• AM1750 Secondary Reference PRT (55%)

    AM1750 Secondary Reference PRT

AM1750 Secondary Reference PRT


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.
·    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
homepage | info@triwi-online.com | contact us data-sheet Catalog | Manual | Video pdf |      
    Temperature Range
   1750-12: -200°C to 670°C
   1750-20: -200°C to 670°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
   ±0.05°C at 660 °C
   ±0.01°C at 0 °C after 100 hours at 660 °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
   1750-12: 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 Leads
    Teflontm –insulated copper wire, 4 leads, 2.5 meters
   Handle Dimension
   15mm (OD) X 65 mm (L)
   Handle Temperature Range*
   -50°C to 180°C
   Calibration Options
   1750-12-T, PRT with NIST traceable calibration and data
   1750-20-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 for 1750-12
Carrying Case for 1750-20