Junction Box Thermocouple
    Reliable sealing of positive and negative pressure is an important criterion for selecting thermocouples for temperature measurement of liquids and gases. The junction box is equipped with ceramic wire sockets and can be optionally equipped with single or double thermocouples. At the same time, multiple materials and sizes of protective tubes are available for selection. Different materials and sizes of protective tubes directly affect the response time, impact resistance, and pressure resistance of the product. The choice of appropriate protective sleeve material also depends on the measured medium and temperature range.

    -Optional replaceable thermocouple plug

    -Can provide single and double thermocouples

    -Integrated temperature transmitter optional

    -High precision, good stability, fast response speed

    Product Display

    Product Introduction

    Reliable sealing of positive and negative pressure is an important criterion for selecting thermocouples for temperature measurement of liquids and gases. The junction box is equipped with ceramic wire sockets and can be optionally equipped with single or double thermocouples. At the same time, multiple materials and sizes of protective tubes are available for selection. Different materials and sizes of protective tubes directly affect the response time, impact resistance, and pressure resistance of the product. The choice of appropriate protective sleeve material also depends on the measured medium and temperature range.

    Product Accuracy

    Thermocouple accuracy

    Temperature measuring element Class 1 Measuring range Class 2 Measuring range
    TCu-CuNi 0.5℃ or (0.4% x|T|)℃ -40..+350℃ 1℃ or (0.75% x|T|)℃ -40..+350℃

    JFe-CuNi
    KNiCr-Ni
    ENiCr-CuNi
    NNiCrSi-NiSi

    1.5℃ or (0.4% x|T|)℃

    -40..+750℃
    -40..+1200℃
    -40..+900℃
    -40..+1200℃

    2.5℃ or (0.75% x|T|)℃  -40..+750℃
    -40..+1200℃
    -40..+900℃
    -40..+1200℃
    SPtRh10-Pt
    RPtRh13-Pt
    1.0℃ or  0.3% x(|t|-1100) ℃ 0..+1600℃
    0..+1600℃
    1.5℃ or (0.25% x|T|)℃

    0..+1600℃
    0..+1600℃

    BPtRh30-PtRh6 —— 0..+1700℃ 1.5℃ or (0.25% x|T|)℃ 0..+1700℃

     

    Sensor protection tube

    Material 304 stainless steel/316L stainless steel, other special materials need to be customized separately
    Diameter 6mm, 7mm, 8mm, 9mm, 11mm, other sizes can be customized according to specific customer requirements
    length customized according to customer requirements
    Support tube The standard length of the support tube is 70mm. The length of the support tube is selected based on the measured temperature and ambient temperature, with the aim of keeping the temperature at the location where the junction box is located below the working temperature. The diameter is usually 9mm or 11mm, depending on the parameters of the product.

     

    Process connection