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Accumac / Probe / AM1730 Secondary Reference PRT

AM1730 Secondary Reference PRT

· Affordable reference probe

· Accuracy ±0.015 °C at 0.01 °C

· Temperature range: -200 °C to 420 °C

· Customized dimensions available

· Temperature range: -200 °C to 670 °C

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.


· 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

Temperature Range 1730-12: -200°C to 420°C
1730-9: -60°C to 300°C
Resistance at 0 °C Nominal 100 Ω
Temperature Coefficient 0.003925 Ω/ Ω/°C
Accuracy ±0.025°C at -196 °C
±0.015°C at 0.01 °C
±0.035°C at 420 °C
Drift* ±0.01°C at 0 °C after 100 hours at 420 °C
Short Term Stability ±0.007°C
Thermal Shock ±0.005°C after 10 times thermal cycles from minimum to maximum temperatures
Hysteresis <=0.005°C
Self-heating 50 mW/°C
Response Time 9 seconds for 63% response to step change in water moving at 3 feet per second
Measurement Current 0.5 mA or 1 mA
Sensor Location 32 mm
Sensor Location 5 mm from tip
Insulation Resistance >1000 MΩ at room temperature
Sheath Material Inconeltm
Dimension 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)
External Leads Teflontm –insulated copper wire, 4 leads, 2.5 meters
Handle Dimension 1730-12: 15mm (OD) x 65mm (L)
1730-9: 10mm (OD) X 50 mm (L)
Handle Temperature Range* -50°C to 180°C
Calibration Options 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

Model Description
9001 Carrying Case