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Brief Description
The WRR-131 assembly thermocouple is used as asensor to measure temperature, usually matched with display instruments,recording meter and electronic regulator. It can directly measure temperaturefrom 0oC to 1800oC of liquid, vapor, gas medium and solidsurface during various production processes.
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 WRR-131 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(double tubes)
2)ø16mm high aluminum tube(single tube)
3)ø20mm high aluminum tube
Upper and lower limits of thermocouple and insulatingresistance:
Upper temperature limit(tm℃) Test temperature(T℃ ) Resistance(MΩ)
100≤tm<300 t=tm 10
300≤tm<500 t=tm 2
500≤tm<850 t=tm 0.5
850≤tm<1000 t=tm 0.08
1000≤tm<1300 t=tm 0.02
tm>1300 t=1300 0.02
Specifications
Thermocouple type Model Graduation Temp range℃ Specs Response time T0.5S
Dia mm Protection casingmaterial
Simplex PtRh30-PtRh6 WRR-120 B 0~1600 Φ16 corundum <150
WRR-121 Φ25 <360
Duplex PtRh30-PtRh6 WRR2-120 Φ16 <150
WRR2-121 Φ25 <360
SimplexPtRh10-Pt WRP-120 S 0~1300 Φ16 High aluminum <150
WRP-121 Φ25 <360
Duplex PtRh10-Pt WRP2-120 Φ16 <150
WRP2-121 Φ25 <360
Simplex PtRh30-PtRh6 WRR-130 B 0~1600 Φ16 corundum <150
WRR-131 Φ25 <360
Duplex PtRh30-PtRh6 WRR2-130 Φ16 <150
WRR2-131 Φ25 <360
SimplexPtRh10-Pt WRP-130 S﹡ 0~1300 Φ16 High aluminum <150
WRP-131 Φ25 <360
Duplex PtRh10-Pt WRP2-130 Φ16 <150
WRP2-131 Φ25 <360
Thermocouple type Model Graduation Temp range℃ Specs Response time T0.5S
Dia mm Protection casingmaterial
Simplex PtRh30-PtRh6 WRR-120 B 0~1600 Φ16 corundum <150
WRR-121 Φ25 <360
Duplex PtRh30-PtRh6 WRR2-120 Φ16 <150
WRR2-121 Φ25 <360
SimplexPtRh10-Pt WRP-120 S 0~1300 Φ16 High aluminum <150
WRP-121 Φ25 <360
Duplex PtRh10-Pt WRP2-120 Φ16 <150
WRP2-121 Φ25 <360
Simplex NiCr-NiSi WRN-122 K 0~1100 Φ16 High aluminum <240
WRN-123 0~1200 Φ20
Duplex NiCr-NiSi WRN2-123 0~1100
Simplex PtRh30-PtRh6 WRR-130 B 0~1600 Φ16 corundum <150
WRR-131 Φ25 <360
Duplex PtRh30-PtRh6 WRR2-130 Φ16 <150
WRR2-131 Φ25 <360
SimplexPtRh10-Pt WRP-130 S﹡ 0~1300 Φ16 High aluminum <150
WRP-131 Φ25 <360
Duplex PtRh10-Pt WRP2-130 Φ16 <150
WRP2-131 Φ25 <360
Simplex NiCr-NiSi WRN-133 K 0~1200 Φ30 High aluminum <240
Duplex NiCr-NiSi WRN2-133 0~1100
Note: Forspecial requirement of the WRR-131 thermocouple, please contact the manufacturer.