{"title":"Resistance Temperature Detectors \/ RTD's","description":"","products":[{"product_id":"rtd-assembly-with-aluminum-screw-cover-head","title":"Spring Loaded RTD Assembly with Aluminum Screw Cover Head for Thermowells","description":"\u003ch1\u003eResistance temperature detectors (RTDs) accurately sense process temperatures with a high degree of repeatability and interchangeability of elements. \u003c\/h1\u003e\n\u003cp\u003eResistance Temperature Detectors (aka: resistance thermometers), are composed of certain metallic elements whose change in resistance is a function of temperature. In operation, a small excitation current is passed across the element, and the voltage, which is proportional to resistance, is then measured and converted to units of temperature calibration. The RTD measurement element is manufactured by winding a wire (wire wound elements) or plating a film (thin film elements) on a ceramic or glass core and sealing the element within a ceramic or glass capsule.\u003c\/p\u003e\n\u003cp\u003eSince most resistance temperature detectors and resistance thermometers have a low initial resistance, often 100 ohms, and have a small change in resistance per unit of temperature range, the resistance of the lead wire is often compensated for with a three or four wire bridge configuration built into the measuring devices. By selecting the proper elements and protective sheathing, RTDs can operate in a temperature range of (-200 to 600) °C [-328 to 1112] °F.\u003c\/p\u003e\n\u003cp\u003ePyromation manufactures resistance temperature detectors and resistance thermometers for many industry applications. From single- or dual-element RTDs, PT100s-PT1000s, to Sanitary CIP configurations, we have the right RTD type for your job. If what you need is not available from our catalog, our product engineers will design an RTD measurement device for your specific application, including temperature sensor assemblies that require connection heads, thermowells and\/or transmitters.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff2a00;\"\u003eAll \u003c\/span\u003e\u003cspan style=\"caret-color: rgb(255, 42, 0); color: rgb(255, 42, 0);\"\u003ePyromation\u003c\/span\u003e\u003cspan style=\"color: #ff2a00;\"\u003e products are built to order and typically ship 2-4 business days after we \u003cspan style=\"caret-color: rgb(255, 42, 0);\"\u003ereceive \u003c\/span\u003eyour order.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eIf you have a specific requirement or need a thermocouple you don't see listed just \u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/pages\/contact-us\" target=\"_blank\"\u003esend us a note\u003c\/a\u003e and we'll get you a quote.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable class=\"MsoNormalTable\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"95%\" style=\"height: 187px; width: 95%;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35px;\"\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 333.53125px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003ePart Number\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 756.390625px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eDescription\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 135.21875px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eTemperature Range\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 137.875px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eProcess Connection\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 115.984375px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eConduit Opening\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35px;\"\u003e\n\u003ctd valign=\"top\" style=\"height: 35px; width: 333.53125px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eR1T185L483-004-SC-8HN31,T31-385U-S(0-400)F\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 756.390625px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eRTD, 100 Ohm, 1\/4\" OD Sheath, 4\" Long, Spring Loaded, 1\/2\"NPT SS Hex Fitting, Aluminum Head, 4-20mA (0-400F)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 135.21875px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e-200 to 200C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 137.875px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e1\/2\"NPT-316SS\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 115.984375px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e3\/4\"NPT\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35px;\"\u003e\n\u003ctd valign=\"top\" style=\"height: 35px; width: 333.53125px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eR1T185L483-006-SC-8HN31,T31-385U-S(0-400)F\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 756.390625px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eRTD, 100 Ohm, 1\/4\" OD Sheath, 6\" Long, Spring Loaded, 1\/2\"NPT SS Hex Fitting, Aluminum Head, 4-20mA (0-400F)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 135.21875px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e-200 to 200C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 137.875px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e1\/2\"NPT-316SS\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 115.984375px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e3\/4\"NPT\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35px;\"\u003e\n\u003ctd valign=\"top\" style=\"height: 35px; width: 333.53125px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eR1T185L483-009-SC-8HN31,T31-385U-S(0-400)F\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 756.390625px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eRTD, 100 Ohm, 1\/4\" OD Sheath, 9\" Long, Spring Loaded, 1\/2\"NPT SS Hex Fitting, Aluminum Head, 4-20mA (0-400F)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 135.21875px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e-200 to 200C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 137.875px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e1\/2\"NPT-316SS\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 115.984375px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e3\/4\"NPT\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35px;\"\u003e\n\u003ctd valign=\"top\" style=\"height: 35px; width: 333.53125px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eR1T185L483-012-SC-8HN31,T31-385U-S(0-400)F\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 756.390625px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eRTD, 100 Ohm, 1\/4\" OD Sheath, 12\" Long, Spring Loaded, 1\/2\"NPT SS Hex Fitting, Aluminum Head, 4-20mA (0-400F)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 135.21875px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e-200 to 200C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 137.875px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e1\/2\"NPT-316SS\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"bottom\" style=\"height: 35px; width: 115.984375px;\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e3\/4\"NPT\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003ca rel=\"noopener\" title=\"RTD Tolerances\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/RTD_Tolerances.pdf\" target=\"_blank\"\u003e\u003cimg style=\"margin-right: 16px; margin-bottom: 16px; float: left;\" alt=\"Thermocouple Temperature Limits and Color Codes\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63.png?v=1613706188\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" title=\"Thermocouple Temperature Limits and Color Codes\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/Thermocouple_Temperature_Limits_and_Color_Codes.pdf\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"RTD Tolerances\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/RTD_Tolerances.pdf\" target=\"_blank\"\u003eRTD Tolerances\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eVideos\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/RQwKHbU_JqY?si=Zi5PiGzvdov4Md5G\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Pyromation","offers":[{"title":"RTD, 100 Ohm, 1\/4\" OD Sheath, 4\" Long, Spring Loaded, 1\/2\"NPT SS Hex Fitting, Aluminum Head, 4-20mA (0-400F)","offer_id":51789526466744,"sku":"R1T185L483-004-SC-8HN31 \/ T31-385U-S(0-400)F","price":373.8,"currency_code":"USD","in_stock":true},{"title":"RTD, 100 Ohm, 1\/4\" OD Sheath, 6\" Long, Spring Loaded, 1\/2\"NPT SS Hex Fitting, Aluminum Head, 4-20mA (0-400F)","offer_id":51789528039608,"sku":"R1T185L483-006-SC-8HN31 \/ T31-385U-S(0-400)F","price":373.8,"currency_code":"USD","in_stock":true},{"title":"RTD, 100 Ohm, 1\/4\" OD Sheath, 9\" Long, Spring Loaded, 1\/2\"NPT SS Hex Fitting, Aluminum Head, 4-20mA (0-400F)","offer_id":51789528072376,"sku":"R1T185L483-009-SC-8HN31 \/ T31-385U-S(0-400)F","price":373.8,"currency_code":"USD","in_stock":true},{"title":"RTD, 100 Ohm, 1\/4\" OD Sheath, 12\" Long, Spring Loaded, 1\/2\"NPT SS Hex Fitting, Aluminum Head, 4-20mA (0-400F)","offer_id":51789528105144,"sku":"R1T185L483-012-SC-8HN31 \/ T31-385U-S(0-400)F","price":373.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0532\/3735\/0584\/files\/Alum-Heads.jpg?v=1760382236"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0532\/3735\/0584\/collections\/XP-Web-Flash_02-lo-res-1-1024x767_df9c0c4f-b6b3-495a-b81e-41e357c35877.jpg?v=1757702071","url":"https:\/\/sperscientific.com\/collections\/resistance-temperature-detectors-rtd.oembed","provider":"Sper Scientific Instruments","version":"1.0","type":"link"}