Mineral Insulated Thermocouple Cable for Accurate Temperature Measurement in Harsh Environments

Quick Details:

Type: K, N, E, J, T

Brand: LEADKIN

Core number: 2, 4, 6

Dia(mm): 0.5mm to 12.7mm

Usage: for thermocouple making

Insulator: 99.6% high purity MgO

Making sample time: all type in stock
Trade term: FOB, EXW, CIF, CFR
Payment term: T/T,Western Union, L/C

Sheath material: SS321(SS304), SS316

Application: connecting with thermocouple and instrument machine
Conductor material: NiCr-NiSi,NiCrSi-NiSi), NiCr-Konstantan, Fe-Konstantan, Cu-Konstanta

Name:Factory Direct Types 2/4/6/8 Cores Mineral Insulated Cable K/N/E/J/T Mi Cable for Thermocouple

 

Type for Sheath Wire Type K

Accuracy for Sheath Wire Type K

Mineral insulated thermocouple cable (MI cable) is a specialized type of thermocouple cable designed for high-temperature and harsh environments. Here are some key features and benefits of MI thermocouple cables:

Features:
Construction:

Mineral Insulation: The cable consists of thermocouple wires insulated with a solid mineral insulation, typically magnesium oxide (MgO). This provides excellent thermal conductivity and electrical insulation.
Metal Sheath: The wires are usually enclosed in a metal sheath (such as stainless steel or inconel) that protects against physical damage and chemical corrosion.
Compact Design: The construction allows for a smaller diameter compared to other types of thermocouple cables.
Temperature Range:

MI cables can operate in extreme temperatures, often up to 1200°C (2192°F) or higher, depending on the materials used.
Durability:

The robust construction makes MI cables resistant to abrasion, moisture, and various chemicals, making them suitable for industrial applications.
Accuracy:

MI thermocouples provide highly accurate temperature readings due to minimal thermal lag and stable insulation properties.
Flexibility:

Although they are robust, MI cables can be made flexible, which allows for easier installation in tight spaces.

1. Application

Thermocouple mineral insulated cable is widely applied in industry, are used for power and control circuits of critical equipment, such as Temperature measurement devices; a proven choice for high temperature probe fabrication.
Industrial Processes: Used in various industries such as petrochemical, power generation, and metallurgy, where high-temperature measurements are critical.
Furnaces and Ovens: Ideal for applications in kilns, ovens, and furnaces that operate at high temperatures.
Aerospace and Automotive: Utilized in environments where precision temperature measurement is crucial.
Installation and Handling:
Terminations: MI cables can be terminated in various ways, including fitting them into connectors or junction boxes.
Bending Radius: While MI cables are flexible, they still have a minimum bending radius that should be adhered to during installation to prevent damage.
Advantages:
Safety: The metal sheath protects against electrical interference and reduces the risk of short circuits.
Longevity: The durability of the materials used ensures a longer service life compared to standard thermocouple cables.

2. Contruction

Itis made by placing one or more wire conductors inside a circular copper tube and filling the intervening spaces with dry magnesium oxide powder.

The overall assembly is then pressed between rollers to reduce its diameter (and increase its length).

A mineral-insulated (MI) thermocouple cable is a specialized type of cable used for temperature measurement in various industrial applications. It consists of two dissimilar metal wires (typically different alloys) joined together at one end to form a thermocouple junction. The junction is then enclosed within a mineral insulation material, typically magnesium oxide (MgO), which provides electrical insulation and mechanical protection.

The mineral insulation is packed tightly around the thermocouple wires, ensuring good thermal conductivity between the wires and the outer sheath. The outer sheath is usually made of a corrosion-resistant material such as stainless steel or Inconel.

The MI construction offers several advantages for thermocouple applications. It provides excellent resistance to high temperatures, mechanical stress, and environmental hazards. The mineral insulation helps to protect the thermocouple wires from oxidation, contamination, and moisture ingress, ensuring accurate and reliable temperature measurements.

Mineral-insulated thermocouple cables can be customized with different wire materials and sheath sizes to suit specific temperature ranges and environmental conditions. They are commonly used in industries such as petrochemical, power generation, metal processing, and aerospace, where precise and robust temperature measurement is required.

Product Pictures

Company Information:

A. Main Products

B. Package

We add heat shrink tubing and plastic film to make sure high insulated resistance.

Except marking notes, we also have pass card and test report for every coil cable.

C. Exihibition

Product Advantage:

1:High temperature resistance, flexible, anti-corrosion, fast and accurate temperature measurement.

2:High temperature resistant Extension wire.

3:Probe length can be customized, probe can be bent.

4:Arbitrary bending, high temperature resistance, long service life, fast response speed, fixed spring.

5:High Precision Temperature control probe .

6:Quick response.

FAQ: