Thermocouple, J type, Assembly

As a temperature sensor, thermocouple assembly is usually used with display instruments, recording instruments and signal conditioners.

Specification:
1. Thermocouple temperature range chart

2. Thermowell application temperature range chart

3. Thermowell installing form (unit: mm)

4. Selection chart

5. Thermocouple assembly installation diagram

Tips: Troubleshooting for thermocouple thermode
Thermode is a metal conductor. In usage, due to long-term smoking of high temperature and influence of surrounding environmental smell (corrosion, water vapor), it will be aged and deteriorate, and causes changes of the correspondence of thermal electromotive force an temperature of thermode and deviations of temperature-millivolt voltage comparison table, thus giving rise to errors of temperature measurement.
Or the insertion depth of thermode is not enough. The fault generally happens in new devices or in process of repair of devices. Length of protective casing in installation of thermocouple is not enough, which causes distance in pipeline equipment fail to reach to the center of medium and temperature measurement end of thermocouple fail to reach to the peak of temperature, thus causing the measured temperature lower. If insertion depth of thermocouple is too close to outer wall of pipeline equipment, errors will be much bigger and even losing the significance of measurement. If protective casing is long enough while thermode is not long enough, it can be disposed by finding an enough long one to insert in. If protective casing is not long enough, it cannot be disposed but change after the device stops.