AM1760 series Secondary Standard PRT provides our customers an affordable SPRT alternative for precision temperature measurement and calibration in labs and fields. This SPRT features accuracy of ±0.006°C at 0.01°C , short term stability of ±0.002°C and very low drift rate of less than 19 mK after 500 hours. Two different lengths of SPRTs are available at 12-inch and 20-inch.
The sensing element is designed to protect the platinum sensing wire from contamination at high temperatures, giving the device a high level of stability and repeatability in performance. A uniquely designed support structure and filling material provides excellent balance between the hysteresis effect, mechanical shock and thermal shock performance. This high performance probe fully meets ITS-90 criteria for reference thermometers.
Features
Temperature range: -200 °C to 670 °C
Accuracy: ±0.006°C at 0.01°C
Long term drift: ±0.019°C
Short term stability: 0.002 °C
Temperature Coefficient 0.003925
W(Ga)>=1.11807
Inconeltm sheath
Customized dimensions available
- SPECIFICATIONSTemperature Range-200°C to 670°CResistance at 0 °C1760 – Nominal 100 Ω1762 – Nominal 25 ΩTemperature Coefficient0.003925 Ω/ Ω/°CAccuracy±0.007°C at -196 °C±0.006°C at 0.01 °C±0.015°C at 420 °C±0.025°C at 660 °CDrift*±0.004°C at 0 °C after 100 hours at 660 °CShort Term Stability±0.002°CThermal Shock±0.002°C after 10 times thermal cycles from minimum to maximum temperaturesSelf-heating0.0015 °C at 1 mA currentResponse Time9 seconds for 63% response to step change in water moving at 3 feet per secondMeasurement Current0.5 mA or 1 mASensor Length42 mmSensor Location5 mm from tipInsulation Resistance>1000 MΩ at room temperatureSheath MaterialInconeltmDimension1760/1762-12: 0.25 inch X 12 inch (6.35 mm X 305 mm)1760/1762-20: 0.25inch X 20 inch (6.35 mm X 500 mm)External LeadsTeflontm –insulated copper wire, 4 leads, 2.5 metersHandle Dimension15mm (OD) X 65 mm (L)Handle Temperature Range**-50°C to 180°CCalibration Options1760/1762-12-T, Secondary SPRT with NIST traceable calibration and data1760/1762-20-T, Secondary SPRT with NIST traceable calibration and data
- Optional AccessoriesModelDescription9001Wooden Carrying Case for 1760/1762-129002Wooden Carrying Case for 1760/1762-20
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