https:\/\/www.seeedstudio.com\/Grove-1-Wire-Thermocouple-Amplifier-MAX31850K-p-3159.html?utm_source=blog&amp;utm_medium=blog\">here<\/a>! We provide an Arduino guide alongside it as well!  <\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Summary<\/strong><\/h2>\n\n\n\n<p>That&#8217;s all today for today on thermocouples and a guide to selecting one. I hope with this blog, you&#8217;ve understood more about thermocouples, the types,  and how to select a suitable one for your next thermocouple Arduino project!<\/p>\n\n\n\n<p>For more information on the k type thermocouple we offer, you can check out our<a href=\"https:\/\/www.seeedstudio.com\/Thermocouple-Temperature-Sensor-K-Type-1M-p-3132.html?utm_source=blog&amp;utm_medium=blog\"> product page!<\/a><\/p>\n\n\n\n<p>For more information on Thermocouple Amplifies alongside max31855 comparison, you can check out this <a href=\"https:\/\/www.seeedstudio.com\/blog\/2019\/09\/11\/thermocouple-amplifier-comparison-max31855-vs-max31850k-vs-mcp9600\/\">article<\/a>!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A thermocouple is a device known for temperature measurement and consists of various sensor 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