{"title":"Reference Probe \u0026 SPRT","description":"\u003cp\u003eSecondary reference PRTs, thermistor standards, thermocouple standards and SPRTs.\u003c\/p\u003e","products":[{"product_id":"5606-full-immersion-prt","title":"5606 Full Immersion PRT","description":"\u003cp\u003eThe Fluke Calibration 5606 immersion PRT probe offers excellent accuracy and stability for temperature measurement from -200°C to 160°C.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003ch3\u003e\u003cem\u003eUltra-Compact, Reliable, and Designed for Complete Immersion\u003c\/em\u003e\u003c\/h3\u003e\u003ch3\u003eTotal Flexibility for Extreme Environments\u003c\/h3\u003e\u003cp\u003eThe Fluke 5606 Full Immersion Platinum Resistance Thermometer (PRT) offers an unmatched solution for applications where full immersion of the probe—including transition junction and lead wires—is required. With a compact length of just two inches (50 mm) and a sheath diameter of only 1\/8 inch (3.1 mm), the 5606 delivers accuracy and durability in the tightest spaces.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTruly Full Immersion\u003c\/strong\u003e – No need to calculate minimum immersion depth. Simply immerse the entire probe, transition junction, and lead wires over the entire operating range—from –200 °C to 160 °C—in either non-corrosive liquids or dry mediums.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Accuracy in a Compact Size\u003c\/strong\u003e – Achieve calibration accuracies as good as ±0.05 °C, thanks to the specially constructed 100 Ω precision sensing element (alpha = 0.00385) that also blocks moisture ingress.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Moisture Protection\u003c\/strong\u003e – Single-conductor enameled copper lead wires prevent moisture from wicking into the sensing element, offering better protection than traditional stranded leads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible and Easy Installation\u003c\/strong\u003e – Lead wires measure no greater than 0.2 mm in diameter, making it simple to route through tight spaces—such as a freezer door—without energy loss.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven Durability\u003c\/strong\u003e – The 5606 has demonstrated excellent performance in heat transfer fluids like silicone oil, mineral oil, ethanol, and even liquid nitrogen, with no loss of integrity in the transition junction or lead wire insulation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eEngineered for Demanding Applications\u003c\/h3\u003e\u003cp\u003eThe 5606 Full Immersion PRT is specifically designed to thrive in extreme environments. Both the transition junction and lead wires are built to endure temperatures covering the full probe range, ensuring complete reliability in challenging conditions.\u003c\/p\u003e\u003cp\u003e“\u003cem\u003eImmersion\u003c\/em\u003e” means exposure to extreme temperatures—not just being submerged in a liquid—making the 5606 ideal for a wide variety of rigorous uses.\u003c\/p\u003e\u003cdiv\u003eModels\u003cul\u003e\u003cli\u003e5606-50-X\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e“X” in a model number denotes the probe termination (e.g. A = INFO-CON for 914X, B = bare wire, D = 5-pin DIN, G = gold pins, J = banana plugs, L = mini spade lugs, M = mini banana plugs, P = INFO-CON for 1523\/1524, S = spade lugs). Please specify when enquiring.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications: 5606 Full Immersion PRT\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"3\"\u003eGeneral Specifications\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e-200°C to 160°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal resistance at 0.01°C\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e100 Ω ±0.1 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature coefficient\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e0.00385 Ω\/Ω\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003csup\u003e1\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e±0.04°C at 0.01°C\u003cbr\u003e±0.06°C at 160°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShort-term repeatability\u003csup\u003e2\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e±0.03°C at 0.01°C\u003cbr\u003e±0.04°C at 160°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrift\u003csup\u003e3\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e±0.03°C at 0.01°C\u003cbr\u003e±0.04°C at 160°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHysteresis\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e±0.015°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSheath length\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e50 mm ±5 mm\u003cbr\u003e(2 in ±0.2 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSheath diameter\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e3.1 mm ±0.1 mm (1\/8 in ±0.004 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSheath material\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e316 SST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransition junction temperature range\u003csup\u003e4\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e-200°C to 160°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransition junction dimensions\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eNo transition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor length\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e30 mm ±3mm (1.2 in ±0.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensor location\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e3 mm ±1 mm from tip (1.2 in ±0.04 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum insulation resistance\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e20 MΩ at 23°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum immersion length\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eFull immersion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum immersion depth in liquid medium\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eFull immersion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum immersion depth in dry Medium\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eFull immersion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse time\u003csup\u003e5\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e12 seconds typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelf heating (in 0°C bath)\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e±0.003°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead-wire cable type\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eEnameled copper wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead-wire length\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e2.4 meters (8 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead-wire temperature range\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e160°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibration\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eCalibration not included. NVLAP accredited calibration available. See ordering information.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e1. Includes calibration and 100 hr drift (k = 2).\u003cbr\u003e2. Three thermal cycles from min to max temp, includes hysteresis, 95% confidence (k = 2).\u003cbr\u003e3. After 100 hours at max temp, 95% confidence (k = 2).\u003cbr\u003e4. Temperatures outside this range will cause irreparable damage.\u003cbr\u003e5. Per ASTM E 644.\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"3\"\u003eCalibration Uncertainty\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature\u003c\/td\u003e\n\u003ctd\u003e-197°C\u003c\/td\u003e\n\u003ctd\u003e1924 Calibration Uncertainty\u003csup\u003e6\u003c\/sup\u003e 0.03°C\u003cbr\u003eTolerance w\/out Calibration\u003csup\u003e7\u003c\/sup\u003e 0.4°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e-38°C\u003c\/td\u003e\n\u003ctd\u003e1924 Calibration Uncertainty\u003csup\u003e6\u003c\/sup\u003e 0.03°C\u003cbr\u003eTolerance w\/out Calibration\u003csup\u003e7\u003c\/sup\u003e 0.2°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0°C\u003c\/td\u003e\n\u003ctd\u003e1924 Calibration Uncertainty\u003csup\u003e6\u003c\/sup\u003e 0.03°C\u003cbr\u003eTolerance w\/out Calibration\u003csup\u003e7\u003c\/sup\u003e 0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100°C\u003c\/td\u003e\n\u003ctd\u003e1924 Calibration Uncertainty\u003csup\u003e6\u003c\/sup\u003e 0.045°C\u003cbr\u003eTolerance w\/out Calibration\u003csup\u003e7\u003c\/sup\u003e 0.3°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e157°C\u003c\/td\u003e\n\u003ctd\u003e1924 Calibration Uncertainty\u003csup\u003e6\u003c\/sup\u003e 0.05°C\u003cbr\u003eTolerance w\/out Calibration\u003csup\u003e7\u003c\/sup\u003e 0.4°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003e6. Lab code 200348-0\u003cbr\u003e7. Each PRT includes a certificate with a measured R0 value.\u003cbr\u003eAn uncalibrated 5606 meets ASTM E 1137 Grade A Classification of Tolerances.\u003cbr\u003eUse the coefficients below to achieve the tolerances listed in the “No Calibration” column or calculate the Grade A tolerance using the following formula:\u003cbr\u003eGrade A = ±[0.13 + 0.0017|t|]°C\u003cbr\u003ewhere: |t| = value of temperature (°C) without regard to sign. See ASTM E 1137.\u003cbr\u003eR0: Enter the R0 value provided\u003cbr\u003eA: 3.9083 x 10\u003csup\u003e–3\u003c\/sup\u003e\u003cbr\u003eB: –5.775 x 10\u003csup\u003e–7\u003c\/sup\u003e\u003cbr\u003eC: –4.183 x 10\u003csup\u003e–12\u003c\/sup\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv role=\"tabpanel\" aria-labelledby=\"models-label\" class=\"tab-pane\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluke","offers":[{"title":"5606-50-X","offer_id":54038943990054,"sku":"5606-50-X","price":0.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/9797\/0214\/files\/27c072a8-8635-4ea7-a6b6-b29f011f17b2_original__size.jpg?v=1791380958"},{"product_id":"5608-5609-secondary-reference-prt","title":"5608\/5609 Secondary Reference PRT","description":"\u003cp\u003eFluke Calibration 5608\/5609 PRT probes are secondary reference standards for precise and stable temperature measurements.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe 5608 comes with a one-eighth inch (3.18 mm) diameter sheath in lengths of 9 inches or 12 inches. The 5609 comes with a one-quarter inch (6.35 mm) diameter sheath in lengths of 12 inches, 15 inches, and 20 inches; or with a 6 mm diameter in lengths of 300 mm, 400 mm, or 500 mm.\u003c\/p\u003e\u003cp\u003eWhen looking for improved response time and reduced stem effect in shallow immersion, look for small diameter probes, because the measurement error called stem effect is caused by the diameter of the stem rather than the length of the stem.\u003c\/p\u003e\u003cp\u003eBoth of these probes have Inconel™ sheaths and are made using a special manufacturing process, giving them great precision over a wide temperature range. The sensors for these probes are reference-grade platinum and feature four-wire connections with less noisy measurements than two-wire counterparts.\u003c\/p\u003e\u003cp\u003eAs standard, each probe includes its resistance value at the triple point of water. If calibration is desired, you can order an accredited calibration from our laboratory; lab code 200348-0. On the report of calibration, you’ll get the test data and the ITS90 calibration coefficients that you can easily input into any Fluke Calibration thermometer. If you order your probe with an smart connector, we’ll program the coefficients directly into your connector, which loads the coefficients for you when you plug it into our 1524 Handheld Thermometer.\u003c\/p\u003e\u003cdiv\u003eModels\u003cul\u003e\n\u003cli\u003e5608-9-X\u003c\/li\u003e\n\u003cli\u003e5608-12-X\u003c\/li\u003e\n\u003cli\u003e5609-12-X\u003c\/li\u003e\n\u003cli\u003e5609-20-X\u003c\/li\u003e\n\u003cli\u003e5609-300-X\u003c\/li\u003e\n\u003cli\u003e5609-400-X\u003c\/li\u003e\n\u003cli\u003e5609-500-X\u003c\/li\u003e\n\u003cli\u003e5609-9BND-X\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e“X” in a model number denotes the probe termination (e.g. A = INFO-CON for 914X, B = bare wire, D = 5-pin DIN, G = gold pins, J = banana plugs, L = mini spade lugs, M = mini banana plugs, P = INFO-CON for 1523\/1524, S = spade lugs). Please specify when enquiring.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications: Secondary PRT with Calibration Options - 5608 and 5609\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eTemperature range\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5608:\u003c\/strong\u003e –200 °C to 500 °C\u003cbr\u003e\u003cstrong\u003e5609:\u003c\/strong\u003e –200 °C to 670 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal resistance at 0.01 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 Ω ± 0.5 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0039250 Ω\/Ω\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eRelative Accuracy\u003csup\u003e[1]\u003c\/sup\u003e\u003c\/strong\u003e\u003cbr\u003e \u003cbr\u003e \u003cbr\u003e \u003c\/td\u003e\n\u003ctd\u003e± 0.007 °C at –200 °C\u003cbr\u003e± 0.008 °C at 0 °C\u003cbr\u003e± 0.020 °C at 420 °C\u003cbr\u003e± 0.027 °C at 660 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eShort-term repeatability\u003csup\u003e[2]\u003c\/sup\u003e\u003c\/strong\u003e\u003cbr\u003e \u003c\/td\u003e\n\u003ctd\u003e± 0.007 °C at 0.010 °C\u003cbr\u003e± 0.013 °C at max temp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDrift\u003csup\u003e[3]\u003c\/sup\u003e\u003c\/strong\u003e\u003cbr\u003e \u003c\/td\u003e\n\u003ctd\u003e± 0.01 °C at 0.010 °C\u003cbr\u003e± 0.02 °C at max temp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHysteresis\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.01 °C maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 mm ± 5 mm (1.2 in ± 0.2 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 mm ± 1 mm from tip (0.1 in ± 0.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSheath material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInconel™ 600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eMinimum insulation resistance\u003c\/strong\u003e\u003cbr\u003e \u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5608:\u003c\/strong\u003e 500 MΩ at 23 °C, 20 MΩ at 500 °C\u003cbr\u003e\u003cstrong\u003e5609:\u003c\/strong\u003e 500 MΩ at 23 °C, 10 MΩ at 670 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransition junction temperature range\u003csup\u003e[4]\u003c\/sup\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e–50 ºC to 200 °C\u003cbr\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransition junction dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e71 mm x 12.5 mm (2.8 in x 0.49 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eMinimum immersion length\u003csup\u003e[5]\u003c\/sup\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e(\u0026lt;5\u0026gt;\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5608:\u003c\/strong\u003e 80 mm (3.1 in)\u003cbr\u003e\u003cstrong\u003e5609:\u003c\/strong\u003e 100 mm (3.9 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum immersion length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e305 mm (12 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eResponse time\u003csup\u003e[5]\u003c\/sup\u003e\u003c\/strong\u003e\u003cbr\u003e \u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5608:\u003c\/strong\u003e 9 seconds typical\u003cbr\u003e\u003cstrong\u003e5609:\u003c\/strong\u003e 12 seconds typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eSelf heating (in 0 °C bath)\u003c\/strong\u003e\u003cbr\u003e \u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5608:\u003c\/strong\u003e 75 mW\/°C\u003cbr\u003e\u003cstrong\u003e5609:\u003c\/strong\u003e 50 mW\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLead-wire cable type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePTFE 24 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLead-wire length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.8 m (6 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLead-wire temperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e–50 °C to 250 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eCalibration\u003c\/strong\u003e\u003cbr\u003e \u003cbr\u003e \u003c\/td\u003e\n\u003ctd\u003e\n\u003cbr\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003csup\u003e[1]\u003c\/sup\u003e Includes short-term repeatability and 100 hr drift. Calibration will add additional uncertainties.\u003cbr\u003e\u003cbr\u003e\u003csup\u003e[2]\u003c\/sup\u003e Three thermal cycles from min to max temp, includes hysteresis, 99.9 % confidence (k=3)\u003cbr\u003e\u003cbr\u003e\u003csup\u003e[3]\u003c\/sup\u003eAfter 100 hours at max temp, 99.9 % confidence (k=3)\u003cbr\u003e\u003cbr\u003e\u003csup\u003e[4]\u003c\/sup\u003e Temperatures outside this range will cause irreparable damage. For best performance, transition junction should not be too hot to touch.\u003cbr\u003e\u003cbr\u003e\u003csup\u003e[5]\u003c\/sup\u003e Per ASTM E 644\u003c\/td\u003e\n\u003ctd\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eCalibration Uncertainty for accredited† calibration\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eExpanded Uncertainty (k=2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e–197 °C\u003c\/td\u003e\n\u003ctd\u003e0.025 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e–80 °C\u003c\/td\u003e\n\u003ctd\u003e0.025 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e–38 °C\u003c\/td\u003e\n\u003ctd\u003e0.025 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.01 °C\u003c\/td\u003e\n\u003ctd\u003e0.025 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e156 °C\u003c\/td\u003e\n\u003ctd\u003e0.030 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e231 °C\u003c\/td\u003e\n\u003ctd\u003e0.030 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e419 °C\u003c\/td\u003e\n\u003ctd\u003e0.035 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e660 °C\u003c\/td\u003e\n\u003ctd\u003e0.050 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Calibration uncertainties depend on the uncertainties of the lab performing the calibration. Subsequent calibrations of this probe performed with different processes, at different facilities, or with changed uncertainty statements may state different uncertainties. †Lab code 200348-0\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv role=\"tabpanel\" aria-labelledby=\"models-label\" class=\"tab-pane\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluke","offers":[{"title":"5608-9-X","offer_id":54038944153894,"sku":"5608-9-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5608-12-X","offer_id":54038944252198,"sku":"5608-12-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5609-12-X","offer_id":54038944284966,"sku":"5609-12-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5609-20-X","offer_id":54038944317734,"sku":"5609-20-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5609-300-X","offer_id":54038944350502,"sku":"5609-300-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5609-400-X","offer_id":54038944383270,"sku":"5609-400-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5609-500-X","offer_id":54038944416038,"sku":"5609-500-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5609-9BND-X","offer_id":54038944448806,"sku":"5609-9BND-X","price":0.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/9797\/0214\/files\/e11fa24c-e2a1-4927-aa21-b2a40168c2f7_original__size.jpg?v=1791380978"},{"product_id":"5615-secondary-reference-prt","title":"5615 Secondary Reference PRT","description":"\u003cp\u003eFluke Calibration 5615 secondary reference PRT offers ±0.012 °C accuracy at 0 °C, Inconel sheath and NVLAP certificate—ideal for lab or field work.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe 5615-12 (formerly Hart Scientific) is a Platinum Resistance Thermometer (PRT) with an Inconel™ 600 sheath that’s 305 mm (12 in) long and 6.35 mm (0.250 in) in diameter. It is a secondary reference temperature standard designed to bridge the gap between the highest laboratory standards and industrial or second-tier lab locations. It has accuracy of ± 0.012 °C at 0.01 °C.\u003c\/p\u003e\u003cp\u003eThe element is constructed of reference-grade platinum wire (99.999 % pure) for excellent stability. The wire is wound in a coil and placed in a mandrel where it’s uniformly supported in a manner that virtually eliminates hysteresis. The electrical configuration is a four-wire current-potential hookup that eliminate the effects of lead-wire resistance.\u003c\/p\u003e\u003cp\u003eThese Inconel™-sheathed probes have a fully supported sensing element, making them more durable than SPRTs. The element is protected in an ultrahigh-purity ceramic case with a hermetic glass seal to improve output stability by locking out moisture and contaminants.\u003c\/p\u003e\u003cp\u003eThis probe comes calibrated with ITS-90 coefficients, making it compatible with many excellent readout devices, including Fluke Calibration’s 1529 Chub-E4, 1560 Black Stack, and 1502A Tweener. It bridges the gap between a 100-ohm industrial RTD and an SPRT.\u003c\/p\u003e\u003cp\u003eFor those needing faster thermal response, or where diameter and immersion depth are problems, order the 5615-9 or 5615-6. These probes are excellent reference probes for comparison calibrations in a Fluke Calibration dry-well. The sheaths of the 5615-6 and 5615-9 are 4.76 mm (0.188 in) in diameter.\u003c\/p\u003e\u003cp\u003eA printout of sensor resistance is provided in 1 °C increments for each probe. The 5615-9 and 5615-12 are calibrated from –196 °C to 420 °C. The 5615-6 is calibrated to 300 °C.\u003c\/p\u003e\u003cp\u003eWe’ve tested many of the probes on the market. We’ve used them in our manufacturing facility and tested them in the lab, and this is an excellent secondary standards PRT. Other instruments on the market are priced much higher, have lower stability, or are of lower quality.\u003c\/p\u003e\u003cp\u003eRemember, these are reliable instruments and each probe comes with its own individual accredited calibration.\u003c\/p\u003e\u003cdiv\u003eModels\u003cul\u003e\n\u003cli\u003e5615-6-X\u003c\/li\u003e\n\u003cli\u003e5615-9-X\u003c\/li\u003e\n\u003cli\u003e5615-12-X\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e“X” in a model number denotes the probe termination (e.g. A = INFO-CON for 914X, B = bare wire, D = 5-pin DIN, G = gold pins, J = banana plugs, L = mini spade lugs, M = mini banana plugs, P = INFO-CON for 1523\/1524, S = spade lugs). Please specify when enquiring.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications: 5615 Secondary Reference PRT\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eTemperature range\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e \u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e5615-12 and 5615-9: –200 °C to 420 °C\u003cbr\u003e5615-6: –200 °C to 300 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal resistance at 0 °C\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 Ω ± 0.10 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.0039250 Ω\/Ω\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eAccuracy\u003csup\u003e[1]\u003c\/sup\u003e\u003c\/strong\u003e\u003cbr\u003e \u003cbr\u003e \u003c\/td\u003e\n\u003ctd\u003e± 0.024 °C at –200 °C\u003cbr\u003e± 0.012 °C at 0 °C\u003cbr\u003e± 0.035 °C at 420 °CC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShort-term repeatability\u003csup\u003e[2]\u003c\/sup\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.009 °C at 0.010 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrift\u003csup\u003e[3]\u003c\/sup\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.007 °C at 0.010 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e28 mm (1.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.9 mm ± 3.3 mm from tip (0.27 in ± 0.13 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSheath dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5615-6:\u003c\/strong\u003e 152 mm x 4.76 mm (6.0 in x 0.188 in)\u003cbr\u003e\u003cstrong\u003e5615-9:\u003c\/strong\u003e 229 mm x 4.76 mm (9.0 in x 0.188 in)\u003cbr\u003e\u003cstrong\u003e5615-12:\u003c\/strong\u003e 305 mm x 6.35 mm (12.0 in x 0.250 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSheath diameter tolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.127 mm (± 0.005 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSheath material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInconel™ 600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum insulation resistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1000 MΩ at 23 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransition junction temperature range\u003csup\u003e[4]\u003c\/sup\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e–50 °C to 200 °C\u003cbr\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTransition junction dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e71 mm x 13 mm dia (2.8 in x 0.5 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eMaximum immersion length\u003c\/strong\u003e\u003cbr\u003e \u003cbr\u003e \u003c\/td\u003e\n\u003ctd\u003e5615-6: 102 mm (4 in)\u003cbr\u003e5615-9: 178 mm (7 in)\u003cbr\u003e5615-12: 254 mm (10 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResponse time\u003csup\u003e[5]\u003c\/sup\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9 seconds typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSelf heating (in 0 °C bath)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50 mW\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLead-wire cable type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePTFE insulated with PTFE jacket, 22 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLead-wire length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e183 cm (72 in or 6 ft)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLead-wire temperature range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e–50 °C to 200 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eCalibration\u003c\/strong\u003e\u003cbr\u003e \u003cbr\u003e \u003c\/td\u003e\n\u003ctd\u003eAccredited calibration included. Please see calibration uncertainty table and its explanation of changeable uncertainties.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003csup\u003e[1]\u003c\/sup\u003e Includes calibration and 100 hr drift (k=2)\u003cbr\u003e\u003cbr\u003e\u003csup\u003e[2]\u003c\/sup\u003e Three thermal cycles from min to max temp, includes hysteresis, 95 % confidence (k=2)\u003cbr\u003e\u003cbr\u003e\u003csup\u003e[3]\u003c\/sup\u003e After 100 hrs at max temp, 95 % confidence (k=2)\u003cbr\u003e\u003cbr\u003e\u003csup\u003e[4]\u003c\/sup\u003e Temperatures outside this range will cause irreparable damage. For best performance, transition junction should not be too hot to touch.\u003cbr\u003e\u003cbr\u003e\u003csup\u003e[5]\u003c\/sup\u003e Per ASTM E 644\u003c\/td\u003e\n\u003ctd\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eCalibration Uncertainty\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eExpanded Uncertainty (k=2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e–196 °C\u003c\/td\u003e\n\u003ctd\u003e0.024 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e–38 °C\u003c\/td\u003e\n\u003ctd\u003e0.011 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0 °C\u003c\/td\u003e\n\u003ctd\u003e0.010 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e200 °C\u003c\/td\u003e\n\u003ctd\u003e0.018 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e420 °C\u003csup\u003e‡\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.029 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003cbr\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Calibration uncertainties depend on the uncertainties of the lab performing the calibration. Subsequent calibrations of this probe performed with different processes, at different facilities, or with changed uncertainty statements may state different uncertainties. †Lab code 200706-0 ‡5615-6 excluded\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv role=\"tabpanel\" aria-labelledby=\"models-label\" class=\"tab-pane\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluke","offers":[{"title":"5615-6-X","offer_id":54038944612646,"sku":"5615-6-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5615-9-X","offer_id":54038944710950,"sku":"5615-9-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5615-12-X","offer_id":54038944743718,"sku":"5615-12-X","price":0.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/9797\/0214\/files\/36e94b2e-81a6-445f-8f3b-b2a4016d38d3_original__size.jpg?v=1791381001"},{"product_id":"5622-fast-response-prt","title":"5622 Fast Response PRT","description":"\u003cp\u003e5622 PRT from Fluke Calibration is designed for temperature measurements requiring fast response (0.4 seconds) or short immersion over a wide range.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe Fluke Calibration series of fast response PRTs includes four models with stainless steel sheaths ranging from 0.5 to 3.2 mm (0.02 to 0.125 in) in diameter. Because these high-quality wire-wound sensors come in small packages, heat transfer to the sensors occurs quickly. Time constants from 0 °C to 100 °C are as fast as 0.4 seconds.\u003c\/p\u003e\u003cp\u003eImmersion requirements for these probes is also a plus, ranging from just 10 mm to 64 mm (0.4 to 2.5 inch), depending on the model. Getting into shallow or tight places is not a problem. And because these probes can handle temperatures from –200 °C to 350 °C, they’re more versatile than most thermistors.\u003c\/p\u003e\u003cp\u003e5622 PRTs come with a Model 1923-4-N ITS-90 Comparison Calibration, which includes seven points from –197 °C to 300 °C. Short-term accuracies are achieved as good as ±0.04 °C at 0 °C.\u003c\/p\u003e\u003cp\u003eReadout options for the Model 5622 PRTs include Fluke Calibration's 1523 Handheld Thermometers, 1524 Handheld Thermometers or the 1529 Benchtop Thermometer. 5622's purchased with a 1523\/1524 will have the calibration coefficients programmed into the probe's smart connector.\u003c\/p\u003e\u003cp\u003eWhatever your thermometry requirements are, come to Fluke Calibration. No one else offers a wider range of standards-quality reference thermometers.\u003c\/p\u003e\u003cdiv\u003eModels\u003cul\u003e\n\u003cli\u003e5622-05-X\u003c\/li\u003e\n\u003cli\u003e5622-10-X\u003c\/li\u003e\n\u003cli\u003e5622-16-X\u003c\/li\u003e\n\u003cli\u003e5622-32-X\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e“X” in a model number denotes the probe termination (e.g. A = INFO-CON for 914X, B = bare wire, D = 5-pin DIN, G = gold pins, J = banana plugs, L = mini spade lugs, M = mini banana plugs, P = INFO-CON for 1523\/1524, S = spade lugs). Please specify when enquiring.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications: Fluke 5622 Thermistor Probe | Precision Temperature\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e–200 °C to 350 °C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal R\u003csub\u003eTPW\u003c\/sub\u003e \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00385 Ω \/Ω\/°C nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibrated Probe Accuracy (includes calibration uncertainty and short-term stability) \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5622-05 and 5622-10: \u003c\/strong\u003e\u003cbr\u003e± 0.04 °C at –200 °C \u003cbr\u003e± 0.04 °C at 0 °C \u003cbr\u003e± 0.09 °C at 200 °C \u003cbr\u003e± 0.09 °C at 300 °C \u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e5622-16 and 5622-32: \u003c\/strong\u003e\u003cbr\u003e± 0.04 °C at –200 °C\u003cbr\u003e± 0.04 °C at 0 °C \u003cbr\u003e± 0.045 °C at 200 °C \u003cbr\u003e± 0.055 °C at 300 °C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eTime Constant\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e(63.2 %) \u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003eFrom 0 °C to 100 °C: \u003cbr\u003e\u003cstrong\u003e5622-05:\u003c\/strong\u003e 0.4 seconds \u003cbr\u003e\u003cstrong\u003e5622-10:\u003c\/strong\u003e 1.5 seconds \u003cbr\u003e\u003cstrong\u003e5622-16: \u003c\/strong\u003e3.0 seconds \u003cbr\u003e\u003cstrong\u003e5622-32: \u003c\/strong\u003e10 seconds (90 %) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImmersion Depth \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5622-05:\u003c\/strong\u003e 10 mm (0.4 in) \u003cbr\u003e\u003cstrong\u003e5622-10:\u003c\/strong\u003e 20 mm (0.8 in) \u003cbr\u003e\u003cstrong\u003e5622-16:\u003c\/strong\u003e 32 mm (1.25 in) \u003cbr\u003e\u003cstrong\u003e5622-32:\u003c\/strong\u003e 64 mm (2.5 in) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThermal EMF \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 mV at 350 °C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSheath \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e316 SST \u003cbr\u003e\u003cstrong\u003e5622-05:\u003c\/strong\u003e 100 x 0.5 mm (4 x 0.02 in) \u003cbr\u003e\u003cstrong\u003e5622-10:\u003c\/strong\u003e 100 x 1.0 mm (4 x 0.04 in) \u003cbr\u003e\u003cstrong\u003e5622-16:\u003c\/strong\u003e 200 x 1.6 mm (8 x 0.06 in) \u003cbr\u003e\u003cstrong\u003e5622-32:\u003c\/strong\u003e 200 x 3.2 mm (8 x 0.13 in) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCable \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePVC, 4-wire cable, 2 meters long, 90 °C max temp \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv role=\"tabpanel\" aria-labelledby=\"models-label\" class=\"tab-pane\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluke","offers":[{"title":"5622-05-X","offer_id":54038944842022,"sku":"5622-05-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5622-10-X","offer_id":54038944874790,"sku":"5622-10-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5622-16-X","offer_id":54038944907558,"sku":"5622-16-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5622-32-X","offer_id":54038944940326,"sku":"5622-32-X","price":0.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/9797\/0214\/files\/1a68015e-9ce8-46fb-9a79-b2a401706f43_original__size.jpg?v=1791381010"},{"product_id":"5626-5628-secondary-standard-prt","title":"5626\/5628 Secondary Standard PRT","description":"\u003cp\u003e5626\/2628 platinum resistance thermometer from Fluke Calibration meets all ITS-90 requirements for resistance ratios \u0026amp; has an accuracy of ± 0.006 °C at 0 °C.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eIf you’re using block calibrators, furnaces, or temperature points above normal PRT (platinum resistance thermometer) temperatures (420 °C), then these two PRTs are for you. The Fluke 5626 is nominally 100 Ω and the 5628 (formerly Hart Scientific) is nominally 25.5 Ω. Both instruments have a temperature range of –200 °C to 661 °C. They make great working or check standards for calibration work up to the aluminum point.\u003c\/p\u003e\u003cp\u003eUsing a regular PRT at temperatures above 500 °C exposes the platinum to contamination. If the PRT is used as a reference or calibration standard, contamination is a major problem. SPRTs (standard platinum resistance thermometers), which are more expensive and delicate, can handle the higher temperatures, but with greater risk to the instrument due to shock, contamination, or mishandling. The 5626 and 5628 are designed to reduce the contamination risk through the use of internal protection while not impairing performance.\u003c\/p\u003e\u003cp\u003eIn addition to the right measurement performance and durability, a PRT for secondary applications should be priced affordably. Fluke Calibration’s new PRTs are inexpensive and come with an accredited calibration. The calibration comes complete with ITS-90 constants and a resistance-versus-temperature table.\u003c\/p\u003e\u003cp\u003eCheck the temperature range, check the stability, check the price! Who else gives you this much quality, performance, and value for your money? No one!\u003c\/p\u003e\u003cdiv\u003eModels\u003cul\u003e\n\u003cli\u003e5626-20-X\u003c\/li\u003e\n\u003cli\u003e5628-20-X\u003c\/li\u003e\n\u003cli\u003e5626-12-X\u003c\/li\u003e\n\u003cli\u003e5626-15-X\u003c\/li\u003e\n\u003cli\u003e5628-12-X\u003c\/li\u003e\n\u003cli\u003e5628-15-X\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e“X” in a model number denotes the probe termination (e.g. A = INFO-CON for 914X, B = bare wire, D = 5-pin DIN, G = gold pins, J = banana plugs, L = mini spade lugs, M = mini banana plugs, P = INFO-CON for 1523\/1524, S = spade lugs). Please specify when enquiring.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications: 5626, 5628 | Secondary Standard PRTs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eSpecifications \u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e–200 °C to 661 °C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHandle Temp. \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 °C to 80 °C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eR\u003csub\u003eTPW\u003c\/sub\u003e \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5626:\u003c\/strong\u003e 100 Ω (± 1 Ω)\u003cbr\u003e\u003cstrong\u003e5628:\u003c\/strong\u003e 25.5 Ω (± 0.5 Ω) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResistance Ratio W(Ga)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eW(302.9146K) ≥ 1.11807\u003cbr\u003eα ≥ 0.003925\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibrated Accuracy\u003csup\u003e†\u003c\/sup\u003e (k=2) \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.006 °C at –200 °C\u003cbr\u003e± 0.006 °C at 0 °C\u003cbr\u003e± 0.015 °C at 420 °C\u003cbr\u003e± 0.022 °C at 661 °C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cbr\u003e\u003cstrong\u003eStability \u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5626:\u003c\/strong\u003e ± 0.003 °C\u003cbr\u003e\u003cstrong\u003e5628:\u003c\/strong\u003e ± 0.002 °C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLong-Term Drift (k=2) \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5626:\u003c\/strong\u003e \u0026lt; 0.006 °C\/100 hours at 661 °C\u003cbr\u003e\u003cstrong\u003e5628:\u003c\/strong\u003e \u0026lt; 0.004 °C\/100 hours at 661 °C \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImmersion \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAt least 12.7 cm (5 in) recommended \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSheath \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInconel™ 600 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLead Wires \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-wire Super-Flex PVC, 22 AGW \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTermination \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGold-plated spade lugs, or specify \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.35 mm dia. x 305 mm, 381 mm, or 508 mm (0.25 x 12, 15, or 20 in) standard, custom lengths available \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAccredited calibrations from Fluke Calibration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\n\u003csup\u003e†\u003c\/sup\u003eIncludes calibration and 100 hr drift\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv role=\"tabpanel\" aria-labelledby=\"models-label\" class=\"tab-pane\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluke","offers":[{"title":"5626-20-X","offer_id":54038944973094,"sku":"5626-20-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5628-20-X","offer_id":54038945038630,"sku":"5628-20-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5626-12-X","offer_id":54038945071398,"sku":"5626-12-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5626-15-X","offer_id":54038945104166,"sku":"5626-15-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5628-12-X","offer_id":54038945136934,"sku":"5628-12-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5628-15-X","offer_id":54038945169702,"sku":"5628-15-X","price":0.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/9797\/0214\/files\/2b919798-b209-42e1-8937-b308011f9f7d_original__size.jpg?v=1791381019"},{"product_id":"5627a-precision-industrial-prt","title":"5627A Precision Industrial PRT","description":"\u003cp\u003eFluke Calibration's 5627A temperature RTD probe is NVLAP-accredited, has a temperature range up to 420 °C \u0026amp; an accuracy as good as ± 0.025 °C.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eOne of the best features of this RTD sensor is that it conforms to the standard 385 curve, letting you use your DIN\/IEC RTD meters fully. Why use a precision thermometer or RTD temperature probe that’s less accurate than your meter?\u003c\/p\u003e\u003cp\u003eThe 5627A is manufactured using a coil suspension element design for increased shock and vibration resistance. It has a mineral-insulated sheath with a minimum bend radius of 19 mm (3\/4-inch) for flexibility and durability. (Bend, if any, should be specified at time of order.)\u003c\/p\u003e\u003cp\u003eSix- and nine-inch 5627A precision thermometers are calibrated at –196 °C, –38 °C, 0 °C, 200 °C, and 300 °C. For 12-inch versions of these precision thermometers, the point at 300 °C is replaced by a calibration point at 420 °C.\u003c\/p\u003e\u003cp\u003eEach probe is individually calibrated and includes an accredited report of calibration from the manufacturer.\u003c\/p\u003e\u003cp\u003eThis RTD temperature probe is an excellent value for a precision thermometer. It has the price-to-accuracy and price-to-durability ratios you should demand in all of the precision thermometers you buy!\u003c\/p\u003e\u003cdiv\u003eModels\u003cul\u003e\n\u003cli\u003e5627A-6-X\u003c\/li\u003e\n\u003cli\u003e5627A-9-X\u003c\/li\u003e\n\u003cli\u003e5627A-12-X\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e“X” in a model number denotes the probe termination (e.g. A = INFO-CON for 914X, B = bare wire, D = 5-pin DIN, G = gold pins, J = banana plugs, L = mini spade lugs, M = mini banana plugs, P = INFO-CON for 1523\/1524, S = spade lugs). Please specify when enquiring.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications: 5627A | Precision Thermometer, RTD Temperature Probe\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResistance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNominal 100 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.00385 Ω\/Ω\/ °C nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e−200 °C to 420 °C (5627A-6 and 5627A-9 to 300 °C; transition and cable temperature: 0 °C to 150 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrift Rate (k=2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.04 °C at 0 °C after 100 hours at 420 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSheath Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLeads\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePTFE-insulated, nickel-plated stranded copper, 22 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTermination\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpecify. See Ordering Information.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTime Constant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFour seconds maximum for 63.2 % response to step change in water moving at 3 fps.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBending Radius\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSheath may be ordered with a bend on a minimum radius of 19 mm (3\/4 in) except for 50 mm (2 in) area of sheath near tip. (Fluke lab requires 20 cm [8 in] of unbent sheath to re-calibrate.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIncludes manufacturer's accredited calibration and table with R vs. T values in 1 °C increments from -196 °C to 420°C (to 300 °C for 5627A-6 and 5627A-9).\u003cbr\u003eITS-90 coefficients included.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImmersion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAt least 100 mm (4 in) recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibrated Accuracy† (k=2)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.026 °C at -196 °C\u003cbr\u003e± 0.046 °C at 0 °C\u003cbr\u003e± 0.077 °C at 200 °C\u003cbr\u003e± 0.124 °C at 420 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5627A-12:\u003c\/strong\u003e 305 mm x 6.35 mm (12 in x 1\/4 in)\u003cbr\u003e\u003cstrong\u003e5627A-9:\u003c\/strong\u003e 229 mm x 4.7 mm (9 in x 3\/16 in)\u003cbr\u003e\u003cstrong\u003e5627A-6:\u003c\/strong\u003e 152 mm x 4.7 mm (6 in x 3\/16 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e†Includes calibration uncertainty and 100 hr drift.\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv role=\"tabpanel\" aria-labelledby=\"models-label\" class=\"tab-pane\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluke","offers":[{"title":"5627A-6-X","offer_id":54038945792294,"sku":"5627A-6-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5627A-9-X","offer_id":54038945857830,"sku":"5627A-9-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5627A-12-X","offer_id":54038945890598,"sku":"5627A-12-X","price":0.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/9797\/0214\/files\/774f3a54-4fe0-4290-a984-b30801252109_original__size.jpg?v=1791381028"},{"product_id":"5640-series-thermistor-standards-probe","title":"5640 Series Thermistor Standards Probe","description":"\u003cp\u003e5640 temperature thermistor probes are affordable, accurate \u0026amp; provide great stability over wide range of temperature. Thermistor calibration traceable to NIST.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eEach temperature thermistor probe uses an ultra-stable glass thermistor enclosed in a thin-wall stainless steel tube. The basic semiconductor element is a bead of manganese, nickel, and cobalt oxides mounted on 0.1 mm platinum wires. For long-term stability, the thermistor is aged at various temperatures for 16 weeks. During the aging process, verification of the probe’s stability is done to ensure performance to published specs.\u003c\/p\u003e\u003cp\u003eThe 5640, 5641, and 5642 thermistor probes are designed for the temperature range of 0 °C to 60 °C. The 5643 and 5644 probes span the 0 °C to 100 °C temperature range. They offer stability of either ±0.002 °C or ±0.005 °C. These stability levels are guaranteed for one full year.\u003c\/p\u003e\u003cp\u003ePrecision thermistor calibration, traceable to NIST, is provided with each temperature probe. A computer-generated table in increments of 0.01 °C is furnished with each calibration based on the formula:\u003c\/p\u003e\u003cp\u003eR=exp(A + B\/T + C\/T2 + D\/T3)\u003c\/p\u003e\u003cp\u003eThe constants for the formula are obtained from a polynomial regression performed on the calibration data obtained. Over the range of 0 °C to 60 °C, thermistor calibration is performed at the triple point of water (0.01 °C) and 15 °C, 25 °C, 30 °C, 37 °C, 50 °C and 60 °C. For the 0 °C to 100 °C temperature range, the additional calibration points of 80 °C and 100 °C are used.\u003c\/p\u003e\u003cp\u003eEach temperature thermistor probe is individually calibrated and includes a report of calibration from the manufacturer. Contact Fluke Calibration for calibration in our accredited lab.\u003c\/p\u003e\u003cp\u003eThermistor standards are rugged, precision temperature sensors suitable for use as secondary or working temperature standards for laboratory metrology applications. Because they generally are not affected by shock and vibration, you can use them in the most difficult field environments without worrying about calibration integrity.\u003c\/p\u003e\u003cp\u003eCombine these thermistor probes with a 1560 Fluke Calibration Black Stack thermometer to read directly in °C, °F, or K. This combination gives you resolution of 0.0001 degrees and total system accuracy is better than ±0.004 °C.\u003c\/p\u003e\u003cp\u003eCompare the cost of a 5640 calibrated temperature thermistor probe and a Black Stack thermometer to the cost of one uncalibrated SPRT. Between 0 °C and 100 °C, nothing beats the value of the 5640 Series Thermistors.\u003c\/p\u003e\u003cdiv\u003eModels\u003cul\u003e\n\u003cli\u003e5640-X\u003c\/li\u003e\n\u003cli\u003e5641-X\u003c\/li\u003e\n\u003cli\u003e5642-X\u003c\/li\u003e\n\u003cli\u003e5643-X\u003c\/li\u003e\n\u003cli\u003e5644-X\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e“X” in a model number denotes the probe termination (e.g. A = INFO-CON for 914X, B = bare wire, D = 5-pin DIN, G = gold pins, J = banana plugs, L = mini spade lugs, M = mini banana plugs, P = INFO-CON for 1523\/1524, S = spade lugs). Please specify when enquiring.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications: 5640 Series Thermistor Standards Probes\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"8\"\u003e\u003cstrong\u003eThermistor Specifications \u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e Diameter x Length \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e Range \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDrift\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e °C \/Year \u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e\n\u003cstrong\u003eAccuracy (Mfr.)\u003csup\u003e†\u003c\/sup\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e 0–60 °C 60–100 °C \u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e Wires \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eNominal Resistance\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eat 25 °C \u003c\/strong\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e5640 \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.35 x 229 mm\u003cbr\u003e(0.25 x 9 in)\u003c\/td\u003e\n\u003ctd\u003e0 °C–60 °C \u003c\/td\u003e\n\u003ctd\u003e± 0.005 °C \u003c\/td\u003e\n\u003ctd\u003e± 0.0015 °C \u003c\/td\u003e\n\u003ctd\u003en\/a \u003c\/td\u003e\n\u003ctd\u003e4 \u003c\/td\u003e\n\u003ctd\u003e4.4 kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e5641 \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.18 x 114 mm\u003cbr\u003e(0.125 x 4.5 in)\u003c\/td\u003e\n\u003ctd\u003e0 °C–60 °C \u003c\/td\u003e\n\u003ctd\u003e± 0.002 °C \u003c\/td\u003e\n\u003ctd\u003e± 0.001 °C \u003c\/td\u003e\n\u003ctd\u003en\/a \u003c\/td\u003e\n\u003ctd\u003e4 \u003c\/td\u003e\n\u003ctd\u003e5 kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e5642 \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.18 x 229 mm\u003cbr\u003e(0.125 x 9 in)\u003c\/td\u003e\n\u003ctd\u003e0 °C–60 °C \u003c\/td\u003e\n\u003ctd\u003e± 0.002 °C \u003c\/td\u003e\n\u003ctd\u003e± 0.001 °C \u003c\/td\u003e\n\u003ctd\u003en\/a \u003c\/td\u003e\n\u003ctd\u003e4 \u003c\/td\u003e\n\u003ctd\u003e4 kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e5643 \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.18 x 114 mm\u003cbr\u003e(0.125 x 4.5 in)\u003c\/td\u003e\n\u003ctd\u003e0 °C–100 °C \u003c\/td\u003e\n\u003ctd\u003e± 0.005 °C \u003c\/td\u003e\n\u003ctd\u003e± 0.0015 °C \u003c\/td\u003e\n\u003ctd\u003e± 0.0025 °C \u003c\/td\u003e\n\u003ctd\u003e4 \u003c\/td\u003e\n\u003ctd\u003e7.5 kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e5644 \u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.18 x 229 mm\u003cbr\u003e(0.125 x 9 in)\u003c\/td\u003e\n\u003ctd\u003e0 °C–100 °C \u003c\/td\u003e\n\u003ctd\u003e± 0.005 °C \u003c\/td\u003e\n\u003ctd\u003e± 0.0015 °C \u003c\/td\u003e\n\u003ctd\u003e± 0.0025 °C \u003c\/td\u003e\n\u003ctd\u003e4 \u003c\/td\u003e\n\u003ctd\u003e7.5 kΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"8\"\u003e\n\u003csup\u003e†\u003c\/sup\u003eDoes not include long-term drift, resistance traceability adds additional ± 0.0025 %. \u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv role=\"tabpanel\" aria-labelledby=\"models-label\" class=\"tab-pane\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluke","offers":[{"title":"5640-X","offer_id":54038945956134,"sku":"5640-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5641-X","offer_id":54038946021670,"sku":"5641-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5642-X","offer_id":54038946054438,"sku":"5642-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5643-X","offer_id":54038946087206,"sku":"5643-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5644-X","offer_id":54038946119974,"sku":"5644-X","price":0.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/9797\/0214\/files\/ca7a7c92-64b2-43ab-b2f6-b308011f9f19_original__size.jpg?v=1791381038"},{"product_id":"5649-5650-type-r-s-thermocouple-standards","title":"5649\/5650 Type R and Type S Thermocouple Standards","description":"\u003cp\u003eType R and Type S thermocouples deliver precise temperature measurements from 0 °C to 1450 °C. Choose from two sizes to suit your needs.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe measuring junction of both the 5649 and the 5650 thermocouples is encased in a 0.25-inch (6.35 mm) alumina sheath that can be ordered in lengths of 20 or 25 inches (50.8 or 63.5 cm) to fit the specific requirements of your application. A reference, or “cold,\" junction may also be ordered. The reference junction uses a stainless steel sheath and is 8.25 inches long (21 cm) by 0.188 inches in diameter (4.8 mm). The thin diameter minimizes the immersion depth needed, but the extra length ensures you can get all the immersion you like.\u003c\/p\u003e\u003cp\u003eSpecial tin-plated, solid-copper connecting wires with ultra-low EMF properties are used to help retain the integrity of your thermocouple measurement junction where the probe attaches to your micro voltmeter or Hart Black Stack.\u003c\/p\u003e\u003cp\u003eEach thermocouple probe comes with an individual calibration with fixed-point standards to reduce uncertainties to 0.12 °C to 0.37 °C from 232 °C to 962 °C and 0.37 °C to 2.5 °C, increasing linearly \u0026gt;962 °C to 1450 °C (extrapolated).\u003c\/p\u003e\u003cp\u003eThe probe assembly can be easily disassembled for performing your own bare-wire calibrations.\u003c\/p\u003e\u003cdiv\u003eModels\u003cul\u003e\n\u003cli\u003e5649-20-X\u003c\/li\u003e\n\u003cli\u003e5649-20CX\u003c\/li\u003e\n\u003cli\u003e5649-25-X\u003c\/li\u003e\n\u003cli\u003e5649-25CX\u003c\/li\u003e\n\u003cli\u003e5650-20-X\u003c\/li\u003e\n\u003cli\u003e5650-20CX\u003c\/li\u003e\n\u003cli\u003e5650-25-X\u003c\/li\u003e\n\u003cli\u003e5650-25CX\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e“X” in a model number denotes the probe termination (e.g. A = INFO-CON for 914X, B = bare wire, D = 5-pin DIN, G = gold pins, J = banana plugs, L = mini spade lugs, M = mini banana plugs, P = INFO-CON for 1523\/1524, S = spade lugs). Please specify when enquiring.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications: Type S and Type R Thermocouples 5649\/5650\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRange\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0 °C to 1450 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePlatinum\/13 % Rhodium vs. platinum (type R)\u003cbr\u003ePlatinum\/10 % Rhodium vs. platinum (type S)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCalibration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCalibration Uncertainty (k=2, 95%): \u003cbr\u003e232 °C to 962 °C 0.12 °C to 0.37 °C \u003cbr\u003e\u0026gt;962 °C to 1450 °C (extrapolated): 0.37 °C to 2.5 °C, increasing linearly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eHot Junction\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eSheath Dimensions\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd\u003e6.35 mm (0.25 in) diameter;\u003cbr\u003esee Ordering Information for lengths\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReference Junction Sheath Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.8 mm dia. x 210 mm long (0.188 x 8.25 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLong-Term Stability\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.5 °C to 1100 °C\u003cbr\u003e± 2.0 °C to 1450 °C (over one year depending on usage)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShort-Term Stabilities\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e± 0.2 °C to 1100 °C\u003cbr\u003e± 0.6 °C to 1450 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eImmersion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAt least 152 mm (6 in) recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtective Case\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eModel 2609 case included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 kg (2 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv role=\"tabpanel\" aria-labelledby=\"models-label\" class=\"tab-pane\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluke","offers":[{"title":"5649-20-X","offer_id":54038946251046,"sku":"5649-20-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5649-20CX","offer_id":54038946349350,"sku":"5649-20CX","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5649-25-X","offer_id":54038946382118,"sku":"5649-25-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5649-25CX","offer_id":54038946414886,"sku":"5649-25CX","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5650-20-X","offer_id":54038946447654,"sku":"5650-20-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5650-20CX","offer_id":54038946480422,"sku":"5650-20CX","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5650-25-X","offer_id":54038946513190,"sku":"5650-25-X","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5650-25CX","offer_id":54038946545958,"sku":"5650-25CX","price":0.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/9797\/0214\/files\/cfa73057-9c0a-4395-85c2-b30801250b0a_original__size.jpg?v=1791381047"},{"product_id":"5681-5683-5684-quartz-sheath-sprt","title":"5681\/5683\/5684 Quartz-Sheath SPRT","description":"\u003cp\u003eSPRT from Fluke Calibration are highly stable, have low drift rates, and can be used over a wide range of temperature. Request a product quote today.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eFluke Calibration has four quartz-sheath SPRTs covering the ITS-90 range of –200 °C to 1070 °C. The 5681 is used from –200 °C to the aluminum point at 660.323 °C. The 5683 is used from –200 °C to 480 °C with greater long term stability. The 5684 covers higher temperatures up to 1070 °C and can be calibrated at the silver point.\u003c\/p\u003e\u003cp\u003eYes, they have all the features you would expect in a world-class SPRT. They have gold-plated spade lugs, a strain-relieved connection to the four-wire cable, convection prevention disks, the finest quartz glass available, delustered stems, and the purest platinum wire available.\u003c\/p\u003e\u003cp\u003eThe purity of a thermometer’s platinum wire is critical to meeting ITS-90 requirements. Maintaining that purity over the life of the thermometer impacts long-term stability. The quartz glass tube of the SPRT should be properly sealed to prevent contamination of the platinum sensor. Others use mechanical assemblies and epoxy seals. These introduce additional materials to the thermometer’s internal environment and can be prone to mechanical failure, risking exposure of the platinum to impurities.\u003c\/p\u003e\u003cp\u003eTheoretically, the best seal would be a direct seal between the quartz glass and the platinum wire. However, the quartz glass used in thermometer sheaths has a very small coefficient of expansion while platinum has a much larger coefficient of expansion. If you simply sealed the sheath’s glass to the platinum wire, these different rates of expansion would result in a poor seal as the assembly is exposed to changing temperatures.\u003c\/p\u003e\u003cp\u003eWe’ve figured out a way to match the expansion coefficients of the glass sheath and the platinum wires. We do it by creating a graduating seal that’s made of 18 separate pieces of glass, each with a different coefficient of expansion. The expansion and contraction rate of the final piece of glass matches that of the platinum, resulting in an overall seal that prevents gas leakage and impurity penetration for at least 20 years.\u003cbr\u003eFusing each piece of glass to the next is a painstaking process. Sure it costs us extra! But the results are worth it.\u003c\/p\u003e\u003cp\u003eThere’s more! We use only pure quartz glass materials for the cross frames, disks, and tubes. We don’t use mica or ceramic materials. We have a special glass-treating process to increase the resistance of the quartz to devitrification and remove more impurities than the typical cleaning process.\u003c\/p\u003e\u003cp\u003eWe’ve done some research to find the best-performing balance of argon to oxygen in the tube. Some oxygen in the sheath is necessary to minimize the danger of the platinum being poisoned by foreign metals at high temperatures, but too much oxygen at temperatures below 500 °C accelerates the oxidation process affecting the integrity of the platinum. We’ve got a balance that provides exactly the right protection for the platinum.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003eEach of these seemingly small things adds up to better uncertainties and less drift. Fluke Calibration's SPRTs typically drift less than 0.001 °C per year.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003e5681: –200 °C to 670 °C\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eThis 25-ohm thermometer is the workhorse of the ITS-90 ranges. It can be calibrated for any of the subranges from the triple point of argon to the freezing point of aluminum. The 5681 meets the ITS-90 requirements for resistance ratios as follows:\u003c\/p\u003e\u003cp\u003eW(302.9146 K) ≥ 1.11807\u003cbr\u003eand\u003cbr\u003eW(234.3156 K) ≤ 0.844235\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003e5683: –200 °C to 480 °C\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eWhile SPRTs traditionally cover temperatures to the aluminum point (660 °C), most measurements occur between –100 °C and 420 °C. The 5683 SPRT covers this range and more, from –200 °C to 480 °C, and does so with long-term stabilities that extended range SPRTs can’t match. Typical drift is less than 0.5 mK after 100 hours at 480 °C.\u003c\/p\u003e\u003ch2\u003e\u003cstrong\u003e5684: 0 °C to 1070 °C\u003c\/strong\u003e\u003c\/h2\u003e\u003cp\u003eITS-90 extended the use of the platinum thermometer from 630 °C to 962 °C. The 0.25-ohm HTPRT sensor uses a strip-shaped support made from high-purity quartz glass. The 2.5-ohm model uses a quartz glass cross frame. Stability after thermal cycling is excellent, and the design is reasonably tolerant of vibration. Choose from 0.25-ohm or 2.5-ohm nominal R\u003csub\u003eTPW\u003c\/sub\u003e values. In addition to meeting the resistance ratio requirements shown above, these thermometers meet the following additional criterion:\u003c\/p\u003e\u003cp\u003eW(1234.93 K) ≥ 4.2844\u003c\/p\u003e\u003cdiv\u003eModels\u003cul\u003e\n\u003cli\u003e5681-S\u003c\/li\u003e\n\u003cli\u003e5683-S\u003c\/li\u003e\n\u003cli\u003e5684-S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications: 5681, 5683, and 5684 Quartz-Sheath SPRTs\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecifications\u003c\/td\u003e\n\u003ctd\u003e5681\u003c\/td\u003e\n\u003ctd\u003e5683\u003c\/td\u003e\n\u003ctd\u003e5684\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTemperature Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e–200 °C to\u003cbr\u003e670 °C\u003c\/td\u003e\n\u003ctd\u003e–200 °C to\u003cbr\u003e480 °C\u003c\/td\u003e\n\u003ctd\u003e0 °C to\u003cbr\u003e1070 °C\u003csup\u003e†\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNominal RTPW\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e25.5 Ω\u003c\/td\u003e\n\u003ctd\u003e0.25 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCurrent\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e1 mA\u003c\/td\u003e\n\u003ctd\u003e14.14 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResistance Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eW(302.9146 K) ≥ 1.11807 and\u003cbr\u003eW(234.3156 K) ≤ 0.844235\u003c\/td\u003e\n\u003ctd\u003eW(302.9146 K) ≥ 1.11807 and\u003cbr\u003eW(1234.93 K) ≥ 4.2844\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensitivity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e0.1 Ω\/°C\u003c\/td\u003e\n\u003ctd\u003e0.001 Ω\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDrift Rate\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.002 °C\/100\u003cbr\u003ehours at\u003cbr\u003e661 °C (typically \u0026lt; 0.001 °C)\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.001 °C\/100 hours at\u003cbr\u003e480 °C (0.0005 °C typical)\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.003 °C\/100 hours at 1070 °C\u003cbr\u003e(typically \u0026lt; 0.001 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSensor Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eQuartz glass cross\u003c\/td\u003e\n\u003ctd\u003eQuartz glass\u003cbr\u003estrip with notches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eDiameter of Sensor\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePt Wire\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003e0.07 mm (0.003 in)\u003c\/td\u003e\n\u003ctd\u003e0.4 mm (0.016 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProtective Sheath\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"2\"\u003eQuartz glass, Diameter: 7 mm (0.28 in), Length: 520 mm (20.5 in)\u003c\/td\u003e\n\u003ctd\u003eQuartz glass, Diameter: 7 mm (0.28 in), Length: 680 mm (26.8 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd colspan=\"4\"\u003e\n\u003csup\u003e†\u003c\/sup\u003eThe official maximum temperature of an SPRT as a defining interpolation instrument of the ITS-90 is 961.78 °C, but these types of SPRTs were found to be stable up to at least 1070 °C. The annealing temperature during the stability test was 1085 °C. The lower temperature limit of these types of SPRTs can be as low as –200 °C.\u003cbr\u003eIn general, it is suggested that a 25-ohm SPRT be used below 0 °C.\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv role=\"tabpanel\" aria-labelledby=\"models-label\" class=\"tab-pane\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluke","offers":[{"title":"5681-S","offer_id":54038946578726,"sku":"5681-S","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5683-S","offer_id":54038946611494,"sku":"5683-S","price":0.0,"currency_code":"HKD","in_stock":true},{"title":"5684-S","offer_id":54038946644262,"sku":"5684-S","price":0.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/9797\/0214\/files\/465ae7f1-5b11-481b-984e-b3070171ec69_original__size.jpg?v=1791381056"},{"product_id":"5686-b-glass-capsule-sprt","title":"5686-B Glass Capsule SPRT","description":"\u003cp\u003eFluke Calibration's 5686 SPRT covers temperatures from –260 °C to 232 °C. It complies completely with ITS-90 \u0026amp; is small yet reliable \u0026amp; stable.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003ch3\u003e\u003cem\u003ePrecision, Stability, and Reliability for Extreme Temperature Measurement\u003c\/em\u003e\u003c\/h3\u003e\u003ch3\u003ePrimary Standard SPRT for Cryogenic and Immersion Applications\u003c\/h3\u003e\u003cp\u003eThe Fluke 5686-B Glass Capsule Standard Platinum Resistance Thermometer (SPRT) is designed as a primary standard instrument for converting temperature to resistance with uncompromising accuracy. Fully compliant with ITS-90, the 5686-B is part of the trusted Fluke Calibration SPRT family, delivering outstanding performance in both laboratory and demanding field environments.\u003c\/p\u003e\u003ch3\u003eKey Features and Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eITS-90 Compliance\u003c\/strong\u003e – The 5686-B meets the requirements of the International Temperature Scale of 1990 (ITS-90), with resistance ratios:\u003cul\u003e\n\u003cli\u003eW(302.9146 K) ≥ 1.11807\u003c\/li\u003e\n\u003cli\u003eW(234.3156 K) ≤ 0.844235\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Temperature Range\u003c\/strong\u003e – Covers –260 °C (13 K) to 232 °C (505 K), making it ideal for cryogenic applications and high-precision temperature measurement across a wide spectrum.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design\u003c\/strong\u003e – With a diameter of just 5.8 mm and a length of 56 mm, the 5686-B is well-suited for applications requiring a totally immersed probe or where space is limited.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixed-Point Calibration Ready\u003c\/strong\u003e – Fixed-point calibrations are available from –200 °C to 232 °C, ensuring accuracy for critical measurement points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Construction\u003c\/strong\u003e – The sensing element is made from high-purity platinum wire wound strain-free on a fused silica cross frame, and the special glass capsule is pressure-sealed with 5N pure helium to maintain integrity and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesigned for Demanding Measurement Environments\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Temperature Excellence\u003c\/strong\u003e – Engineered for operation down to 13 K (–260 °C), the 5686-B is the standard of choice for cryogenic temperature measurement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimized Heat Flow\u003c\/strong\u003e – The glass capsule design supports full immersion, reducing heat flow from or to the sensor and improving measurement stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlternative to Long-Stem SPRTs\u003c\/strong\u003e – When traditional long-stem SPRTs are not suitable, the compact 5686-B Glass Capsule SPRT fits into vessels and setups where complete encasement is needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven Reproducibility, Reliability, and Stability\u003c\/strong\u003e – Each thermometer is carefully annealed and tested for stability, delivering consistent, accurate results in both standard and challenging scenarios.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Choose the Fluke 5686-B Glass Capsule SPRT?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWide temperature coverage for both cryogenic and calibration applications\u003c\/li\u003e\n\u003cli\u003eCompact, fully immersible probe design for versatile use\u003c\/li\u003e\n\u003cli\u003eHigh-purity platinum element and strain-free construction for unmatched stability\u003c\/li\u003e\n\u003cli\u003ePressure-sealed capsule maintains sensor protection and performance\u003c\/li\u003e\n\u003cli\u003eMeets rigorous international standards (ITS-90) for trustworthy measurement\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFor laboratories and industries where precise, stable, and reproducible temperature measurement is essential, the Fluke 5686-B Glass Capsule SPRT sets the benchmark for performance and reliability.\u003c\/strong\u003e\u003c\/p\u003e\u003cdiv\u003eModels\u003cul\u003e\u003cli\u003e5686-B\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eSpecifications: 5686-B Glass Capsule SPRT\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003eSpecifications\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e5686: –260 °C to 232 °C (13 K to 505 K)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal R\u003csub\u003eTPW\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd\u003e25.5 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistance Ratio\u003c\/td\u003e\n\u003ctd\u003eW(302.9146 K) ≥ 1.11807\u003cbr\u003eW(234.3156 K) ≤ 0.844235\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrift Rate\u003c\/td\u003e\n\u003ctd\u003e5686: \u0026lt; 0.005 °C per year over the entire range\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelf-heating at TPW\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.002 °C under 1 mA current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReproducibility\u003c\/td\u003e\n\u003ctd\u003e±0.001 °C or better\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eR TPW Drift After Thermal Cycling\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.001 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilling Gas\u003c\/td\u003e\n\u003ctd\u003e5686: helium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead Wires\u003c\/td\u003e\n\u003ctd\u003eFour platinum wires, 30 mm long (1.18 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e5686: 5.8 mm dia. x 56 mm long (0.23 x 2.2 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv role=\"tabpanel\" aria-labelledby=\"models-label\" class=\"tab-pane\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluke","offers":[{"title":"5686-B","offer_id":54038946742566,"sku":"5686-B","price":0.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/9797\/0214\/files\/2da0ed33-b087-4b66-95d4-b307016ac89e_original__size.jpg?v=1791381065"},{"product_id":"5698-25-working-standard-sprt","title":"5698-25 Working Standard SPRT","description":"\u003cp\u003e5698-25 SPRT from Fluke Calibration meets ITS-90 SPRT guidelines, has a drift rate of 0.003 °C \u0026amp; covers a temperature range from –200 °C to 670 °C.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003ch3\u003e\u003cem\u003eTrue Standard Platinum Resistance Thermometer for Reliable Laboratory Performance\u003c\/em\u003e\u003c\/h3\u003e\u003ch3\u003eAccurate, Trusted, and Fully Specified for Your Lab\u003c\/h3\u003e\u003cp\u003eThe Fluke 5698-25 Working Standard Standard Platinum Resistance Thermometer (SPRT) is designed for those who demand uncompromising accuracy, stability, and transparency in their laboratory temperature standards. Fully compliant with ITS-90 requirements and meticulously engineered for long-term reliability, the 5698-25 is the ideal choice for transferring standards from calibration labs to working labs and for supporting critical measurement processes.\u003c\/p\u003e\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue ITS-90 Standard\u003c\/strong\u003e – Meets the full resistance ratio requirements for SPRTs under the International Temperature Scale of 1990 (ITS-90), ensuring the highest level of traceability and measurement confidence.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Measurement Range\u003c\/strong\u003e – With a temperature range from –200 °C to 670 °C, the 5698-25 covers most laboratory, industrial, and research calibration needs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Stability and Low Drift\u003c\/strong\u003e – Typical long-term drift is less than 3 mK (and guaranteed below 6 mK) at the triple point of water after 100 hours at 670 °C—ensuring reliable performance over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrain-Free Platinum Sensor\u003c\/strong\u003e – The sensing element is made from high-purity platinum wire, wound in a completely strain-free configuration on a fused silica cross frame, then annealed and tested for optimum stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust, Sealed Construction\u003c\/strong\u003e – Features a 485-mm fused silica sheath, pressure sealed with a special argon\/oxygen gas mix, convection prevention discs to reduce stem errors, and a terminal box handle with strain relief. Wires are terminated with gold-plated spade lugs for secure connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Compatibility\u003c\/strong\u003e – Works seamlessly with Fluke 1594A\/1595A Super-Thermometer, 1560 Black Stack, or 1529 Chub-E4 Thermometer readouts, thanks to its standard 25-ohm resistance and 1 mA excitation current requirement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Calibration Options\u003c\/strong\u003e – Available with or without calibration. Calibrations are performed in Fluke’s accredited lab using fixed-point or comparison methods, providing full ITS-90 traceability and maximum value for your investment.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesigned as a Working Standard\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is a Working Standard?\u003c\/strong\u003e – A working standard is used to transfer the ITS-90 from a national or standards laboratory to your facility. The 5698-25 is carefully calibrated against intrinsic references, making it the backbone of your lab’s traceability chain.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication Flexibility\u003c\/strong\u003e – Suited for both standards transfer and daily calibration tasks, with robust construction to withstand routine use in busy calibration environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTransparent, Reliable, and Supported\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Performance Specifications Provided\u003c\/strong\u003e – Unlike some manufacturers, Fluke publishes complete specifications for the 5698-25, so you know exactly what you’re getting before you buy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Support\u003c\/strong\u003e – Benefit from Fluke Calibration’s renowned post-purchase support and calibration service options, ensuring your working standard maintains the best possible performance for years to come.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv\u003eModels\u003cul\u003e\u003cli\u003e5698-25\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eSpecifications: 5698-25 Working Standard SPRT\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003eSpecifications\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e–200 °C to 670 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal R\u003csub\u003eTPW\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd\u003e25.5 Ω (± 0.5 Ω)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e1.0 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistance Ratios\u003c\/td\u003e\n\u003ctd\u003eW(234.315 K) ≤ 0.844235\u003cbr\u003eW(302.9146 K) ≥ 1.11807\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e0.1 Ω\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrift Rate\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.006 °C\/100 hours at max temperature (typically \u0026lt; 0.003 °C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelf-heating at TPW\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.002 °C under 1 mA current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReproducibility\u003c\/td\u003e\n\u003ctd\u003e± 0.0015 °C or better\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eR\u003csub\u003eTPW\u003c\/sub\u003e Drift After Thermal Cycling\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.001 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter of Pt Sensor Wire\u003c\/td\u003e\n\u003ctd\u003e0.07 mm (0.003 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtective Sheath\u003c\/td\u003e\n\u003ctd\u003eQuartz Glass\u003cbr\u003eDiameter: 7 mm (0.28 in)\u003cbr\u003eLength: 485 mm (19.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead Wires\u003c\/td\u003e\n\u003ctd\u003eFour sensor wires\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv role=\"tabpanel\" aria-labelledby=\"models-label\" class=\"tab-pane\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluke","offers":[{"title":"5698-25","offer_id":54038946939174,"sku":"5698-25","price":0.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/9797\/0214\/files\/577443e7-39bf-4642-b580-b3070171ed70_original__size.jpg?v=1791381072"},{"product_id":"5699-high-temperature-metal-sheath-sprt","title":"5699 High-Temperature Metal-Sheath SPRT","description":"\u003cp\u003eFluke Calibration's 5699 SPRT has a protective sheathing material that allows use in calibration furnaces or calibration baths with high temperatures of up to 670 °C.\u003c\/p\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eDesigned and manufactured by our primary standards metrologists, the strain-free sensing element in the 5699 meets all ITS-90 requirements for SPRTs and minimizes long-term drift.\u003c\/p\u003e\u003cp\u003eAfter one year of regular usage, drift is less than 0.008 °C (\u0026lt; 0.003 °C is typical). Even lower drift rates are possible depending on care and handling. A fifth wire for grounding is added to the four-wire sensor to help reduce electrical noise, particularly for AC measurements. Finally, you can get an improved version of an old industry-standard Inconel-sheathed SPRT.\u003c\/p\u003e\u003cp\u003eThe 5699 is constructed with a 0.219-inch-diameter Inconel sheath for high durability and fast response times. Inside the sheath, the sensing element is protected by a thin platinum housing that shields the sensor from contamination from free-floating metal ions found within metal environments at high temperatures. Reduced contamination means a low drift rate—even after hours of use in metal-block furnaces at high temperatures.\u003c\/p\u003e\u003cp\u003eIf you choose not to calibrate the 5699 yourself, a wide variety of options are available from Fluke Calibration’s own primary standards laboratory, including fixed-point calibrations covering any range between –200 °C and 661 °C.\u003c\/p\u003e\u003cp\u003eAt Fluke Calibration, we use SPRTs every day. We design them, build them, calibrate them, use them as standards, and know what it takes to make a reliably performing instrument. Why buy from anyone else?\u003c\/p\u003e\u003cp\u003ePlease note that the Fluke 5699 does not come calibrated with accreditation by default. If calibration is required, we recommend reaching out directly to Fluke Corporation or contacting your local Fluke representative to arrange for the specific accreditation needed across your desired temperature ranges.\u003c\/p\u003e\u003cdiv\u003eModels\u003cul\u003e\u003cli\u003e5699-S\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003eSpecifications: 5699 High-Temperature Metal-Sheath SPRT\u003c\/h2\u003e\n\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd colspan=\"2\"\u003eSpecifications\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Range\u003c\/td\u003e\n\u003ctd\u003e–200 °C to 661 °C (recommended annealing temperature \u003cbr\u003e665 °C) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal RTPW\u003c\/td\u003e\n\u003ctd\u003e25.5Ω (± 0.5Ω)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent\u003c\/td\u003e\n\u003ctd\u003e1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistance Ratio\u003c\/td\u003e\n\u003ctd\u003eW(302.9146 K) ≥ 1.11807\u003cbr\u003eW(234.3156 K) ≤ 0.844235\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity\u003c\/td\u003e\n\u003ctd\u003e0.1 Ω\/ °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrift Rate\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.008 °C\/year (\u0026lt; 0.003 °C\/year typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRepeatability\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 1 mK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSelf-heating at TPW\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.001 °C under 1 mA current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReproducibility\u003c\/td\u003e\n\u003ctd\u003e± 0.001 °C or better\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRTPW Drift After Thermal Cycling\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 0.001 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter of Pt Sensor Wire\u003c\/td\u003e\n\u003ctd\u003e0.07 mm (0.003 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLead Wires\u003c\/td\u003e\n\u003ctd\u003eFour sensor wires plus grounding wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtective Sheath\u003c\/td\u003e\n\u003ctd\u003eInconel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiameter:\u003c\/td\u003e\n\u003ctd\u003e5.56 mm ± 0.13 mm (0.219 in ± 0.005 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength:\u003c\/td\u003e\n\u003ctd\u003e482 mm (19 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e\u0026gt; 100 MΩ at 661 °C\u003cbr\u003e\u0026gt; 1000 MΩ at 20 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cdiv role=\"tabpanel\" aria-labelledby=\"models-label\" class=\"tab-pane\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fluke","offers":[{"title":"5699-S","offer_id":54038946971942,"sku":"5699-S","price":0.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/9797\/0214\/files\/40c095b4-9acb-4303-8856-b308010c6945_original__size.jpg?v=1791381079"}],"url":"https:\/\/nplab.shop\/collections\/reference-probe-sprt.oembed","provider":"NP LAB","version":"1.0","type":"link"}