Anhui Tiankang, WRNK-230 armored thermocouple has many advantages such as bending, high voltage resistance, fast thermal response time, and durability. Like industrial assembled thermocouples, it is commonly used as a temperature sensor in conjunction with display instruments, recording instruments, and electronic regulators. It can directly measure the temperature of liquid, vapor, gas media, and solid surfaces in various production processes ranging from 0 to 800 ℃.

Working principle of WRNK-230 armored thermocouple

The working principle is that two conductors with different compositions are welded at both ends to form a circuit. The temperature measuring end is called the measuring end, and the wiring terminal is called the reference end. When there is a temperature difference between the measuring end and the reference end, a thermal current will be generated in the circuit. When connected to a display instrument, the instrument will indicate the corresponding temperature value of the heat generated by the thermocouple. The thermoelectric potential of armored thermocouples will increase as the temperature at the measuring end rises. The magnitude of the thermoelectric potential is only related to the material of the armored thermocouple conductor and the temperature difference between the two ends, and is independent of the length and diameter of the thermocouple.

Main technical indicators of WRNK-230 armored thermocouple: temperature measurement range and accuracy

Note:

(1) T is the absolute value of the measured temperature

(2) T-type and J-type indexing products need to be ordered in consultation with the manufacturer.

Armored thermocouple thermal response time

When there is a step change in temperature, the time required for the output of the thermocouple to change to 50% of the step change is called the thermal response time, represented by T0.5.

The thermal response time of armored thermocouples shall not exceed the specifications in the following table: