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WR series assembled thermal resistance

Industrial assembled thermocouples as temperature sensors are usually used with display instruments, recording instruments and electronic regulators
INQUIRY
Description SELECTION CRITERIA INSTALLATION AND USE FIELD INSTALLATION

Industrial assembled thermocouples as temperature sensors are usually used together with display instruments, recording instruments and electronic regulators. It can directly measure the surface temperature of liquids, vapors and gaseous media and solids in the range of 0 ° C to 1800 ° C in various production processes.
According to national regulations, various indexing thermocouples produced by our company conform to IEC international standards.
Product implementation standards: IEC584, IEC1515
                                                        GB / T16839-1997

 
Thermocouple category Code Index number Measurement range ℃ Allowable deviation △ t ℃
Platinum rhodium 30-platinum rhodium 6 WRR B 600~1700 ±1.5℃或±0.25% t
Platinum-rhodium 13-platinum WRQ R 0~1600 ±1.5℃或±0.25% t
Platinum rhodium 10-platinum WRP S 0~1600 ±1.5℃或±0.25% t
NiCr-NiSi WRN K 0~1200 ±2.5℃或±0.75% t
NiCr-CuNi WRE E 0-800 ±2.5℃或±0.75% t
Copper-copper nickel WRC T -40-350 ±1℃或±0.75% t
Iron-copper nickel WRF J 0-800 ±2.5℃或±0.75% t
NiCrSi-NiSi WRM N 0~1200 ±2.5℃或±0.75% t
Note: "t is the measured temperature of the temperature sensing element

◆ Thermal response time
When there is a step change in temperature, the output of the thermocouple changes to 5% of the change. The time required is called the thermal response time, which is represented by to5.
◆ Nominal pressure of thermocouple
Generally refers to the static external pressure that the protection tube can withstand without breaking at the working temperature. In fact, the allowable working pressure is not only related to the diameter and wall thickness of the protective tube material, but also to its structural form, installation method, depth of insertion, and the velocity and type of the measured medium
WR

 

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