{"id":1909,"date":"2023-08-01T14:26:40","date_gmt":"2023-08-01T14:26:40","guid":{"rendered":"https:\/\/calibration.consulting\/product\/isotech-thermocouple-standards-platinum-palladium\/"},"modified":"2026-01-14T10:38:24","modified_gmt":"2026-01-14T10:38:24","slug":"isotech-thermocouple-standards-platinum-palladium","status":"publish","type":"product","link":"https:\/\/calibration.consulting\/en\/product\/isotech-thermocouple-standards-platinum-palladium\/","title":{"rendered":"Isotech Thermocouple Standards Platinum\/Palladium"},"content":{"rendered":"<p><!--StartFragment --><\/p>\n<p>The Platinum\u2011Palladium (Pt\u2011Pd) thermocouple is one of the most accurate and stable high\u2011temperature thermocouples available. Made from ultra\u2011pure noble metals, it provides exceptional long\u2011term stability and reproducibility, making it a preferred reference sensor for laboratories operating under ITS\u201190 and other international metrology standards.<\/p>\n<h3>Designed for high temperatures and long\u2011term stability<\/h3>\n<p>Pt\u2011Pd thermocouples excel in temperature ranges where conventional thermocouples (such as Types R, S or B) begin to show drift or instability. The combination of platinum and palladium produces a highly linear and repeatable EMF response, even at temperatures above 1000 \u00b0C.<\/p>\n<p>Both metals offer excellent oxidation resistance and extremely high melting points, ensuring stable performance during extended high\u2011temperature operation.<\/p>\n<h3>Ideal for fixed\u2011point realization and comparison calibration<\/h3>\n<p>The Platinum\u2011Palladium thermocouple is commonly used with:<\/p>\n<ul>\n<li>&gt; Aluminium fixed\u2011point cells (660.323 \u00b0C)<\/li>\n<li>&gt; Silver fixed\u2011point cells (961.78 \u00b0C)<\/li>\n<li>&gt; Gold fixed\u2011point cells (1064.18 \u00b0C)<\/li>\n<li>&gt; Copper fixed\u2011point cells (1084.62 \u00b0C)<\/li>\n<\/ul>\n<p>Its low drift and excellent reproducibility make it ideal for monitoring melt and freeze plateaus, as well as for comparison calibrations in furnaces such as the Isotech Oberon, Medusa 511, or other high\u2011temperature systems.<\/p>\n<h3>Construction and materials<\/h3>\n<p>A Pt\u2011Pd thermocouple typically consists of:<\/p>\n<ul>\n<li>&gt; positive leg: high\u2011purity platinum<\/li>\n<li>&gt; negative leg: high\u2011purity palladium<\/li>\n<li>&gt; insulation: alumina (Al\u2082O\u2083) for high\u2011temperature stability<\/li>\n<li>&gt; sheath: quartz, alumina or metal depending on the application<\/li>\n<\/ul>\n<p>This construction minimizes contamination, diffusion and drift \u2014 essential for metrological accuracy.<\/p>\n<h3>Applications<\/h3>\n<p>The Platinum\u2011Palladium thermocouple is used in:<\/p>\n<ul>\n<li>&gt; primary and secondary metrology laboratories<\/li>\n<li>&gt; ITS\u201190 fixed\u2011point realization<\/li>\n<li>&gt; high\u2011temperature comparison calibration<\/li>\n<li>&gt; materials research at elevated temperatures<\/li>\n<li>&gt; monitoring of blackbody cells<\/li>\n<\/ul>\n<p>It is one of the few thermocouples capable of delivering long\u2011term, reproducible measurements above 1000 \u00b0C.<\/p>\n<p>The Platinum\u2011Palladium thermocouple offers an exceptional combination of stability, reproducibility and high\u2011temperature capability. For laboratories requiring absolute accuracy at temperatures exceeding 1100 \u00b0C, it is an indispensable tool in high\u2011temperature metrology.<\/p>\n<p><!--EndFragment --><\/p>\n","protected":false},"excerpt":{"rendered":"<ul>\n<li>Superior stability to Platinum \/ Platinum Rhodium<\/li>\n<li>Very Low Uncertainties<\/li>\n<li>Temperature Range 0 to 1500\u00b0C<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":1438,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"Isotech Thermocouple Standards Platinum\/Palladium","_seopress_titles_desc":"The Isotech Thermocouple Standards Platinum\/Palladium (Pt\/Pd) are manufactured by the National Physical Laboratory (NPL), which developed a new","_seopress_robots_index":""},"product_brand":[],"product_cat":[249,263,270],"product_tag":[],"class_list":["post-1909","product","type-product","status-publish","has-post-thumbnail","product_cat-calibration-en","product_cat-temperature-calibration","product_cat-temperatuur-sensoren","first","instock","shipping-taxable","product-type-simple"],"acf":[],"_links":{"self":[{"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product\/1909","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/comments?post=1909"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/media\/1438"}],"wp:attachment":[{"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/media?parent=1909"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product_brand?post=1909"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product_cat?post=1909"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/calibration.consulting\/en\/wp-json\/wp\/v2\/product_tag?post=1909"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}