Brief Description

The WRN-320 assembly thermocouple is used as a sensor to measure temperature, usuallymatched with display instruments, recording meter and electronic regulator. Itcan directly measure temperature from 0oC to 1800oC ofliquid, vapor, gas medium and solid surface during various productionprocesses.

Since 1987,according to the national regulations, our factory have been producing thermocouplemade from PtRh30-PtRh6, PtRh10, NiCr-NiSi, NiCr-CuNi, Cu-CuNi, Fe-CuNi etc underthe IEC international standard index numbers, and JB/T9238-1 999 standard aswell.

Category   Model   Graduation   Range   Allowable  error(△t℃)  

Platinum rhodium30-Platinum  rhodium6   WRR   B   0-1800   ±1.5℃ or ±0.0025∣t∣  

Platinum rhodium10-platinum   WRP   S   0-1600   ±1.5℃ or ±0.0025∣t∣  

Nickel  chromium-nickel silicon   WRN   K   0-1300   ±2.5℃ or ±0.0075∣t∣  

Nickel  chromium-copper nickel   WRE   E   0-800   ±2.5℃ or ±0.0075∣t∣  

Model of WRN-320  assembly thermocouple

W    Temperature  meter  

R   Thermocouple    

□thermocouple material   R) Platinum  rhodium30-Platinum rhodium6  

P) Platinum  rhodium10-platinum    

N) Nickel  chromium-nickel silicon  

E) Nickel  chromium-copper nickel  

□ install and fixed type   1) without  fixed device    

2)fixed thread  type  

3)movable  flange type    

4)fixed  flange type  

5)movable  flange with square tube type  

6) fixed  thread with tapered tube type  

□ junction box type    2)splash  proof type    

3)waterproof  type  

4)explosion-proof  type  

□ design series number    0)ø16mm protecting tube    

1)ø25mm protecting tube(duplex tubes)    

2)ø16mm high aluminum tube(simplex  tube)    

3)ø20mm high aluminum tube    

Movable flange type thermocouple

Thermocouple    Model   Graduation   Temp range℃   Protection tube  material   Specs   Junction box  

Total lengthL mm  

Simplex   NiCr-NiSi   WRN-320    K   0~8000~1000   ICr18Ni9TiICr25Ni20#    300350400450550650900115016502150    Splash-proof type  

Duplex   Nicr-NiSi   WRN2-320  

Simplex   NiCr-CuNi   WRE-320   E   0~600   ICr18Ni9Ti  

Duplex   NiCr-CuNi   WRE2-320  

Simplex   NiCr-NiSi   WRN-330   K   0~8000~1000   ICr18Ni9TiICr25Ni20#    Water-proof type  

Duplex   NiCr-NiSi   WRN2-330  

Simplex   NiCr-CuNi   WRE-330   E   0~600   ICr18Ni9Ti  

Duplex   NiCr-CuNi   WRE2-330  

Note: 1) Thermal-response time-T0.5<911seconds

2) Protection tube material with “#”means there hasno such type material

Note:  For special requirement of the WRN-320  thermocouple, please contact themanufacturer.