{"product_id":"pr1231pr1232-standard-platinum-10-rhodiumplatium-thermocouple","title":"PR1231\/PR1232 Standard Platinum-10% Rhodium\/Platium Thermocouple","description":"\u003cdiv class=\"fl-builder-content fl-builder-content-5149 fl-builder-content-primary fl-builder-global-templates-locked\" data-post-id=\"5149\"\u003e\u003cdiv class=\"fl-row fl-row-full-width fl-row-bg-none fl-node-6445062b8dcc9\" data-node=\"6445062b8dcc9\"\u003e\u003cdiv class=\"fl-row-content-wrap\"\u003e\u003cdiv class=\"fl-row-content fl-row-full-width fl-node-content\"\u003e\n\u003cdiv class=\"fl-col-group fl-node-644506351f1af\" data-node=\"644506351f1af\"\u003e\u003cdiv class=\"fl-col fl-node-644506351f367\" data-node=\"644506351f367\" style=\"width: 100%;\"\u003e\u003cdiv class=\"fl-col-content fl-node-content\"\u003e\u003cdiv class=\"fl-module fl-module-heading fl-node-644506351f068\" data-node=\"644506351f068\" data-animation-delay=\"0.0\"\u003e\u003cdiv class=\"fl-module-content fl-node-content\"\u003e\u003ch1 class=\"fl-heading\"\u003e\u003cspan class=\"fl-heading-text\"\u003ePR1231\/PR1232 Standard Platinum-10% Rhodium\/Platium Thermocouple\u003c\/span\u003e\u003c\/h1\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"fl-col-group fl-node-6445062b8dd08\" data-node=\"6445062b8dd08\"\u003e\u003cdiv class=\"fl-col fl-node-6445062b8dd46\" data-node=\"6445062b8dd46\" style=\"width: 100%;\"\u003e\u003cdiv class=\"fl-col-content fl-node-content\"\u003e\n\u003cdiv class=\"fl-module fl-module-rich-text fl-node-6445062b8ddc0\" data-node=\"6445062b8ddc0\" data-animation-delay=\"0.0\"\u003e\u003cdiv class=\"fl-module-content fl-node-content\"\u003e\u003cdiv class=\"fl-rich-text\"\u003e\n\u003cp\u003e\u003cspan style=\"color: #333300;\"\u003e\u003cstrong\u003ePart1 Overview\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe first and second grade standard platinum-iridium 10-platinum thermocouples which have high accuracy good physical and chemical properties, good oxidation resistance at high temperatures,  good stability and reproducibility of thermoelectromotive force. Therefore, it is used as a standard measuring instrument in (419.527~1084.62) °C , it is also used to temperature magnitude transmit  and precision temperature measure in the temperature range.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv class=\"fl-module fl-module-rich-text fl-node-64450659e42d5\" data-node=\"64450659e42d5\" data-animation-delay=\"0.0\"\u003e\u003cdiv class=\"fl-module-content fl-node-content\"\u003e\u003cdiv class=\"fl-rich-text\"\u003e\n\u003cp\u003e\u003cspan style=\"color: #333300;\"\u003e\u003cstrong\u003e\u003ca\u003e\u003cspan style=\"color: #333300;\"\u003ePart2 Technical parameters\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003ctable style=\"width: 529px;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"189\"\u003eParameter   index\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"170\"\u003eFirst   grade platinum-iridium 10-platinum thermocouples\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"170\"\u003eSecond   grade platinum-iridium 10-platinum thermocouples\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"189\"\u003ePositive   and negative\u003c\/td\u003e\n\u003ctd colspan=\"2\" valign=\"top\" width=\"225\"\u003eThe   positive is a platinum-rhodium alloy (platinum 90% rhodium 10%), the negative   is pure platinum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"189\"\u003eelectrode\u003c\/td\u003e\n\u003ctd colspan=\"2\" valign=\"top\" width=\"225\"\u003eTwo   electrodes diameter is 0.5\u003csup\u003e-0.015\u003c\/sup\u003emm length   is no less than 1000mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"189\"\u003eRequirements   of the thermal electromotive forceMeasure   junction temperature is at Cu point(1084.62℃）Al point(660.323℃)Zn   point(419.527℃) and reference junction temperature is 0℃\u003c\/td\u003e\n\u003ctd colspan=\"2\" valign=\"top\" width=\"225\"\u003eE(t\u003csub\u003eCu\u003c\/sub\u003e)=10.575±0.015mVE(t\u003csub\u003eAl\u003c\/sub\u003e)=5.860+0.37 [E(t\u003csub\u003eCu\u003c\/sub\u003e)－10.575]±0.005mVE(t\u003csub\u003eZn\u003c\/sub\u003e)=3.447+0.18 [E(t\u003csub\u003eCu\u003c\/sub\u003e)－10.575]±0.005mV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"189\"\u003eStability   of Thermo-electromotive force\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"170\"\u003e3μV\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"170\"\u003e5μV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"189\"\u003eAnnual   change Thermo-electromotive force at Cu point(1084.62℃）\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"170\"\u003e≦5μV\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"170\"\u003e≦10μV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"189\"\u003eWorking   Temperature Range\u003c\/td\u003e\n\u003ctd colspan=\"2\" valign=\"top\" width=\"225\"\u003e300~1100℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"189\"\u003eInsulating   sleeve\u003c\/td\u003e\n\u003ctd colspan=\"2\" valign=\"top\" width=\"225\"\u003eDouble   hole porcelain tube or corundum tubeOuter   diameter(3~4)mm, hole diameter(0.8~1.0)mm, length(500~550)mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #333300;\"\u003e\u003cstrong\u003e\u003ca\u003e\u003cspan style=\"color: #333300;\"\u003ePart3\u003c\/span\u003e\u003c\/a\u003e\u003ca\u003e\u003cspan style=\"color: #333300;\"\u003eApplication Instructions\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003estandard platinum-iridium 10-platinum thermocouples must be in accordance with the national delivery system table,National verification procedures must be implemented. First grade standard platinum-iridium 10-platinum thermocouples can be used to measure second grade,Ⅰ grade,Ⅱ grade platinum-iridium 10-platinum thermocouples and Ⅰ grade base metal thermocouples; Second grade platinum-iridium 10-platinum thermocouples can only used to measure Ⅱ grade base metal thermocouples\u003c\/p\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"211\"\u003eNational verification code\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"211\"\u003eNational verification name\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"211\"\u003eJJG75-1995\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"211\"\u003estandard platinum-iridium   10-platinum thermocouples calibration specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"211\"\u003eJJG141-2013\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"211\"\u003eWorking precious metal   thermocouples calibration specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\" width=\"211\"\u003eJJF1637-2017\u003c\/td\u003e\n\u003ctd valign=\"top\" width=\"211\"\u003ebase metal thermocouple   calibration specification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"color: #333300;\"\u003e\u003cstrong\u003e\u003ca\u003e\u003cspan style=\"color: #333300;\"\u003ePart4 Maintenance and preservation\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e1. The standard thermocouple calibration period is 1 year, and every year the standard thermocouple must be calibrated by metrology department.\u003c\/p\u003e\n\u003cp\u003e2. The necessary supervisory calibration should be performed according to the usage.\u003c\/p\u003e\n\u003cp\u003e3. The work environment of the standard thermocouple should be clean to avoid contamination of the standard thermocouple.\u003c\/p\u003e\n\u003cp\u003e4. The standard thermocouple should be placed in a non-polluting condition and protected from mechanical stress.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #333300;\"\u003e\u003cstrong\u003e\u003ca\u003e\u003cspan style=\"color: #333300;\"\u003ePart5 Precautions when use\u003c\/span\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e1. The insulation tube cannot be used at high temperature roasting. The original insulation tube is used after strict cleaning and high temperature roasting.\u003c\/p\u003e\n\u003cp\u003e2. The insulation tube ignores positive and negative, which will cause the platinum pole to be contaminated and the thermoelectric potential value to decrease.\u003c\/p\u003e\n\u003cp\u003e3. Randomly the standard thermocouple insulation tube with cheap wire will contaminate the standard thermocouple, and the protective metal tube must be used for the verification of the base metal thermocouple.\u003c\/p\u003e\n\u003cp\u003e4. The standard thermocouple cannot be suddenly placed in the temperature-regulating furnace, nor be taken out from the temperature-regulating furnace. The sudden-heat and cold will affect the thermoelectric performance\u003c\/p\u003e\n\u003cp\u003e5.Under normal circumstances, the verification furnace for the precious metal thermocouple and the base metal thermocouple should be strictly distinguished; if it is impossible, the clean ceramic tube or corundum tube(diameter about 15mm) should be inserted to the furnace tube for protecting precious metal Thermocouples and standard thermocouples from base metal thermocouple pollution.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c!----\u003e\u003cdiv class=\"clear\"\u003e\u003c\/div\u003e","brand":"Warehouse","offers":[{"title":"Default Title","offer_id":53792151109816,"sku":null,"price":0.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0969\/7224\/3128\/files\/5dd4e9f111fb11.jpg?v=1784607269","url":"https:\/\/temptechsupply.com.au\/products\/pr1231pr1232-standard-platinum-10-rhodiumplatium-thermocouple","provider":"TechTemp Supply","version":"1.0","type":"link"}