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Overview
AM1730 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, short term stability of ±0.007°C. Two different lengths of PRTs are available at 9-inch and 12-inch.
To reach the best performance in stability and repeatability, the sensing element is specially designed to protect the platinum sensing wire from contamination at high temperature. A unique support structure and filling material provide the best balance among the hysteresis effect, mechanical shock and thermal shock performance. This high performance probe meets ITS-90 criteria of reference thermometer fully.
Features
- Temperature range: -200 °C to 420 °C
- Accuracy: ±0.015 °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
Specifications
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Temperature Range
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1730-12: -200°C to 420°C
1730-9: -60°C to 300°C
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Resistance at 0 °C
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Nominal 100 Ω
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Temperature Coefficient
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0.003925 Ω/ Ω/°C
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Accuracy
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±0.025°C at -196 °C
±0.015°C at 0.01 °C
±0.035°C at 420 °C
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Drift
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±0.01°C at 0 °C after 100 hours at 420 °C
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Short Term Stability
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±0.007°C
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Thermal Shock
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±0.005°C after 10 times thermal cycles from minimum to maximum temperatures
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Hysteresis
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<=0.005°C
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Self-heating
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50 mW/°C
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Response Time
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9 seconds for 63% response to step change in water moving at 3 feet per second
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Measurement Current
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0.5 mA or 1 mA
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Sensor Length
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32 mm
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Sensor Location
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5 mm from tip
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Insulation Resistance
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>1000 MΩ at room temperature
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Sheath Material
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Inconeltm
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Dimension
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1730-12: 0.25 inch X 12 inch (6.35 mm X 309 mm)
1730-9: 0.187 inch X 9 inch (4.75 mm X 229 mm)
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External Leads
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Teflontm –insulated copper wire, 4 leads, 2.5 meters
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Handle Dimension
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1730-12: 15mm (OD) x 65mm (L)
1730-9: 10mm (OD) X 50 mm (L)
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Handle Temperature Range*
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-50°C to 180°C
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Calibration Options
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1730-12-T, PRT with NIST traceable calibration and data
1730-9-T, PRT with NIST traceable calibration and data
NVLAP - Accredited Calibrations available per request
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Optional Accessories
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Model
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Description
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9001
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Carrying Case
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