AM1750 series Secondary Reference PRT provides our customers an affordable reference probe for precision temperature measurement and calibration in labs and fields. The PRT features accuracy of ±0.015°C at 0.01°C ; short term stability of ±0.007°C. Two different lengths of PRTs 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: ±0.015 °C at 0.01°C
Long term drift: ±0.01 °C
Short term stability: 0.007 °C
Durable and shock resistance
Temperature Coefficient 0.003925
W(Ga)>=1.11807
Inconeltm sheath
Customized dimensions available
- SPECIFICATIONSTemperature Range1750-12: -200°C to 670°C1750-20: -200°C to 670°CResistance at 0 °CNominal 100 ΩTemperature Coefficient0.003925 Ω/ Ω/°CAccuracy±0.025°C at -196 °C±0.015°C at 0.01 °C±0.035°C at 420 °C±0.05°C at 660 °CDrift±0.01°C at 0 °C after 100 hours at 660 °CShort Term Stability±0.007°CThermal Shock±0.005°C after 10 times thermal cycles from minimum to maximum temperaturesHysteresis<=0.005°CSelf-heating50 mW/°CResponse Time9 seconds for 63% response to step change in water moving at 3 feet per secondMeasurement Current0.5 mA or 1 mASensor Length32 mmSensor Location5 mm from tipInsulation Resistance>1000 MΩ at room temperatureSheath MaterialInconeltmDimension1750-12: 0.25 inch X 12 inch (6.35 mm X 305 mm)1750-20: 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 Options1750-12-T, PRT with NIST traceable calibration and data1750-20-T, PRT with NIST traceable calibration and dataNVLAP – Accredited Calibrations available per request
- Optional AccessoriesModelDescription9001Carrying Case for 1750-129002Carrying Case for 1750-20
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