Assembly-type Stainless Steel Junction Box Thermocouple WRR2-131B
Assembly-type Stainless Steel Junction Box Thermocouple WRR2-131B
As the sensor of the temperature measurement, assembly-type stainless steel junction box thermocouple is used with displays, recorders and electrical adjuster completely. It can measure the temperature of liquid, vapor, gas and the surface of solid from 0℃ to 1800℃ directly. According to national regulation, we have manufactured copper- copper nickel, iron-copper nickel etc. type of thermocouple since 1987. They are all not only in line of IEC international standard graduation but also JB/T9238-1999 standard.
It is a thermocouple without fixed device ,but with Ceram protective pipe.
| Thermocouple category | Model | Graduation | Temperature measuring range℃ | Specification |
Thermal response time
τ0.5s
|
|
|
Diameter
mm
|
Protection tube material | |||||
|
Single platinum rhodium30-platinum rhodium6
|
WRR-130B
|
B
|
0~1600
|
Φ16
|
Corundum
|
＜150
＜360
＜150
＜360
|
|
WRR-131B
|
Φ25
|
|||||
|
Double platinum rhodium30-platinum rhodium6
|
WRR2-130B
|
Φ16
|
||||
|
WRR2-131B
|
Φ25
|
|||||
|
Thermocouple types
|
Code
|
Graduation
|
Temperature measuring range
|
Allowable deviation△t℃
|
| 30%Platinum rhodium -6%platinum rhodium |
WRR
|
B
|
0-1800
|
±1.5oC or ±0.0025|t|
|
| 10%Platinum rhodium -platinum |
WRP
|
S
|
0-1600
|
±1.5 oC or ±0.0025|t|
|
| Nickel chrome-nickel silicon |
WRN
|
K
|
0-1300
|
±2.5 oC or ±0.0075|t|
|
| Nickel chrome-copper nickel |
WRE
|
E
|
0-800
|
±2.5 oC or ±0.0075|t|
|
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