Industrial heat resistance as the temperature measurement sensor, usually display meter, recording meter and electronic regulators and other ancillary uses, it can directly measure or control a variety of production processes -200 ℃ -600 ℃ range of liquid, steam, gas and solid surface temperature. 

 According to state regulations, the company produced in accordance with IEC international standard indexing number Pt100 platinum resistance and in accordance with professional standards sub-degree numbers of Cu50 copper fabricated two types of thermal resistance, thermal resistance of a unified design. 

 Main technical indicators: 
 Temperature range and tolerance 
 RTD category 
 Temperature Range ℃ 
 Indexing number 
 Tolerance △ t ℃ 

 WZP platinum resistance 
 -200 ~ 600 
 Pt100 
 Class B (-200 ~ 600 ℃? Tolerance ± (0.30 +0.005 | t |) 

 Class A (-200 ~ 550 ℃) Tolerance ± (0.15 +0.002 | t |) 

 WZC copper resistance 
 -50 ~ 100 
 Cu50 
 -50 ~ 100 ℃ Tolerance ± (0.3 +6.0 × 10-3t) 

 Note: where "t" as the sensing element of the absolute value of the measured temperature. 



 RTD temperature sensing element 100 ℃, the resistance (R100) and it is at 0 ℃, the ratio of the resistance R0: (R100/R0) 

 Graduation No. Pt100: A class R0 = 100 ± 0.06Ω 
 Class B R0 = 100 ± 0.12Ω 
 R0/R100 = 1.3850 
 Graduation No. Cu50: R0 = 50 ± 0.05Ω 
 R0/R100 = 1.428 ± 0.02