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Sinton customers J type thermocouple have been completed and ready to be delivered!

2022-07-28 17:10:42
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high temperature measure for oven J type thermcouple Probe Size:4*10*1000mm, they also can be made according to your design.

 

Type:J



J type thermocouple (4).jpg



Operation Theory of Thermocouple




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The working principle of the thermocouple is based on the physical phenomenon that two conductors with different components are connected into a loop. If the temperature of the two terminals is different, heat flow will be generated in the circuit. 



Type

 

Graduation

            Tolerance Class

     Ⅰ

     Ⅱ

 Tolerance Value

Measuring Range

Tolerance Value

Measuring Range

WRN

  K

±1.5℃

-40~+375

±2.5℃

-40~+333

±0.004|t|

375~1000

±0.0075|t|

333~1200

WRE

  E

±1.5℃

-40~+375

±2.5℃

-40~+333

±0.004|t|

375~800

±0.0075|t|

333~900

WRP

  S

±1℃

0~+1100

±1.5℃

0~600

±[1+0.003

(t-1100)]

1100~1600

±0.0025|t|

600~1600

WRR

  B

±0.0025|t|

600~1700








Notes: t is the actual temperature. It may be indicated with temperature centigrade or percentage of centigrade, the bigger one is preferred.



J type thermocouple (1).jpg


Thermal Response Time

 

When step change of temperature happens, τ0.5 is used to indicate the time for current output signal of instrument changes into 50% of the step change value.



J type thermocouple (7).jpg



Wire Selection



J type thermocouple (6).jpg


The compensation wire shall match with the graduation of thermocouple. Compensation wires of different cross-section area or types shall be selected depending on distance, ambient temperature, and demands on protection.



J type thermocouple (3).jpg


Generally, copper conductor shall be adopted for connection wire of thermal resistance. Cross-section area of the wire to be selected depends on distance, and insulation materials and different protections of the wire to be selected depend on environment conditions.

 

If there's any thermocouple inquiry, welcome contact with us and we are professional with better services and high quality thermocouple.

 

Sinton Group mainly make kinds of electric heating elements and temperature sensor: For example , cartridge heater,hot runner coil heating element, tubular heater element, ceramic emitter, ceramic plate heating element, aluminium casting heater, mica band heater, ceramic band heating elements, Flexible ceramic heating pad, kapton heater, PI film heating elements, resistance wire, thermocouple, Pt100 etc. Also we make industrial heaters for example air duct heater, pipeline heater, oil circulation heater, drying oven etc. All of our heaters and temperature sensor can be OEM and now we have acquired CE certificate for our heating elements.




Sinton Brand Heating Element.jpg

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