Resistance Temperature Detector (RTD) PT1000/PT100

RTD (Resistance Temperature Detector)

are seonsor used to measure temperature by Correlating the resistancenof the RTD element with temperature. Morst RTD elements sonsist of length of fine coiled wirewrappen around a ceramic of glass core.  The element is usually quire fragile, so it  is  offen place inside a sheathed probe to protect it.  RTD element is made from a pure matierial whose resistance at vaious temperature has been documented.  The material has a predicatable change in resistance as the temperature changes; this predictable change is used to determine temperature.

Platinum RTD:  PT100 , PT500,  PT1000

Acceptable error telerance :  Din Class A, Din Class B, Class 1/3 DIn,  Class1/5 Din ,  Class 1/10 Din 

Resistance elements include Platinum, Nickel, Copper, and other components. Platinum is the most popular and accurate  type.

1.    Platinum RTD

a)      Current: 5mA, 2mA, 1mA

  A grade: 2mA, 1mA

  JIS standard: 2mA, 1mA, 0.5mA

b)      Category

·         Pt100 means when the temperature is 0°C, the resistance for the element is 100Ω

·         JPt100 is Japanese stadnard