AM1643 Full Immersion PRT




Product Description

AM1643 Full Immersion PRT

  • Transition junction and lead wire can withstand high temperature up to 420 °C
  • Accuracy: ±0.04 °C at 0 °C
  • Temperature range: 0 °C to 420 °C
AM1643 full immersion PRT features a unique design that allows for the users to apply the probe together with its lead wire in a high temperature environment such as ovens or furnaces etc. It covers a wide range of temperature from 0 °C to 420 °C with amazing accuracy of ±0.04 °C at 0 °C, short term stability of ±0.02 °C and fast respond time of 5 seconds.  
To reach the best performance in stability and repeatability, the wire-wound sensing elements are 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 shocks and thermal shock performance. This probe conforms to the DIN/IEC-751 curve precisely.  


  • Temperature range: 0 °C to 420 °C
  • Accuracy: ±0.04 °C at 0 °C
  • Long term drift: ±0.04 °C
  • Short term stability: 0.02 °C
  • Transition junction and lead wire can withstand high temperature up to 420 °C
  • Temperature Coefficient 0.00385
  • Follow DIN/IEC-751 precisely
  • Inconeltm sheath
  • Quick response time


Temperature Range
0 °C to 420 °C                                      
Resistance at 0 °C
Nominal 100 Ω
Temperature Coefficient
0.00385 Ω/ Ω/°C
±0.04 °C at 0 °C
±0.05 °C at 200 °C
±0.07 °C at 420 °C
±0.04 °C at 0 °C after 100 hours at 420 °C
Short Term Stability
±0.02 °C
Thermal Shock
±0.02 °C after 10 times thermal cycles from minimum to maximum temperatures
<=0.01 °C
50 mW/°C
Response Time
5 seconds for 63% response to step change in water moving at 3 feet per second
Measurement Current
1 mA
Minimum immersion depth
50 mm
Maximum immersion depth
Dry medium: full immersion
Liquid medium: use protective tube if immersion depth reaches transition junction
Sensor Length
30 mm
Insulation Resistance
>500 MΩ at room temperature
Sheath Material
0.125 inch X 2 inch (3 mm X 50 mm)
External Leads
Four fiberglass insulation Ni-plated copper wires, 2.5 meters (longer lead wires are available per request)
Handle Dimension
7 mm (OD) X 30 mm (L)
Optional Calibration
NIST traceable calibration and data available per request: Ordering # 5012
             *With optional calibration.

Optional Accessories




Wooden Carrying Case

    About us

    บริษัท เมสเชอร์เมนท์เอเชีย จำกัด
    Measurementasia Co.,Ltd.

    99 Moo. 3, Khlong 5, Khlong Luang,
    Pathumthani 12120



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