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The Platinum Resistance Thermometer

Share to:
  • Larger measurement range
  • Shorter response times
  • Lower cost
  • Better durability
  • Self powered (no excitation signal required)
  • No self-heating effect
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Platinum Resistance Thermometer Introduction

A platinum resistance thermometer (PRT) is a thermometer constructed from a high purity platinum element (wire-wound coil or thin film) placed in a tube of metal or glass and sealed with an inert atmosphere and/or mineral insulator. Two, three, or four leads are connected to the element and are used to provide for the measurement of the electrical resistance of the element

Platinum Resistance Thermometer Feature

  • Wide temperature Range (–260°C to 1000°C)   

  • Electrical resistance is typically between 0Ω and 400Ω and depends on temperature

  • Excitation current is typically 1mA

  • Stable over time 

  • Stable over temperature

  • Shallow slope (i.e. 0.4Ω/°C for a 100Ω PRT) 

  • Relatively easy to measure 

  • Relatively easy to calibrate 

  • Commercially available in many configurations 


Platinum Resistance Thermometer Specification

Classification Type Standard Model Features Temperature Material Use Requirement Note
 ThermocoupleSWRPPrecious metal 0~1600℃ Pt/Rh 10 Insertion Installation Provide Ceramic casing
 BWRR0~1700℃Pt/Rh 30
 Provide Ceramic casing
RWRQ0~1600℃Pt/Rh 13
Provide Ceramic casing
NWRM Normal 0~1300℃ Ni/Cr High Temperature condicitonFe1600;GH30300;gh3093
KWRN0~1300℃ Ni/Si Noraml condition
JWRF0~600℃ Fe-Cu/Ni Normal temperature 
TWRC0~600℃ Cu-Cu/Ni Normal temperature  SS316L casing
EWRE0~600℃ Ni/Cr-Cu/Ni Normal temperature 

 

ClassificationTypeStandard ModelFeaturesTemperatureMaterial Use RequirementNote
ResistanceC WZPSpecial0~2300℃ W/ReVacuum field ceramics Tube
PT10WZPNormal-200~650℃ PtStableSS304,316L Tube
PT100WZPNormal-200~500℃Pt With Different Range 
PT1000WZC-200~500℃Pt
Cu50WZCNormal-50~100℃Cu Temperature range
Cu100WZC-50~100℃Cu
PT500WZPSpecial-200~650℃Pt

PT200WZP-200~650℃Pt

ThermistorNTC
 Low Accurcy



 



-Manuals

Platinum Resistance Thermometer

-Data sheet


Platinum Resistance Thermometer Application

A platinum RTD (Resistance Temperature Detector) with a resistance of 100 ohms at 0°C which changes with temperature. They are suitable for applications in the temperature range of -200°C to 600°C but are more commonly used in the range -50°C to +250°C. These temperature sensors are reliable and can offer a higher degree of accuracy.

Type K and J Thermocouples application 1


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