• AM1730 Secondary Reference PRT (50.4021447721%)

    AM1730 Secondary Reference PRT

AM1730 Secondary Reference PRT


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
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    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
   ±0.025°C at -196 °C
   ±0.015°C at 0.01 °C
   ±0.035°C at 420 °C
   ±0.01°C at 0 °C after 100 hours at 420 °C
   Short Term Stability
   Thermal Shock
   ±0.005°C after 10 times thermal cycles from minimum to maximum temperatures
   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 Length
   32 mm
   Sensor Location
   5 mm from tip
   Insulation Resistance
   >1000 MΩ at room temperature
   Sheath Material
  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
   *Handle temperature outside this range will cause damage to the probe.

Optional Accessories

Carrying Case