{"product_id":"accumac-am1850-100-sprt-100-ohm-200-to-500-c","title":"AccuMac AM1850-100 SPRT, 100 Ω, -200 to 500 °C","description":"\u003ch2\u003eAccuMac AM1850-100 SPRT\u003c\/h2\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThe AccuMac AM1850-100 is a standard platinum resistance thermometer (SPRT) designed to interpolate temperature on the ITS-90 scale from -200 to 500 °C. It is widely used as the reference thermometer in secondary laboratories and as the standards probe for dry-well calibrators and stirred temperature baths.\u003c\/p\u003e\u003cp\u003eThe 480 mm probe uses an Inconel 600 sheath instead of quartz glass for better durability, with a special capsule that protects the platinum sensing wire from metal-sheath contamination at high temperature. All parts are cleaned and heat treated before assembly and the fill gas is controlled to minimize oxidation, keeping drift below 0.008 °C per year in typical use.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eTemperature range -200 to 500 °C\u003c\/li\u003e\n\u003cli\u003e100 Ω nominal resistance\u003c\/li\u003e\n\u003cli\u003eFully meets ITS-90 criteria for standard thermometers\u003c\/li\u003e\n\u003cli\u003eRepeatability better than 0.0015 °C\u003c\/li\u003e\n\u003cli\u003eLow drift: less than 0.002 °C at TPW after 100 hours at 500 °C\u003c\/li\u003e\n\u003cli\u003eInconel 600 sheath, 6.35 mm OD x 480 mm long\u003c\/li\u003e\n\u003cli\u003eISO\/IEC 17025 accredited calibration included, gold-plated spade terminations and wooden carrying case\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReference thermometer for dry-well block calibrators\u003c\/li\u003e\n\u003cli\u003eStandards probe for stirred temperature calibration baths\u003c\/li\u003e\n\u003cli\u003eITS-90 interpolation in secondary calibration laboratories\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAccuMac AM1850-100 SPRT Technical Specifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eStandard platinum resistance thermometer (SPRT)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e-200 to 500 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal resistance\u003c\/td\u003e\n\u003ctd\u003e100 Ω (RTP\/R0 = 100)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRepeatability\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.0015 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrift at TPW\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;0.002 °C after 100 hours at 500 °C; \u0026lt;0.008 °C\/year typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSheath material\u003c\/td\u003e\n\u003ctd\u003eInconel 600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSheath dimensions\u003c\/td\u003e\n\u003ctd\u003e6.35 mm OD x 480 mm length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor length\u003c\/td\u003e\n\u003ctd\u003e42 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration\u003c\/td\u003e\n\u003ctd\u003eISO\/IEC 17025 accredited calibration included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminations\u003c\/td\u003e\n\u003ctd\u003eGold-plated spade lugs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarrying case\u003c\/td\u003e\n\u003ctd\u003e9002 wooden case included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003eManufacturer information: \u003ca href=\"https:\/\/accumac.com\/\" target=\"_blank\" rel=\"noopener\"\u003eAccuMac AM1850 series on accumac.com\u003c\/a\u003e\u003c\/p\u003e","brand":"AccuMac","offers":[{"title":"Default Title","offer_id":67776289112251,"sku":"IMM_78419717","price":1427.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0777\/2635\/1547\/files\/accumac-am1850-100.jpg?v=1792552564","url":"https:\/\/na.indomultimeter.net\/products\/accumac-am1850-100-sprt-100-ohm-200-to-500-c","provider":"Indo Multimeter","version":"1.0","type":"link"}