High temperature resistant S-type thermocouple connecting wire compensation wire

High temperature resistant S-type thermocouple connecting wire compensation wire

Detailed information:

The function of the compensating wire for the high-temperature resistant S-type thermocouple connection line is to extend the thermoelectric electrode, which is the cold end of the moving thermocouple, and connect it to the temperature measurement system formed by the display instrument. Compensation wires are generally used in thermocouples, while high-temperature resistant compensation wires. The insulation and protective layers of thermocouple compensation wires are made of different materials according to environmental requirements. The sheath materials include fluoroplastic, low smoke and low halogen polyvinyl chloride, and alkali free glass fiber. Imported high-quality fluoroplastic materials can withstand temperatures of 260 ℃ and adopt a new process of continuous extrusion, making the product have excellent acid resistance, alkali resistance, wear resistance, and non flammability. It can be immersed in oil and water for long-term use. The temperature range for thermocouple compensation wires can be between -60-260 ℃, which is at the contemporary level. The series of products are mainly used in various temperature measuring devices, and the compensation wire models are divided into SC, KC, KX, EX, JX, TX, and NC according to the product variety. Thermocouple compensation wire product usage characteristics: The compensation wire can work in an environment of -60~260 ℃, making it an ideal automation unit. It has been widely used for single or multi-point connection of automated temperature measuring instruments in sectors such as petroleum, chemical, metallurgy, and power.

Product execution standards

GB/T4989-94 (equivalent to IEC584-3 standard)

use characteristics

1. The conductor operates at a high temperature

Heat resistance level: Perfluoroethylene propylene (F46) at 200 ℃, soluble polytetrafluoroethylene at 260 ℃, silicone rubber at 180 ℃

Ordinary grade: polyvinyl chloride at 70 ℃ and 105 ℃, cross-linked polyethylene at 90 ℃, low smoke halogen-free flame-retardant polyolefin at 70 ℃, cross-linked type at 90 ℃ and 125 ℃.

2. Low ambient temperature: PVC sheath: fixed installation -40 ℃, non fixed installation -15 ℃, fluoroplastic insulation and sheath: fixed installation -60 ℃, non fixed installation -20 ℃.

3. Allowable bending radius for cables: For non armored cables, the minimum bending radius is 6 times the outer diameter. For copper tape shielded or steel tape armored point cables, the minimum bending radius is 12 times the outer diameter of the cable. For fluoroplastic insulated and sheathed cables, the minimum bending radius is 10 times the outer diameter of the cable.

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