WRNK-431 WRNK2-431 WRNK-432 WRNK2-432 Armored thermocouple

WRNK-431 WRNK2-431 WRNK-432 WRNK2-432 Armored thermocouple

Overview of WRNK-431 WRNK2-431 WRNK-432 WRNK2-432 Armored thermocouple

The armored thermocouple has the characteristics of large measurement temperature range, fast response speed, small dynamic error, flexible installation, high mechanical strength, and good pressure resistance. Armored thermocouples can generally measure the surface or internal temperature of gases, liquids and vapors and solids in the range of 0 to 1300 °C. Armored thermocouples can be used with digital instruments, recording adjustment instruments, PLCs, data collectors or computers. As a new generation of temperature sensors, it can be widely used in metallurgy, petroleum, chemical industry, electric power, light industry, textile, food, Ministry of National Defense and Scientific Research

Working priciple of WRNK-431 WRNK2-431 WRNK-432 WRNK2-432 Armored thermocouple

Two different metal conductors are welded together to form a closed loop. If a temperature difference is generated by heating the welding end, a thermoelectromotive force will be generated in the loop. This phenomenon is called the Seebeck effect. If the temperature at the other end (as the reference end) remains constant (usually 0°C), the thermoelectromotive force of the loop becomes a single-valued function of the temperature at the measurement end. This kind of element that measures temperature by measuring thermoelectromotive force, that is, two pairs of metal conductors are called thermocouples.

Feature of WRNK-431 WRNK2-431 WRNK-432 WRNK2-432 Armored thermocouple

1. Less thermal influence time, reducing dynamic error

2. Bendable installation and use
3. Wide measurement range
4. High mechanical strength and good pressure resistance

Prameter data

Material for temperature-sensing element: Nickel chromium-nickel silicon

Type: Sheathed type

Number of thermal wire couple: Non, single support, 2 double support

Installation and fixation mode: Fixed-sleeve flange

Junction box form: Water-proof type

Temperature measurement range and accuracy

The thermal response time of the armored thermocouple shall not be greater than that specified in the following table:

Insulation resistance: When the ambient air temperature is 20±15℃ and the relative humidity is not more than 80%, the insulation resistance value between the even wire and the outer casing of the insulated armored thermocouple should meet the requirements of the following table

Fixed ferrule flange-mounted armored thermocouple