Brief Description

The WRN2-230 assembly thermocouple is used as a sensor tomeasure temperature, usually matched with display instruments, recording meterand electronic regulator. It can directly measure temperature from 0oCto 1800oC of liquid, vapor, gas medium and solid surface duringvarious production processes.

Since1987, 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 WRN2-230 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    

Fixed thread thermocouple

Thermocouple    Model   Graduation   Range ℃   Protection casing material   Specs   Junction box              

Total lengthL mm   Insert Lengthl mm  

Simplex NiCr-NiSi   WRN-220     K    0~800 0~1000    1Cr18Ni9Ti 1Cr25Ni20﹟    300350400450550650900115016502150    150200250300400500750100015002000        Splash-proof type      Water-proof type    

WRN-220A  

Duplex Nicr-NiSi   WRN2-220  

WRN2-220A  

Simplex NiCr-CuNi   WRE-220   E    0~600    1Cr18Ni9Ti  

WRE-220A  

Duplex NiCr-CuNi   WRE2-220  

WRE2-220A  

Simplex NiCr-NiSi   WRN-230   K   0~8000~1000   1Cr18Ni9Ti1Cr25Ni20#  

Duplex NiCr-NiSi   WRN2-230  

Simplex NiCr-CuNi   WRE-230   E    0~600    1Cr18Ni9Ti  

Duplex NiCr-CuNi   WRE2-230  

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

2) “#” meansthere has no such type material

3) Nominal pressure:10MPa.

Fixed thread specifications

Model   Fixed thread specifications  

WRN-220   M27×2  

WRN-220A   G3/4〞  

WRN2-220   M27×2  

WRN2-220A   G3/4〞  

WRE-220   M27×2  

WRE-220A   G3/4〞  

WRE2-220   M27×2  

WRE2-220A   G3/4〞  

WRN-230   M27×2  

WRN2-230   M27×2  

WRE-230   M27×2  

WRE2-230   M27×2  

Note: Forspecial requirement of the WRN2-230 thermocouple, please contact themanufacturer.